Crystal oscillator frequencies - AbsoluteAstronomy.com

Crystal oscillator

A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a very precise frequency...

s can be manufactured for oscillation over a wide range of frequencies, from a few kilohertz up to several hundred megahertz. Many applications call for a crystal oscillator frequency conveniently related to some other desired frequency, so hundreds of standard crystal frequencies are made in large quantities and stocked by electronics distributors. Using frequency dividers, frequency multiplier

Frequency multiplier

In electronics, a frequency multiplier is an electronic circuit that generates an output signal whose output frequency is a harmonic of its input frequency. Frequency multipliers consist of a nonlinear circuit that distorts the input signal and consequently generates harmonics of the input signal...

s and phase locked loop circuits, it is practical to derive a wide range of frequencies from one reference frequency.

Frequency (MHz)	comm	UART	A/V	RTC Real-time clock A real-time clock is a computer clock that keeps track of the current time. Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic device which needs to keep accurate time.-Terminology:The term is used to avoid...	Primary uses
0.032768				X	Real-time clock Real-time clock A real-time clock is a computer clock that keeps track of the current time. Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic device which needs to keep accurate time.-Terminology:The term is used to avoid... s, quartz watches Quartz clock A quartz clock is a clock that uses an electronic oscillator that is regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks are at least an order of magnitude more accurate than good mechanical clocks... and clocks; allows binary division to 1 Hz signal (2¹⁵×1 Hz); also low-speed low-power microcontrollers. Very common.
0.077500				X	Real-time clock Real-time clock A real-time clock is a computer clock that keeps track of the current time. Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic device which needs to keep accurate time.-Terminology:The term is used to avoid... s, quartz watches Quartz clock A quartz clock is a clock that uses an electronic oscillator that is regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks are at least an order of magnitude more accurate than good mechanical clocks... and clocks; also the DCF77 DCF77 DCF77 is a longwave time signal and standard-frequency radio station. Its primary and backup transmitter are located in Mainflingen, about 25 km south-east of Frankfurt am Main, Germany. It is operated by Media Broadcast GmbH , on behalf of the Physikalisch-Technische Bundesanstalt, Germany's... frequency
0.100000				X	Real-time clock Real-time clock A real-time clock is a computer clock that keeps track of the current time. Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic device which needs to keep accurate time.-Terminology:The term is used to avoid... s, quartz watches Quartz clock A quartz clock is a clock that uses an electronic oscillator that is regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks are at least an order of magnitude more accurate than good mechanical clocks... and clocks
1.008		9600			UART clock; allows integer division to common baud rates. (30×33,600 baud, 105×9600 baud or 840×1,200 baud), used for 1200 and 2400 baud modems
1.544	DS1				Bit clock for DS1 Digital Signal 1 Digital signal 1 is a T-carrier signaling scheme devised by Bell Labs. DS1 is a widely used standard in telecommunications in North America and Japan to transmit voice and data between devices. E1 is used in place of T1 outside North America, Japan, and South Korea... systems (+-32 ppm, ANSI T1.102).
1.8432		115200			UART clock; allows integer division to common baud rates. (2¹³×3²×5²; 16×115,200 baud or 96×16×1,200 baud)
2.048000	E1				Allows binary division to 1 kHz (2¹¹×1 kHz). Bit clock for E1 systems (+-50 ppm, ITU G3703).
2.097152				X	Real-time clock Real-time clock A real-time clock is a computer clock that keeps track of the current time. Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic device which needs to keep accurate time.-Terminology:The term is used to avoid... s, divides to 1 Hz signal (2²¹×1 Hz)
2.4576		38400			UART clock; allows integer division to common baud rates up to 38,400. (2¹⁵×3¹×5²; 64×38,400 baud or 2048×1,200 baud)
2.500	Ethernet				Ethernet Ethernet Ethernet is a family of computer networking technologies for local area networks commercially introduced in 1980. Standardized in IEEE 802.3, Ethernet has largely replaced competing wired LAN technologies.... clock for 10 Mbit/s
2.560					Allows binary division to 10 kHz (2⁸×10 kHz)
2.880		115200			UART clock; allows integer division to common baud rates. (25×115,200 baud or 96×25×1,200 baud)
3.072000					Allows binary division to 3 kHz (2¹⁰×3 kHz); can be used to generate 60 Hz signals (51200×60 Hz)
3.088	DS1				2x 1.544, the bit clock for DS1 Digital Signal 1 Digital signal 1 is a T-carrier signaling scheme devised by Bell Labs. DS1 is a widely used standard in telecommunications in North America and Japan to transmit voice and data between devices. E1 is used in place of T1 outside North America, Japan, and South Korea... systems (+-32 ppm, ANSI T1.102). Available as TCXO and OCXO.
3.2768					Allows binary division to 100 Hz (32,768×100 Hz, or 2¹⁵×100 Hz) and to 50 Hz, used in e.g. wattmeters and DC-AC converters
3.575611			PAL		PAL PAL PAL, short for Phase Alternating Line, is an analogue television colour encoding system used in broadcast television systems in many countries. Other common analogue television systems are NTSC and SECAM. This page primarily discusses the PAL colour encoding system... M color subcarrier Subcarrier A subcarrier is a separate analog or digital signal carried on a main radio transmission, which carries extra information such as voice or data. More technically, it is an already-modulated signal, which is then modulated into another signal of higher frequency and bandwidth...
3.579545			NTSC		NTSC NTSC NTSC, named for the National Television System Committee, is the analog television system that is used in most of North America, most of South America , Burma, South Korea, Taiwan, Japan, the Philippines, and some Pacific island nations and territories .Most countries using the NTSC standard, as... M color subcarrier. Because these are very common and inexpensive they are used in many other applications, for example DTMF generators
3.582056			PAL		PAL PAL PAL, short for Phase Alternating Line, is an analogue television colour encoding system used in broadcast television systems in many countries. Other common analogue television systems are NTSC and SECAM. This page primarily discusses the PAL colour encoding system... N color subcarrier
3.64			radio		8x 455 kHz AM broadcast band intermediate frequency Intermediate frequency In communications and electronic engineering, an intermediate frequency is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called... ; also often used in IR remote controls as clock source
3.686400	W-CDMA	115200			UART clock (2×1.8432 MHz); allows integer division to common baud rates. Also used in W-CDMA W-CDMA W-CDMA , UMTS-FDD, UTRA-FDD, or IMT-2000 CDMA Direct Spread is an air interface standard found in 3G mobile telecommunications networks. It is the basis of Japan's NTT DoCoMo's FOMA service and the most-commonly used member of the UMTS family and sometimes used as a synonym for UMTS... systems.
3.93216					allows binary division to 60 Hz (65536×60 Hz, 2¹⁶×60 Hz), used e.g. in wattmeters, DC-AC converters and NTSC vertical sync generators
4.000					Common frequency of low-power microcontrollers.
4.032		115200			UART clock; allows integer division to common baud rates. (35×115,200 baud or 96×35×1,200 baud), used for 1200, 2400, and 4800 baud modems
4.096000	ISDN				Allows binary division to 1 kHz (2¹²×1 kHz). Used in ISDN systems.
4.194304				X	Real-time clock Real-time clock A real-time clock is a computer clock that keeps track of the current time. Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic device which needs to keep accurate time.-Terminology:The term is used to avoid... s, divides to 1 Hz signal (2²²×1 Hz)
4.332	RDS				The RDS Radio Data System Radio Data System, or RDS, is a communications protocol standard for embedding small amounts of digital information in conventional FM radio broadcasts. RDS standardises several types of information transmitted, including time, station identification and programme information.Radio Broadcast Data... signal bit rate is at 1.1875 kbit/s. While the frequency of 4.332 MHz is the most commonly used crystal resonator, its multiples (2×4.332 MHz = 8.664 MHz or 4×4.332 MHz = 17.328 MHz) have been used also.
