Clock Synthesizers

A clock synthesizer is an electronic circuit that converts a single clock signal frequency into a range of output frequencies. Frequency values are given in MHz. Clock synthesizers can generate frequencies in multiples of the original, also known as a conversion rate. They can work in a phase-locked look, also known as a PLL.

Clock synthesizers are semiconductor devices which come in a standard package, such has a QFN, TSSOP or SOIC.

Where are Clock Synthesizersused used?

  • Wireless devices
  • RF devices
  • Radio
  • GPS
  • TV
  • Mobile phones

What is a PLL Synthesizer?

PLL synthesizers are analogue devices. A PLL circuit features a Voltage-Controlled Oscillator (VCO). The VCO output is constantly adjusted to match the phase and frequency of an input signal, using feedback from a Phase Comparator. A PLL circuit is often used to synchronise (lock) RF receiver circuits to an incoming carrier signal. If a frequency divider integer-n is introduced between the VCO output and the phase comparator, the PLL circuit output frequency will be fin/n, locked in phase to fin. If fin comes from a highly-stable fixed frequency oscillator and n is programmable, then the circuit forms the basis of an accurate Digital Frequency Synthesizer.

What is a Direct Digital Synthesizer?

Direct digital synthesizers (DDS) are digital devices. They are made up of a crystal oscillator, an NCO (numerically controlled oscillator) and a DAC (digital-to-analogue converter). DDS, in comparison to an analogue PLL synthesizer, offer improved phase noise and better control over the output where there are transitions between frequencies. They also offer better jitter performance.