4.43361875			PAL/NTSC		PAL PAL PAL, short for Phase Alternating Line, is an analogue television colour encoding system used in broadcast television systems in many countries. Other common analogue television systems are NTSC and SECAM. This page primarily discusses the PAL colour encoding system... B/D/G/H/I and NTSC M4.43 color subcarrier
4.608		115200		X	Allows integer division to 1024 kHz and binary division to lower frequencies that are whole multiples of 1 Hz. UART clock; allows integer division to common baud rates (40×115200 baud or 40×96×1,200 baud). Common microcontroller clock frequency. Frequency of the Master Timing Unit (MTU) OCXO of the Space Shuttle Space Shuttle The Space Shuttle was a manned orbital rocket and spacecraft system operated by NASA on 135 missions from 1981 to 2011. The system combined rocket launch, orbital spacecraft, and re-entry spaceplane with modular add-ons... .
4.9152	CDMA	38400			Used in CDMA systems; divided to 1.2288 MHz baseband frequency as specified by J-STD-008. Also UART clock; allows integer division to common baud rates. (128×38,400 baud or 128×32×1,200 baud)
5.000					Common standard frequency. Commonly available as TCXO and OCXO.
5.034963			NTSC		integer multiple of the 59.94 Hz (84000x) vertical refresh and the 15.734 kHz (320x) horizontal scan rates
5.0688		115200			UART clock; allows integer division to common baud rates. (44×115,200 baud or 96×44×1,200 baud)
5.120					Allows binary division to 10 kHz (2⁹×10 kHz)
5.185			radio		used in radio transceivers, clock for some microcontrollers
5.5296		115200			UART clock; allows integer division to common baud rates. (48×115200 baud or 48×96×1,200 baud)
6.144		38400	audio		Digital audio systems - DAT Digital Audio Tape Digital Audio Tape is a signal recording and playback medium developed by Sony and introduced in 1987. In appearance it is similar to a compact audio cassette, using 4 mm magnetic tape enclosed in a protective shell, but is roughly half the size at 73 mm × 54 mm × 10.5 mm. As... , MiniDisc MiniDisc The disc is permanently housed in a cartridge with a sliding door, similar to the casing of a 3.5" floppy disk. This shutter is opened automatically by a mechanism upon insertion. The audio discs can either be recordable or premastered. Recordable MiniDiscs use a magneto-optical system to record... , sound cards; 128×48 kHz (2⁷×48 kHz). Also allows integer division to common UART baud rates up to 38,400.
6.176	DS1				4x 1.544, the bit clock for DS1 Digital Signal 1 Digital signal 1 is a T-carrier signaling scheme devised by Bell Labs. DS1 is a widely used standard in telecommunications in North America and Japan to transmit voice and data between devices. E1 is used in place of T1 outside North America, Japan, and South Korea... systems (+-32 ppm, ANSI T1.102). Available as TCXO and OCXO.
6.400					Binary multiple of 100 kHz (64×100 kHz), 50 kHz, 25 kHz, 12.5 kHz. Half of the common standard 12.8 MHz.
6.451200		115200			21×307.2 kHz; UART clock; allows integer division to common baud rates. (56×115,200 baud or 96×56×1,200 baud)
6.5536					Allows binary division to 100 Hz (65,536×100 Hz, or 2¹⁶×100 Hz); used also in red boxes
7.15909			NTSC		NTSC M color subcarrier (2×3.579545 MHz)
7.200	DARC	57600			UART clock; allows integer division to common baud rates (125×57,600 baud or 125×48×1,200 baud). Half of the more common 14.4 MHz. Reference clock for DARC.
7.3728		115200			UART clock (4×1.8432 MHz); allows integer division to common baud rates
8.000	CAN				used in CAN Controller Area Network Controller–area network is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host computer.... bus systems
8.184	GPS				Half the 16.368 MHz frequency; same use in different chipsets. 8 times the 1.023 MHz C/A GPS signal GPS signals The satellites of the Global Positioning System broadcast radio signals to enable GPS receivers on or near the Earth's surface to determine location and synchronized time. The GPS system itself is operated by the U.S... chipping rate. Multiplied by 192.5 to get the 1575.42 MHz L1 frequency GPS signals The satellites of the Global Positioning System broadcast radio signals to enable GPS receivers on or near the Earth's surface to determine location and synchronized time. The GPS system itself is operated by the U.S... and multiplied by 150 to get the 1227.60 MHz L2 frequency.
8.192000	ISDN				Allows binary division to 1 kHz (2¹³×1 kHz). Used in ISDN systems.
8.664	RDS				The RDS Radio Data System Radio Data System, or RDS, is a communications protocol standard for embedding small amounts of digital information in conventional FM radio broadcasts. RDS standardises several types of information transmitted, including time, station identification and programme information.Radio Broadcast Data... signal bit rate is at 1.1875 kbit/s. While the frequency of 4.332 MHz is the most commonly used crystal resonator, its multiples (2×4.332 MHz = 8.664 MHz or 4×4.332 MHz = 17.328 MHz) have been used also.
8.86724			PAL		PAL B/G/H color subcarrier (2×4.433618 MHz)
9.216		115200		X	Allows integer division to 1024 kHz and binary division to lower frequencies that are whole multiples of 1 Hz. UART clock; allows integer division to common baud rates (80×115200 baud or 80×96×1,200 baud). Master clock for some Japanese variants of DOCSIS DOCSIS Data Over Cable Service Interface Specification is an international telecommunications standard that permits the addition of high-speed data transfer to an existing cable TV system... .
9.54545			NTSC		2/3 of the 14.31818 MHz NTSC clock, 1/3 of the 28.636 MHz clock; common clock for microcontrollers and older processors
9.600		38400			UART clock; allows integer division to common baud rates. (250×38,400 baud or 250×32×1,200 baud)
9.83040	CDMA	38400			Used in CDMA systems (2×4.9152 MHz); divided to 1.2288 MHz baseband frequency. Also UART clock; allows integer division to common baud rates. (256×38,400 baud or 256×32×1,200 baud)
10.000					Common standard frequency. Common frequency of low-power microcontrollers. Commonly available as TCXO and OCXO. Common stratum 3 frequency.
10.2300	GPS				Found in some GPS receivers. Equals the P(Y) GPS signal GPS signals The satellites of the Global Positioning System broadcast radio signals to enable GPS receivers on or near the Earth's surface to determine location and synchronized time. The GPS system itself is operated by the U.S... chipping rate. 10 times the 1.023 MHz C/A GPS signal chipping rate. Multiplied by 154 to get the 1575.42 MHz L1 frequency GPS signals The satellites of the Global Positioning System broadcast radio signals to enable GPS receivers on or near the Earth's surface to determine location and synchronized time. The GPS system itself is operated by the U.S... and multiplied by 120 to get the 1227.60 MHz L2 frequency. Available as OCXO and TCXO.
10.24					Allows binary division to 10 kHz (2¹⁰×10 kHz). Common as a clock in CB radio PLL frequency synthesizer Frequency synthesizer A frequency synthesizer is an electronic system for generating any of a range of frequencies from a single fixed timebase or oscillator. They are found in many modern devices, including radio receivers, mobile telephones, radiotelephones, walkie-talkies, CB radios, satellite receivers, GPS systems,... s to generate the 5 kHz or 10 kHz reference signal. Used in frequency synthesizers in some cordless phones and in many radio frequency transceivers. Master clock for DOCSIS/EuroDOCSIS DOCSIS Data Over Cable Service Interface Specification is an international telecommunications standard that permits the addition of high-speed data transfer to an existing cable TV system... . Used in cable modem termination system Cable modem termination system A cable modem termination system or CMTS is a piece of equipment typically located in a cable company's headend or hubsite, and used to provide high speed data services, such as cable Internet or voice over Internet Protocol, to cable subscribers... s. Used to derive symbol and chip rate in conventional TD-SCDMA TD-SCDMA Time Division Synchronous Code Division Multiple Access or UTRA/UMTS-TDD 1.28 Mcps Low Chip Rate , is an air interface found in UMTS mobile telecommunications networks in China as an alternative to W-CDMA. Together with TD-CDMA, it is also known as UMTS-TDD or IMT 2000 Time-Division .The term... systems. Available as OCXO and TCXO.
10.245	FM radio				Used in radio receivers; mixes with 10.7 MHz intermediate frequency Intermediate frequency In communications and electronic engineering, an intermediate frequency is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called... (IF) yielding 455 kHz signal, a common second IF Intermediate frequency In communications and electronic engineering, an intermediate frequency is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called... for FM radio
10.416667	Ethernet				multiplied by 12 to 125 MHz Gigabit Ethernet Gigabit Ethernet Gigabit Ethernet is a term describing various technologies for transmitting Ethernet frames at a rate of a gigabit per second , as defined by the IEEE 802.3-2008 standard. It came into use beginning in 1999, gradually supplanting Fast Ethernet in wired local networks where it performed... GMII GTXCLK clock, FDDI clock
11.0592		115200			UART clock (6×1.8432 MHz); allows integer division to common baud rates (96×115200 baud or 96×96×1,200 baud); common clock for Intel 8051 Intel 8051 The Intel MCS-51 is a Harvard architecture, single chip microcontroller series which was developed by Intel in 1980 for use in embedded systems. Intel's original versions were popular in the 1980s and early 1990s. While Intel no longer manufactures the MCS-51, binary compatible derivatives remain... microprocessors
11.2896			audio		Used in compact disc Compact Disc The Compact Disc is an optical disc used to store digital data. It was originally developed to store and playback sound recordings exclusively, but later expanded to encompass data storage , write-once audio and data storage , rewritable media , Video Compact Discs , Super Video Compact Discs ,... digital audio systems and CDROM drives; allows binary division to 44.1 kHz (256×44.1 kHz), 22.05 kHz, and 11.025 kHz. Frequencies also used are 16.9344 MHz, 22.5972 MHz, 33.8688 MHz and 45.1584 MHz.
11.454544	teletext				Used in some teletext Teletext Teletext is a television information retrieval service developed in the United Kingdom in the early 1970s. It offers a range of text-based information, typically including national, international and sporting news, weather and TV schedules... circuits; 2×5.727272 MHz (clock frequency of NTSC M teletext; PAL B uses 6.9375 MHz, SECAM uses 6.203125 MHz, PAL G uses 6.2031 MHz, and PAL I uses 4.4375 MHz clock)
11.520		115200			UART clock; allows integer division to common baud rates. (100×115,200 baud or 100×96×1,200 baud)
12.0000	USB/CAN				Used in USB 1.0 and 2.0 systems (with accuracy of 500 ppm) as the reference clock for the full-speed PHY rate of 12 Mbit/s, or multiplied up using a PLL to clock high speed PHYs at 480 Mbit/s; common clock for Intel 8051 Intel 8051 The Intel MCS-51 is a Harvard architecture, single chip microcontroller series which was developed by Intel in 1980 for use in embedded systems. Intel's original versions were popular in the 1980s and early 1990s. While Intel no longer manufactures the MCS-51, binary compatible derivatives remain... microprocessors; also used in CAN Controller Area Network Controller–area network is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host computer.... bus systems
12.288		38400	audio		Digital audio systems - DAT Digital Audio Tape Digital Audio Tape is a signal recording and playback medium developed by Sony and introduced in 1987. In appearance it is similar to a compact audio cassette, using 4 mm magnetic tape enclosed in a protective shell, but is roughly half the size at 73 mm × 54 mm × 10.5 mm. As... , MiniDisc MiniDisc The disc is permanently housed in a cartridge with a sliding door, similar to the casing of a 3.5" floppy disk. This shutter is opened automatically by a mechanism upon insertion. The audio discs can either be recordable or premastered. Recordable MiniDiscs use a magneto-optical system to record... , sound card Sound card A sound card is an internal computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs. The term sound card is also applied to external audio interfaces that use software to generate sound, as opposed to using hardware... s; 256×48 kHz (2⁸×48 kHz). Also allows integer division to common UART baud rates up to 38400.
12.352	DS1				8x 1.544, the bit clock for DS1 Digital Signal 1 Digital signal 1 is a T-carrier signaling scheme devised by Bell Labs. DS1 is a widely used standard in telecommunications in North America and Japan to transmit voice and data between devices. E1 is used in place of T1 outside North America, Japan, and South Korea... systems (+-32 ppm, ANSI T1.102). Available as TCXO and OCXO.
12.40625	teletext				Used in some teletext Teletext Teletext is a television information retrieval service developed in the United Kingdom in the early 1970s. It offers a range of text-based information, typically including national, international and sporting news, weather and TV schedules... circuits; 2×6.203125 MHz (clock frequency of SECAM teletext; PAL B uses 6.9375 MHz, NTSC M uses 5.727272 MHz, PAL G uses 6.2031 MHz, and PAL I uses 4.4375 MHz clock)
12.800					Common standard frequency, common reference clock; binary multiple of 100 kHz (128×100 kHz), 50 kHz, 25 kHz, 12.5 kHz. Commonly available as TCXO and OCXO. Common stratum 3 frequency.
12.9024		115200			UART clock; allows integer division to common baud rates. (112×115200 baud or 112×96×1,200 baud)
12.960		57600			UART clock; allows integer division to common baud rates. (225×57600 baud or 225×48×1,200 baud)
13.000	GSM/UMTS				Commonly used as a reference clock for GSM and UMTS handsets. (13 MHz is exactly 48 times the GSM bit rate). Commonly available as TCXO and OCXO.
13.500			PAL/NTSC		Master clock for PAL/NTSC DVD players, Digital TV receivers, etc. (13.5 MHz is an exact multiple of the PAL PAL PAL, short for Phase Alternating Line, is an analogue television colour encoding system used in broadcast television systems in many countries. Other common analogue television systems are NTSC and SECAM. This page primarily discusses the PAL colour encoding system... and NTSC NTSC NTSC, named for the National Television System Committee, is the analog television system that is used in most of North America, most of South America , Burma, South Korea, Taiwan, Japan, the Philippines, and some Pacific island nations and territories .Most countries using the NTSC standard, as... line frequencies)
13.5168		38400			UART clock; allows integer division to common baud rates. (352×38400 baud or 352×32×1,200 baud)
13.56	RFID				Common contactless smartcard frequency (ISO/IEC 14443)
13.875	teletext				Used in some teletext Teletext Teletext is a television information retrieval service developed in the United Kingdom in the early 1970s. It offers a range of text-based information, typically including national, international and sporting news, weather and TV schedules... circuits; 2×6.9375 MHz (clock frequency of PAL B teletext; SECAM uses 6.203125 MHz, NTSC M uses 5.727272 MHz, PAL G uses 6.2031 MHz, and PAL I uses 4.4375 MHz clock)
14.25	FM radio		PAL		used as sampling frequency for ADCs Analog-to-digital converter An analog-to-digital converter is a device that converts a continuous quantity to a discrete time digital representation. An ADC may also provide an isolated measurement... for digitizing the 10.7 MHz intermediate frequency Intermediate frequency In communications and electronic engineering, an intermediate frequency is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called... in software defined radio implementations of AM/FM radio receivers. Pixel clock of some PAL CCD cameras. Used in PAL version in some early Apple computers, e.g. Apple II Europlus Apple II series The Apple II series is a set of 8-bit home computers, one of the first highly successful mass-produced microcomputer products, designed primarily by Steve Wozniak, manufactured by Apple Computer and introduced in 1977 with the original Apple II... .