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Omschrijving Prijs Category Conversion Rate Resolution Maximum Output Frequency Mounting Type Number of Elements per Chip Minimum Output Frequency Package Type Maximum Supply Current Pin Count Dimensions Maximum Input Frequency Height Length
RS-stocknr. 802-2014
FabrikantnummerNB3N3020DTG
FabrikantON Semiconductor
€ 7,05
Each
Aantal stuks
- - - 210MHz Surface Mount 1 - TSSOP 75 mA 16 5.1 x 4.5 x 1.05mm 210MHz 1.05mm 5.1mm
RS-stocknr. 145-4049
FabrikantnummerNB3N51032DTG
FabrikantON Semiconductor
€ 2,575
Each (In a Tube of 96)
Aantal stuks
- - - 200MHz Surface Mount 2 25MHz TSSOP 100 mA 16 5.1 x 4.5 x 1.05mm 25MHz 1.05mm 5.1mm
RS-stocknr. 801-0248
FabrikantnummerFS7140-02G-XTD
FabrikantON Semiconductor
€ 5,975
Each (In a Pack of 2)
Aantal stuks
- - - 150 MHz, 300MHz Surface Mount 1 0MHz SSOP 35 mA 16 6.33 x 5.38 x 1.78mm 35MHz 1.78mm 6.33mm
RS-stocknr. 787-6920
FabrikantnummerNB3N502DG
FabrikantON Semiconductor
€ 2,795
Each (In a Pack of 2)
Aantal stuks
- - - 190MHz Surface Mount 1 14MHz SOIC 20 mA 8 5 x 4 x 1.5mm 50MHz 1.5mm 5mm
RS-stocknr. 186-9049
FabrikantnummerFS6377-01IG-XTD
FabrikantON Semiconductor
€ 5,619
Each (In a Tube of 48)
Aantal stuks
- - - 150MHz Surface Mount 4 0.8MHz SOIC 43 mA 16 9.98 x 3.99 x 1.55mm 230MHz 1.55mm 9.98mm
RS-stocknr. 162-9621
FabrikantnummerP3MS650103H-4CR
FabrikantON Semiconductor
€ 0,593
Each (On a Reel of 3000)
Aantal stuks
- - - 60MHz Surface Mount 1 15MHz WDFN 9 mA 4 1 x 1.2 x 0.75mm 60MHz 0.75mm 1mm
RS-stocknr. 787-7012
FabrikantnummerP3MS650103H-4CR
FabrikantON Semiconductor
€ 1,304
Each (In a Pack of 5)
Aantal stuks
- - - 60MHz Surface Mount 1 15MHz WDFN 9 mA 4 1 x 1.2 x 0.75mm 60MHz 0.75mm 1mm
RS-stocknr. 161-2591
FabrikantnummerNB4N507ADG
FabrikantON Semiconductor
€ 2,793
Each (In a Tube of 48)
Aantal stuks
- - - 200MHz Surface Mount 1 50MHz SOIC 35 mA 16 10 x 4 x 1.5mm 27MHz 1.5mm 10mm
RS-stocknr. 145-5203
FabrikantnummerFS7140-02G-XTD
FabrikantON Semiconductor
€ 5,087
Each (In a Tube of 76)
Aantal stuks
- - - 150 MHz, 300MHz Surface Mount 1 0MHz SSOP 35 mA 16 6.33 x 5.38 x 1.78mm 35MHz 1.78mm 6.33mm
RS-stocknr. 162-8970
FabrikantnummerNB3N3020DTG
FabrikantON Semiconductor
€ 6,061
Each (In a Tube of 96)
Aantal stuks
- - - 210MHz Surface Mount 1 - TSSOP 75 mA 16 5.1 x 4.5 x 1.05mm 210MHz 1.05mm 5.1mm
RS-stocknr. 145-3853
FabrikantnummerNB3N502DG
FabrikantON Semiconductor
€ 2,375
Each (In a Tube of 98)
Aantal stuks
- - - 190MHz Surface Mount 1 14MHz SOIC 20 mA 8 5 x 4 x 1.5mm 50MHz 1.5mm 5mm
RS-stocknr. 145-2977
FabrikantnummerMC14046BDWG
FabrikantON Semiconductor
€ 0,59
Each (In a Tube of 47)
Aantal stuks
- - - 0.7MHz Surface Mount - 0.5MHz SOIC ±1 μA 16 10.45 x 7.6 x 2.4mm - 2.4mm 10.45mm
RS-stocknr. 806-3179
FabrikantnummerMC14046BDWG
FabrikantON Semiconductor
€ 0,59
Each (In a Pack of 20)
Aantal stuks
- - - 0.7MHz Surface Mount - 0.5MHz SOIC ±1 μA 16 10.45 x 7.6 x 2.4mm - 2.4mm 10.45mm
RS-stocknr. 787-6930
FabrikantnummerNB3N5573DTG
FabrikantON Semiconductor
€ 4,04
Each
Aantal stuks
- - - 200MHz Surface Mount 2 25MHz TSSOP 135 mA 16 5.1 x 4.5 x 1.05mm 25MHz 1.05mm 5.1mm
RS-stocknr. 145-3624
FabrikantnummerNBC12439AMNG
FabrikantON Semiconductor
€ 8,103
Each (In a Tube of 74)
Aantal stuks
- - - 800MHz Surface Mount 1 400MHz QFN 85 mA 32 5 x 5 x 0.95mm 20MHz 0.95mm 5mm
RS-stocknr. 170-3521
FabrikantnummerNB3N5573DTG
FabrikantON Semiconductor
€ 3,419
Each (In a Tube of 96)
Aantal stuks
- - - 200MHz Surface Mount 2 25MHz TSSOP 135 mA 16 5.1 x 4.5 x 1.05mm 25MHz 1.05mm 5.1mm
RS-stocknr. 802-2077
FabrikantnummerNBC12439AMNG
FabrikantON Semiconductor
€ 9,19
Each
Aantal stuks
- - - 800MHz Surface Mount 1 400MHz QFN 85 mA 32 5 x 5 x 0.95mm 20MHz 0.95mm 5mm
RS-stocknr. 163-2552
FabrikantnummerNB3N2302DG
FabrikantON Semiconductor
€ 1,809
Each (In a Tube of 98)
Aantal stuks
- - - 133MHz Surface Mount 2 10MHz SOIC 50 mA 8 5 x 4 x 1.5mm 133MHz 1.5mm 5mm
RS-stocknr. 827-0673
FabrikantnummerNB3N51032DTG
FabrikantON Semiconductor
€ 3,055
Each (In a Pack of 2)
Aantal stuks
- - - 200MHz Surface Mount 2 25MHz TSSOP 100 mA 16 5.1 x 4.5 x 1.05mm 25MHz 1.05mm 5.1mm
RS-stocknr. 186-9936
FabrikantnummerFS6377-01IG-XTD
FabrikantON Semiconductor
€ 5,70
Each
Aantal stuks
- - - 150MHz Surface Mount 4 0.8MHz SOIC 43 mA 16 9.98 x 3.99 x 1.55mm 230MHz 1.55mm 9.98mm