14.31818			NTSC		NTSC M color subcarrier (4×3.579545 MHz). Common seed clock for modern PC motherboard clock generator chips, clock for ISA Industry Standard Architecture Industry Standard Architecture is a computer bus standard for IBM PC compatible computers introduced with the IBM Personal Computer to support its Intel 8088 microprocessor's 8-bit external data bus and extended to 16 bits for the IBM Personal Computer/AT's Intel 80286 processor... bus, also common on CGA Color Graphics Adapter The Color Graphics Adapter , originally also called the Color/Graphics Adapter or IBM Color/Graphics Monitor Adapter, introduced in 1981, was IBM's first color graphics card, and the first color computer display standard for the IBM PC.... and VGA cards and in some 8bit computers.
14.35			NTSC		Pixel clock of some NTSC CCD cameras.
14.400	PDC	115200			UART clock; allows integer division to common baud rates (125×115,200 baud or 125×96×1,200 baud). Also a reference clock for PDC Personal Digital Cellular Personal Digital Cellular is a 2G mobile telecommunications standard developed and used exclusively in Japan.After a peak of nearly 80 million subscribers to PDC, it had 46 million subscribers in December 2005, and is slowly being phased out in favor of 3G technologies like W-CDMA and CDMA2000... clock. Reference clock of some consumer GPS receivers.
14.7456		115200			UART clock (8×1.8432 MHz); allows integer division to common baud rates; common clock for small microcontrollers
15.360	3G	38400			UART clock; allows integer division to common baud rates (400×38400 baud or 400×32×1,200 baud). Also used as a 3G 3G 3G or 3rd generation mobile telecommunications is a generation of standards for mobile phones and mobile telecommunication services fulfilling the International Mobile Telecommunications-2000 specifications by the International Telecommunication Union... reference clock. Used as reference clock in some Bluetooth Bluetooth Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security... systems.
16.000	CAN				used in CAN Controller Area Network Controller–area network is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host computer.... bus systems, some USB devices
16.200					Sampling clock for MUSE HDTV systems. Rarely used as reference clock in some Bluetooth Bluetooth Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security... systems.
16.257			EGA		pixel clock generator in MGA and EGA Enhanced Graphics Adapter The Enhanced Graphics Adapter is the IBM PC computer display standard specification which is between CGA and VGA in terms of color and space resolution. Introduced in October 1984 by IBM shortly after its new PC/AT, EGA produces a display of 16 simultaneous colors from a palette of 64 at a... video cards (640x350@60Hz)
16.3676 16.367667 16.3680	GPS				Commonly used for down-conversion and sampling in GPS-receivers. Generates intermediate frequency Intermediate frequency In communications and electronic engineering, an intermediate frequency is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called... signal at 4.092 MHz. 16.3676 or 16.367667 MHz are sometimes used instead of 16.368 MHz to avoid perfect lineup between sampling frequency and GPS spreading code. 16.368 MHz is a reference clock of some consumer GPS receivers. 16.368 MHz is 16 times the 1.023 MHz C/A GPS signal GPS signals The satellites of the Global Positioning System broadcast radio signals to enable GPS receivers on or near the Earth's surface to determine location and synchronized time. The GPS system itself is operated by the U.S... chipping rate; multiplied by 96.25 to get the 1575.42 MHz L1 frequency GPS signals The satellites of the Global Positioning System broadcast radio signals to enable GPS receivers on or near the Earth's surface to determine location and synchronized time. The GPS system itself is operated by the U.S... and multiplied by 75 to get the 1227.60 MHz L2 frequency.
16.369	GPS				Reference clock for some GPS systems. Available as TCXO.
16.384000					Allows binary division to 1 kHz (2¹⁴×1 kHz). Reference clock of some consumer GPS receivers. Commonly available as TCXO and OCXO.
16.5888		115200			UART clock; allows integer division to common baud rates. (144×115200 baud or 144×96×1,200 baud)
16.67					core speed of some microcomputers (relatively common in Motorola 68000 Motorola 68000 The Motorola 68000 is a 16/32-bit CISC microprocessor core designed and marketed by Freescale Semiconductor... family); bus clock; double to 33.33 MHz, quadruple to 66.67 MHz, multiply by 6 to 100 MHz; IOAPIC Intel APIC Architecture The Intel APIC Architecture is a system of advanced programmable interrupt controllers designed by Intel for use in symmetric multiprocessor computer systems. It was originally implemented by the Intel 82093AA and 82489DX, and is found in most x86 SMP motherboards... clock speed, half the PCI bus frequency
16.800		19200			Common standard reference frequency for PLL circuits in radio transmitters and receivers, commonly used for frequency synthesis with adjustment in 2.5, 5 or 6.25 kHz steps (6720×5 kHz, 3360×5 kHz or 2688×5.25 kHz). Also UART clock; allows integer division to common baud rates (500×33600 baud or 500×28×1,200 baud). Commonly available as TCXO, VCXO and VCTCXO. Used as reference clock in some Bluetooth Bluetooth Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security... systems. Used as reference clock in some Bluetooth Bluetooth Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security... systems. Reference clock for some GPS systems.
16.9344		115200	audio		Used in compact disc Compact Disc The Compact Disc is an optical disc used to store digital data. It was originally developed to store and playback sound recordings exclusively, but later expanded to encompass data storage , write-once audio and data storage , rewritable media , Video Compact Discs , Super Video Compact Discs ,... digital audio systems and CDROM drives; allows integer division to 44.1 kHz (384×44.1 kHz), 22.05 kHz, and 11.025 kHz. Also allows integer division to common UART baud rates up to 115200. Frequencies also used are 11.2896 MHz, 22.5972 MHz, 33.8688 MHz and 45.1584 MHz.
17.328	RDS				The RDS Radio Data System Radio Data System, or RDS, is a communications protocol standard for embedding small amounts of digital information in conventional FM radio broadcasts. RDS standardises several types of information transmitted, including time, station identification and programme information.Radio Broadcast Data... signal bit rate is at 1.1875 kbit/s. While the frequency of 4.332 MHz is the most commonly used crystal resonator, its multiples (2×4.332 MHz = 8.664 MHz or 4×4.332 MHz = 17.328 MHz) have been used also.
17.664	DSL	38400			UART clock; allows integer division to common baud rates. (32×552000 baud, 128×138000 baud, 460×38400 baud or 460×32×1,200 baud); DSL clock: 17.664 MHz (VDSL) ... 8×2.208 MHz (ADSL ADC sampling rate)
17.734475			PAL		PAL B/G/H color subcarrier (4×4.433618 MHz)
18.432		115200	audio	X	UART clock (10×1.8432 MHz); allows integer division to common baud rates. Also allows integer division to 48 kHz (384×48 kHz), 96 kHz, and 192 kHz sample rates used in high-end digital audio.
19.200	3G	38400	DVB		UART clock; allows integer division to common baud rates (500×38,400 baud or 500×32×1,200 baud). Also used as a 3G 3G 3G or 3rd generation mobile telecommunications is a generation of standards for mobile phones and mobile telecommunication services fulfilling the International Mobile Telecommunications-2000 specifications by the International Telecommunication Union... reference clock, due to being a least common multiple of W-CDMA W-CDMA W-CDMA , UMTS-FDD, UTRA-FDD, or IMT-2000 CDMA Direct Spread is an air interface standard found in 3G mobile telecommunications networks. It is the basis of Japan's NTT DoCoMo's FOMA service and the most-commonly used member of the UMTS family and sometimes used as a synonym for UMTS... chip rate 3.84 MHz (5x) and 200 kHz channel raster (96x). Commonly available as TCXO and OCXO. Also used in some DVB receiver chipsets. Reference clock of some consumer GPS receivers. Used as reference clock in some Bluetooth Bluetooth Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security... systems. Common stratum 3 frequency.
19.44	T1/E1				Used in DS1/T1 Digital Signal 1 Digital signal 1 is a T-carrier signaling scheme devised by Bell Labs. DS1 is a widely used standard in telecommunications in North America and Japan to transmit voice and data between devices. E1 is used in place of T1 outside North America, Japan, and South Korea... /E1 E-carrier In digital telecommunications, where a single physical wire pair can be used to carry many simultaneous voice conversations by time-division multiplexing, worldwide standards have been created and deployed... systems as a packet clock. Used as reference clock in some Bluetooth Bluetooth Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security... systems. Commonly available as TCXO and OCXO.
19.6608	CDMA	38400			Used in CDMA systems (4×4.9152); divided to 1.2288 MHz baseband frequency; UART clock, allows integer division to common baud rates (512×38400, 1024×19200, etc.)
19.6800	CDMA	19200			Used in CDMA(IS-95 IS-95 Interim Standard 95 is the first CDMA-based digital cellular standard by Qualcomm. The brand name for IS-95 is cdmaOne. IS-95 is also known as TIA-EIA-95.... )/CDMA2000 CDMA2000 CDMA2000 is a family of 3G mobile technology standards, which use CDMA channel access, to send voice, data, and signaling data between mobile phones and cell sites. The set of standards includes: CDMA2000 1X, CDMA2000 EV-DO Rev. 0, CDMA2000 EV-DO Rev. A, and CDMA2000 EV-DO Rev. B... systems; divided to 1.2288 MHz baseband frequency;UART clock, allows integer division to common baud rates (1025×19200, 1025×16×1200, etc.) Used as reference clock in some Bluetooth Bluetooth Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security... systems. Commonly available as TCXO.
19.800	CDMA				Used in some CDMA systems. Used as reference clock in some Bluetooth Bluetooth Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security... systems.
20.000	Ethernet				10 Mbit/s ethernet Ethernet physical layer The Ethernet physical layer is the physical layer component of the Ethernet family of computer network standards.The Ethernet physical layer evolved over a considerable time span and encompasses quite a few physical media interfaces and several magnitudes of speed... . Commonly available as TCXO and OCXO. Common stratum 3 frequency.
20.2752		115200			UART clock; allows integer division to common baud rates. (176×115200 baud or 176×96×1,200 baud)
20.48000					Allows binary division to 10 kHz (2¹¹×10 kHz). Commonly available as TCXO and OCXO.
21.47727			NTSC		NTSC M color subcarrier (6×3.579545 MHz). Common seed clock for many older computer systems, e.g. NES Nintendo Entertainment System The Nintendo Entertainment System is an 8-bit video game console that was released by Nintendo in North America during 1985, in Europe during 1986 and Australia in 1987... .
22.1184		115200			UART clock (12×1.8432 MHz); allows integer division to common baud rates
22.5792			audio		Used in compact disc Compact Disc The Compact Disc is an optical disc used to store digital data. It was originally developed to store and playback sound recordings exclusively, but later expanded to encompass data storage , write-once audio and data storage , rewritable media , Video Compact Discs , Super Video Compact Discs ,... digital audio systems and CDROM drives; allows binary division to 44.1 kHz (512×44.1 kHz), 22.05 kHz, and 11.025 kHz. Frequencies also used are 11.2896 MHz, 16.9344 MHz, 33.8688 MHz and 45.1584 MHz.
23.104	GPS				Reference clock for some GPS systems. Available as TCXO.
23.9616		115200			UART clock; allows integer division to common baud rates. (208×115200 baud or 208×96×1,200 baud)
24	USB				full-speed USB (24 MHz * 20 = 480Mbit/s); LCD monitor some MCU
24.5535	GPS				Reference clock for some GPS systems. Available as TCXO. Almost 24 times the 1.023 MHz C/A code chipping rate.
24.576	Firewire		audio		Digital audio systems - DAT Digital Audio Tape Digital Audio Tape is a signal recording and playback medium developed by Sony and introduced in 1987. In appearance it is similar to a compact audio cassette, using 4 mm magnetic tape enclosed in a protective shell, but is roughly half the size at 73 mm × 54 mm × 10.5 mm. As... , MiniDisc MiniDisc The disc is permanently housed in a cartridge with a sliding door, similar to the casing of a 3.5" floppy disk. This shutter is opened automatically by a mechanism upon insertion. The audio discs can either be recordable or premastered. Recordable MiniDiscs use a magneto-optical system to record... , AC'97, sound card Sound card A sound card is an internal computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs. The term sound card is also applied to external audio interfaces that use software to generate sound, as opposed to using hardware... s; 512×48 kHz (2⁹×48 kHz); also used as bus reference clock in Firewire systems (with accuracy of 100 ppm). 49.1520 MHz (2x 24.576) also used.
24.704	DS1				16x 1.544, the bit clock for DS1 Digital Signal 1 Digital signal 1 is a T-carrier signaling scheme devised by Bell Labs. DS1 is a widely used standard in telecommunications in North America and Japan to transmit voice and data between devices. E1 is used in place of T1 outside North America, Japan, and South Korea... systems (+-32 ppm, ANSI T1.102). Available as TCXO and OCXO.
25.000	Ethernet				Fast Ethernet Fast Ethernet In computer networking, Fast Ethernet is a collective term for a number of Ethernet standards that carry traffic at the nominal rate of 100 Mbit/s, against the original Ethernet speed of 10 Mbit/s. Of the fast Ethernet standards 100BASE-TX is by far the most common and is supported by the... MII Media Independent Interface The Media Independent Interface was originally defined as a standard interface used to connect a Fast Ethernet MAC-block to a PHY chip.The MII design has been extended to support reduced signals and increases speeds... clock (100 Mbps/4-bit nibble Nibble In computing, a nibble is a four-bit aggregation, or half an octet... ) (with accuracy of 100 ppm); also multiplied by 5 to 125 MHz Gigabit Ethernet Gigabit Ethernet Gigabit Ethernet is a term describing various technologies for transmitting Ethernet frames at a rate of a gigabit per second , as defined by the IEEE 802.3-2008 standard. It came into use beginning in 1999, gradually supplanting Fast Ethernet in wired local networks where it performed... GMII GTXCLK clock, FDDI clock; used as input for 100 MHz PCI Express PCI Express PCI Express , officially abbreviated as PCIe, is a computer expansion card standard designed to replace the older PCI, PCI-X, and AGP bus standards... clock generators
25.175			VGA		Common Video Graphics Array Video Graphics Array Video Graphics Array refers specifically to the display hardware first introduced with the IBM PS/2 line of computers in 1987, but through its widespread adoption has also come to mean either an analog computer display standard, the 15-pin D-subminiature VGA connector or the 640×480 resolution... pixel clock (i.e., 640x350@70 Hz,640x400@70 Hz, 640x480@60 Hz)
25.8048		115200			UART clock; allows integer division to common baud rates. (224×115200 baud or 224×96×1,200 baud)
26.000	GSM/UMTS		DVB		Commonly used as a reference clock for GSM and UMTS/3G 3G 3G or 3rd generation mobile telecommunications is a generation of standards for mobile phones and mobile telecommunication services fulfilling the International Mobile Telecommunications-2000 specifications by the International Telecommunication Union... handsets. (26 MHz is exactly 96 times the GSM bit rate). Commonly available as TCXO and OCXO. Also used in some DVB receiver chipsets. Reference clock of some consumer GPS receivers.
26.2144					Popular for 102.4 kS/s, 204.8 kS/s or similar sampling systems, when a power-of-two size FFT follows the sampling. In this case the FFT frequency bins end up to be at "nice" frequencies for humans. Also allows integer division to 25 Hz and multiples of 25 Hz (50 Hz, 100 Hz, 200 Hz); 26.2144 MHz = 100 x 2¹⁸ = 25 x 2²⁰.
26.5625	FibreChannel				quadrupled to 106.250 MHz Fibre Channel Fibre Channel Fibre Channel, or FC, is a gigabit-speed network technology primarily used for storage networking. Fibre Channel is standardized in the T11 Technical Committee of the InterNational Committee for Information Technology Standards , an American National Standards Institute –accredited standards... clock
26.975	RC				27 MHz band, band 0/1 (grey/brown), "split" frequency; radio-controlled models of cars, boats, aircraft
26.995	RC				27 MHz band, band 1 (brown); radio-controlled models of cars, boats, aircraft
27.000			PAL/NTSC		Master clock for PAL/NTSC DVD players, Digital TV receivers, some modem Modem A modem is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data... s etc. (27 MHz is an exact multiple of the PAL PAL PAL, short for Phase Alternating Line, is an analogue television colour encoding system used in broadcast television systems in many countries. Other common analogue television systems are NTSC and SECAM. This page primarily discusses the PAL colour encoding system... and NTSC NTSC NTSC, named for the National Television System Committee, is the analog television system that is used in most of North America, most of South America , Burma, South Korea, Taiwan, Japan, the Philippines, and some Pacific island nations and territories .Most countries using the NTSC standard, as... line frequencies)
27.025	RC				27 MHz band, band 1/2 (brown/red), "split" frequency; radio-controlled models of cars, boats, aircraft
27.045	RC				27 MHz band, band 2 (red); some radio-controlled models of cars, boats, aircraft
27.075	RC				27 MHz band, band 2/3 (red/orange), "split" frequency; radio-controlled models of cars, boats, aircraft
27.095	RC				27 MHz band, band 3 (orange); some radio-controlled models of cars, boats, aircraft
27.125	RC				27 MHz band, band 3/4 (orange/yellow), "split" frequency; radio-controlled models of cars, boats, aircraft
27.145	RC				27 MHz band, band 4 (yellow); some radio-controlled models of cars, boats, aircraft
27.175	RC				27 MHz band, band 4/5 (yellow/green), "split" frequency; radio-controlled models of cars, boats, aircraft
27.195	RC				27 MHz band, band 5 (green); radio-controlled models of cars, boats, aircraft
27.225	RC				27 MHz band, band 5/6 (green/blue), "split" frequency; radio-controlled models of cars, boats, aircraft
27.255	RC				27 MHz band, band 6 (blue); some radio-controlled models of cars, boats, aircraft
27.4560	GPS				Reference clock for some GPS systems. Available as TCXO.
27.6480		115200			UART clock; allows integer division to common baud rates. (240×115200 baud or 240×96×1,200 baud)
28.224	modems	115200	audio		used in some faxes and modems; UART clock, allows integer division to common baud rates (245×115200, 512×38400, 1024×19200, etc.) and to modem and fax rates (504×56000, 580×48000, 840×33600, 980×28800, 1960×14400, 2352×12000, etc.); also divides to common audio frequencies (147×192000, 588×48000, 640×44100, 1280×22050, 2560×11025)
28.322			VGA		Common Video Graphics Array Video Graphics Array Video Graphics Array refers specifically to the display hardware first introduced with the IBM PS/2 line of computers in 1987, but through its widespread adoption has also come to mean either an analog computer display standard, the 15-pin D-subminiature VGA connector or the 640×480 resolution... pixel clock (i.e., 720x450/400@70 Hz)
28.375			PAL		Master clock for some PAL CCD cameras; 2 periods per pixel, 1816 periods per scan line, 567500 periods per frame
28.636			NTSC		Master clock for some NTSC CCD cameras, some NTSC Amiga computers
29.4912		115200			UART clock (16×1.8432 MHz); allows integer division to common baud rates (256x115200)
30.0000					common CPU clock
30.240			VGA		Early Macintosh Macintosh The Macintosh , or Mac, is a series of several lines of personal computers designed, developed, and marketed by Apple Inc. The first Macintosh was introduced by Apple's then-chairman Steve Jobs on January 24, 1984; it was the first commercially successful personal computer to feature a mouse and a... video pixel clock (640x480@66 Hz)
30.720	3G	38400			A 3G 3G 3G or 3rd generation mobile telecommunications is a generation of standards for mobile phones and mobile telecommunication services fulfilling the International Mobile Telecommunications-2000 specifications by the International Telecommunication Union... reference clock; twice the 15.36 MHz, 8x the 3.84 MHz WCDMA chip rate. Reference clock in W-CDMA W-CDMA (UMTS) W-CDMA , UMTS-FDD, UTRA-FDD, or IMT-2000 CDMA Direct Spread is an air interface standard found in 3G mobile telecommunications networks. It is the basis of Japan's NTT DoCoMo's FOMA service and the most-commonly used member of the UMTS family and sometimes used as a synonym for UMTS... systems; can be multiplied by 16 to 491.52 MHz common for driving DAC Digital-to-analog converter In electronics, a digital-to-analog converter is a device that converts a digital code to an analog signal . An analog-to-digital converter performs the reverse operation... s in WCDMA wireless base station Base station The term base station can be used in the context of land surveying and wireless communications.- Land surveying :In the context of external land surveying, a base station is a GPS receiver at an accurately-known fixed location which is used to derive correction information for nearby portable GPS... s or by 32 to 983.04 MHz for UMTS base stations or by 8 to 245.76 MHz, other common DAC sampling frequency. UART clock; allows integer division to common baud rates (800×38400 baud or 800×32×1,200 baud). Available as VCXO, TCXO and OCXO.
31.3344		115200			UART clock; allows integer division to common baud rates. (272×115200 baud or 272×96×1,200 baud)
32.768000					Allows binary division to 1 kHz (2¹⁵×1 kHz). Reference clock of some consumer GPS receivers. Commonly available as TCXO and OCXO.
33.1776		115200			UART clock; allows integer division to common baud rates. (288×115200 baud or 288×96×1,200 baud)
33.33					common CPU clock, PCI bus clock
33.8688		115200	audio		Used in compact disc Compact Disc The Compact Disc is an optical disc used to store digital data. It was originally developed to store and playback sound recordings exclusively, but later expanded to encompass data storage , write-once audio and data storage , rewritable media , Video Compact Discs , Super Video Compact Discs ,... digital audio systems and CDROM drives; allows integer division to 44.1 kHz (768×44.1 kHz), 22.05 kHz, and 11.025 kHz. Also allows integer division to common UART baud rates up to 115200. Available as a TCXO. Frequencies also used are 11.2896 MHz, 16.9344 MHz, 22.5972 MHz and 45.1584 MHz.
34.368	E3	38400			E3 E-carrier In digital telecommunications, where a single physical wire pair can be used to carry many simultaneous voice conversations by time-division multiplexing, worldwide standards have been created and deployed... data rate clock. UART clock; allows integer division to common baud rates. (895×38400 baud or 895×32×1200 baud)
34.950	RC				35 MHz band, channel 55; radio-controlled models of aircraft
34.960	RC				35 MHz band, channel 56; radio-controlled models of aircraft
34.970	RC				35 MHz band, channel 57; radio-controlled models of aircraft
34.980	RC				35 MHz band, channel 58; radio-controlled models of aircraft
34.990	RC				35 MHz band, channel 59; radio-controlled models of aircraft
35.000	RC				35 MHz band, channel 60; radio-controlled models of aircraft
35.010	RC				35 MHz band, channel 61; radio-controlled models of aircraft
35.020	RC				35 MHz band, channel 62; radio-controlled models of aircraft
35.0208		115200			UART clock; allows integer division to common baud rates. (304×115200 baud or 304×96×1,200 baud)
35.030	RC				35 MHz band, channel 63; radio-controlled models of aircraft
35.040	RC				35 MHz band, channel 64; radio-controlled models of aircraft
35.050	RC				35 MHz band, channel 65; radio-controlled models of aircraft
35.060	RC				35 MHz band, channel 66; radio-controlled models of aircraft
35.070	RC				35 MHz band, channel 67; radio-controlled models of aircraft
35.080	RC				35 MHz band, channel 68; radio-controlled models of aircraft
35.090	RC				35 MHz band, channel 69; radio-controlled models of aircraft
35.100	RC				35 MHz band, channel 70; radio-controlled models of aircraft
35.110	RC				35 MHz band, channel 71; radio-controlled models of aircraft
35.120	RC				35 MHz band, channel 72; radio-controlled models of aircraft
35.130	RC				35 MHz band, channel 73; radio-controlled models of aircraft
35.140	RC				35 MHz band, channel 74; radio-controlled models of aircraft
35.150	RC				35 MHz band, channel 75; radio-controlled models of aircraft
35.160	RC				35 MHz band, channel 76; radio-controlled models of aircraft
35.170	RC				35 MHz band, channel 77; radio-controlled models of aircraft
35.180	RC				35 MHz band, channel 78; radio-controlled models of aircraft
35.190	RC				35 MHz band, channel 79; radio-controlled models of aircraft
35.200	RC				35 MHz band, channel 80; radio-controlled models of aircraft
35.210	RC				35 MHz band, channel 81; radio-controlled models of aircraft
35.220	RC				35 MHz band, channel 82; radio-controlled models of aircraft
35.230	RC				35 MHz band, channel 83; radio-controlled models of aircraft
35.240	RC				35 MHz band, channel 84; radio-controlled models of aircraft
35.250	RC				35 MHz band, channel 85; radio-controlled models of aircraft
35.2512		115200			UART clock; allows integer division to common baud rates. (306×115200 baud or 306×96×1,200 baud)
35.260	RC				35 MHz band, channel 86; radio-controlled models of aircraft
35.270	RC				35 MHz band, channel 87; radio-controlled models of aircraft
35.280	RC				35 MHz band, channel 88; radio-controlled models of aircraft
35.290	RC				35 MHz band, channel 89; radio-controlled models of aircraft
35.300	RC				35 MHz band, channel 90; radio-controlled models of aircraft
35.3280	DSL	38400			UART clock; allows integer division to common baud rates. (64×552000 baud, 256×138000 baud, 460×38400 baud or 460×32×1,200 baud); DSL clock: 2×17.664 MHz (VDSL) ... 16×2.208 MHz (ADSL ADC sampling rate)
36.000			VGA		Video Graphics Array Video Graphics Array Video Graphics Array refers specifically to the display hardware first introduced with the IBM PS/2 line of computers in 1987, but through its widespread adoption has also come to mean either an analog computer display standard, the 15-pin D-subminiature VGA connector or the 640×480 resolution... pixel clock for 800x600@56 Hz
36.8640		115200		X	UART clock; allows integer division to common baud rates. (320×115200 baud or 320×96×1,200 baud)
38.400	3G	38400	DVB		UART clock; allows integer division to common baud rates (500×38,400 baud or 500×32×1,200 baud). Also used as a 3G 3G 3G or 3rd generation mobile telecommunications is a generation of standards for mobile phones and mobile telecommunication services fulfilling the International Mobile Telecommunications-2000 specifications by the International Telecommunication Union... reference clock, due to being a second (2×19.2 MHz) least common multiple of W-CDMA W-CDMA W-CDMA , UMTS-FDD, UTRA-FDD, or IMT-2000 CDMA Direct Spread is an air interface standard found in 3G mobile telecommunications networks. It is the basis of Japan's NTT DoCoMo's FOMA service and the most-commonly used member of the UMTS family and sometimes used as a synonym for UMTS... chip rate 3.84 MHz (5x) and 200 kHz channel raster (96x). Also used in some DVB receiver chipsets. Used as reference clock in some Bluetooth Bluetooth Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security... systems.
38.88	T1/E1				Used in DS1/T1 Digital Signal 1 Digital signal 1 is a T-carrier signaling scheme devised by Bell Labs. DS1 is a widely used standard in telecommunications in North America and Japan to transmit voice and data between devices. E1 is used in place of T1 outside North America, Japan, and South Korea... /E1 E-carrier In digital telecommunications, where a single physical wire pair can be used to carry many simultaneous voice conversations by time-division multiplexing, worldwide standards have been created and deployed... systems as a packet clock (2×19.44 MHz). Commonly available as TCXO and OCXO.
39.000	GSM/UMTS				3x13 MHz. Commonly used as a reference clock for GSM and UMTS handsets. (39 MHz is exactly 144 times the GSM bit rate). Available as TCXO.
40.000					common CPU clock, WiFi, OFDM
40.320		115200			UART clock; allows integer division to common baud rates. (350×115200 baud or 350×96×1,200 baud)
40.655	RC				40 MHz band, channel 50; radio-controlled of cars, boats
40.665	RC				40 MHz band, channel 66; radio-controlled models of cars, boats
40.675	RC				40 MHz band, channel 51; radio-controlled models of cars, boats
40.685	RC				40 MHz band, channel 52; radio-controlled models of cars, boats
40.695	RC				40 MHz band, channel 53; radio-controlled models of cars, boats
40.705	RC				40 MHz band, channel 70; radio-controlled models of cars, boats
40.715	RC				40 MHz band, channel 54; radio-controlled models of cars, boats
40.725	RC				40 MHz band, channel 55; radio-controlled models of cars, boats
40.735	RC				40 MHz band, channel 56; radio-controlled models of cars, boats
40.745	RC				40 MHz band, channel 74; radio-controlled models of cars, boats
40.755	RC				40 MHz band, channel 75; radio-controlled models of cars, boats
40.765	RC				40 MHz band, channel 57; radio-controlled models of cars, boats
40.775	RC				40 MHz band, channel 58; radio-controlled models of cars, boats
40.775	RC				40 MHz band, channel 77; radio-controlled models of cars, boats
40.785	RC				40 MHz band, channel 59; radio-controlled models of cars, boats
40.795	RC				40 MHz band, channel 79; radio-controlled models of cars, boats
40.805	RC				40 MHz band, channel 80; radio-controlled models of cars, boats
40.815	RC				40 MHz band, channel 81; radio-controlled models of cars, boats
40.825	RC				40 MHz band, channel 82; radio-controlled models of cars, boats
40.835	RC				40 MHz band, channel 83; radio-controlled models of cars, boats
40.875	RC				40 MHz band, channel 85; radio-controlled models of cars, boats
40.885	RC				40 MHz band, channel 86; radio-controlled models of cars, boats
40.915	RC				40 MHz band, channel 87; radio-controlled models of cars, boats
40.935	RC				40 MHz band, channel 93; radio-controlled models of cars, boats
40.945	RC				40 MHz band, channel 94; radio-controlled models of cars, boats
40.96000					Allows binary division to 10 kHz (2¹²×10 kHz)
40.975	RC				40 MHz band, channel 91; radio-controlled models of cars, boats
40.985	RC				40 MHz band, channel 92; radio-controlled models of cars, boats
40.985	RC				40 MHz band, channel 98; radio-controlled models of cars, boats
44.736	DS3	38400			DS3 Digital Signal 3 A Digital Signal 3 is a digital signal level 3 T-carrier. It may also be referred to as a T3 line.The data rate for this type of signal is 44.736 Mbit/s.This level of carrier can transport 28 DS1 level signals within its payload.... data rate clock. UART clock; allows integer division to common baud rates. (1165×38400 baud or 1165×32×1200 baud)
45.1584		115200	audio		Used in compact disc Compact Disc The Compact Disc is an optical disc used to store digital data. It was originally developed to store and playback sound recordings exclusively, but later expanded to encompass data storage , write-once audio and data storage , rewritable media , Video Compact Discs , Super Video Compact Discs ,... digital audio systems and CDROM drives; allows binary division to 44.1 kHz (1024×44.1 kHz), 22.05 kHz, and 11.025 kHz. Also allows integer division to common UART baud rates up to 115200. Available as a TCXO. Frequencies also used are 11.2896 MHz, 16.9344 MHz, 22.5972 MHz and 33.8688 MHz.
48.000			VGA		common, found in old VGA cards
49.1520	Firewire		audio		Digital audio systems - DAT Digital Audio Tape Digital Audio Tape is a signal recording and playback medium developed by Sony and introduced in 1987. In appearance it is similar to a compact audio cassette, using 4 mm magnetic tape enclosed in a protective shell, but is roughly half the size at 73 mm × 54 mm × 10.5 mm. As... , MiniDisc MiniDisc The disc is permanently housed in a cartridge with a sliding door, similar to the casing of a 3.5" floppy disk. This shutter is opened automatically by a mechanism upon insertion. The audio discs can either be recordable or premastered. Recordable MiniDiscs use a magneto-optical system to record... , AC'97, sound card Sound card A sound card is an internal computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs. The term sound card is also applied to external audio interfaces that use software to generate sound, as opposed to using hardware... s; 1024×48 kHz (2¹⁰×48 kHz); also used as bus reference clock in Firewire systems (with accuracy of 100 ppm). Twice the more-standard frequency of 24.576 MHz.
49.408	DS1				32x 1.544, the bit clock for DS1 Digital Signal 1 Digital signal 1 is a T-carrier signaling scheme devised by Bell Labs. DS1 is a widely used standard in telecommunications in North America and Japan to transmit voice and data between devices. E1 is used in place of T1 outside North America, Japan, and South Korea... systems (+-32 ppm, ANSI T1.102).
49.830 49.860 49.890	RC				toy remote controls, walkie-talkies
50.000	Ethernet				Fast Ethernet Fast Ethernet In computer networking, Fast Ethernet is a collective term for a number of Ethernet standards that carry traffic at the nominal rate of 100 Mbit/s, against the original Ethernet speed of 10 Mbit/s. Of the fast Ethernet standards 100BASE-TX is by far the most common and is supported by the... (2×25 MHz), VGA pixel clock for 800x600@72Hz; PCI Express PCI Express PCI Express , officially abbreviated as PCIe, is a computer expansion card standard designed to replace the older PCI, PCI-X, and AGP bus standards... clock source, doubled to 100 MHz
51.840	SONET	115200			UART clock; allows integer division to common baud rates. (450×115200 baud or 450×96×1,200 baud); SONET Synchronous optical networking Synchronous Optical Networking and Synchronous Digital Hierarchy are standardized multiplexing protocols that transfer multiple digital bit streams over optical fiber using lasers or highly coherent light from light-emitting diodes . At low transmission rates data can also be transferred via an... STS-1 frequency (with accuracy of 20 =ppm)
52.416	modems	115200			UART clock; allows integer division to common baud rates. (455×115200 baud or 455×96×1,200 baud) and to modem and fax rates (936×56000, 1092×48000, 1560×33600, 1820×28800, 3640×14400, 4368×12000, etc.); also divides to some common audio frequencies (273×192000, 1092×48000)
53.125	FibreChannel				Fibre Channel Fibre Channel Fibre Channel, or FC, is a gigabit-speed network technology primarily used for storage networking. Fibre Channel is standardized in the T11 Technical Committee of the InterNational Committee for Information Technology Standards , an American National Standards Institute –accredited standards... clock
56.448	modems	115200			2×28.224 MHz; used in some faxes and modems; UART clock, allows integer division to common baud rates (490×115200, 1024×38400, 2048×19200, etc.) and to modem and fax rates (1008×56000, 1160×48000, 1680×33600, 1960×28800, 3920×14400, 4704×12000, etc.); also divides to common audio frequencies (294×192000, 1176×48000, 1280×44100, 2560×22050, 5120×11025)
66.667					common CPU clock, PCI bus clock
77.760		115200			UART clock; allows integer division to common baud rates. (675×115200 baud or 675×96×1,200 baud). Commonly available as TCXO and OCXO.
80.0000					common CPU clock
100.0000					PCI Express PCI Express PCI Express , officially abbreviated as PCIe, is a computer expansion card standard designed to replace the older PCI, PCI-X, and AGP bus standards... clock
106.250	FibreChannel				Fibre Channel Fibre Channel Fibre Channel, or FC, is a gigabit-speed network technology primarily used for storage networking. Fibre Channel is standardized in the T11 Technical Committee of the InterNational Committee for Information Technology Standards , an American National Standards Institute –accredited standards... clock for 1.0625 gigabaud rate
106.5	radio				Used as an IF Intermediate frequency In communications and electronic engineering, an intermediate frequency is a frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called... LO Local oscillator A local oscillator is an electronic device used to generate a signal normally for the purpose of converting a signal of interest to a different frequency using a mixer. This process of frequency conversion, also referred to as heterodyning, produces the sum and difference frequencies of the... in microwave transceivers, e.g. on the amateur 10 GHz band. Multiplied by 96 to produce 10.224 GHz signal. Available as OCXO.
125.000	Ethernet				Gigabit Ethernet Gigabit Ethernet Gigabit Ethernet is a term describing various technologies for transmitting Ethernet frames at a rate of a gigabit per second , as defined by the IEEE 802.3-2008 standard. It came into use beginning in 1999, gradually supplanting Fast Ethernet in wired local networks where it performed... GMII GTXCLK clock, FDDI clock
155.520	SONET/SDH				3×51.840 MHz (SONET STS-1 frequency), SONET Synchronous optical networking Synchronous Optical Networking and Synchronous Digital Hierarchy are standardized multiplexing protocols that transfer multiple digital bit streams over optical fiber using lasers or highly coherent light from light-emitting diodes . At low transmission rates data can also be transferred via an... /SDH clock
156.25	Ethernet				10 Gigabit Ethernet 10 Gigabit Ethernet The 10 gigabit Ethernet computer networking standard was first published in 2002. It defines a version of Ethernet with a nominal data rate of 10 Gbit/s , ten times faster than gigabit Ethernet.10 gigabit Ethernet defines only full duplex point to point links which are generally connected by... clock, 64-bit signal
161.1328	Ethernet				10 Gigabit Ethernet 10 Gigabit Ethernet The 10 gigabit Ethernet computer networking standard was first published in 2002. It defines a version of Ethernet with a nominal data rate of 10 Gbit/s , ten times faster than gigabit Ethernet.10 gigabit Ethernet defines only full duplex point to point links which are generally connected by... clock, 66-bit signal

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