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. 161-2895
FabrikantnummerSi5332D-C-GM3
FabrikantSilicon Labs
€ 5,68
Each
Aantal stuks
- - - 200MHz Surface Mount 14 5MHz QFN 70 mA 48 6 x 6 x 0.85mm 50 MHz, 170 MHz, 250MHz 0.85mm 6mm
RS-stocknr. 807-1791
FabrikantnummerADF4153YRUZ
FabrikantAnalog Devices
€ 4,05
Each
Aantal stuks
- - - 1750MHz Surface Mount 1 - TSSOP 24 mA 16 5.1 x 4.5 x 1.05mm 4GHz 1.05mm 5.1mm
RS-stocknr. 496-7812
FabrikantnummerAD9951YSVZ
FabrikantAnalog Devices
€ 24,35
Each
Aantal stuks
Digital Synthesizer 400Msps 14 bit - Surface Mount - - TQFP - 48 7 x 7 x 1mm - 1mm 7mm
RS-stocknr. 709-7559
FabrikantnummerADF4118BRUZ
FabrikantAnalog Devices
€ 3,87
Each
Aantal stuks
- - - - Surface Mount 1 - TSSOP 7.5 mA 16 5 x 4.4 x 1.05mm 3000MHz 1.05mm 5mm
RS-stocknr. 809-9364
FabrikantnummerAD9838BCPZ-RL7
FabrikantAnalog Devices
€ 5,22
Each
Aantal stuks
Direct Synthesizer 16Msps 10 bit 16MHz Surface Mount - - LFCSP WD - 20 4.1 x 4.1 x 0.75mm - 0.75mm 4.1mm
RS-stocknr. 865-2270
FabrikantnummerADF5355BCPZ
FabrikantAnalog Devices
€ 59,71
Each
Aantal stuks
- - - 13600MHz Surface Mount 3 54MHz LFCSP 85 mA 32 5.1 x 5.1 x 0.75mm 600MHz 0.75mm 5.1mm
RS-stocknr. 802-2014
FabrikantnummerNB3N3020DTG
FabrikantON Semiconductor
€ 7,20
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. 103-5689
Fabrikantnummer74HCT9046AD,112
FabrikantNexperia
€ 1,886
Each (In a Tube of 50)
Aantal stuks
- - - - Surface Mount 1 - SOIC - 16 10 x 4 x 1.45mm - 1.45mm 10mm
RS-stocknr. 801-0248
FabrikantnummerFS7140-02G-XTD
FabrikantON Semiconductor
€ 6,04
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. 160-2675
FabrikantnummerHMC822LP6CE
FabrikantAnalog Devices
€ 8,892
Each (On a Reel of 50)
Aantal stuks
- - - 3300MHz Surface Mount 1 2660MHz QFN 56 mA 40 6.1 x 6.1 x 0.9mm 1650MHz 0.9mm 6.1mm
RS-stocknr. 817-5994
FabrikantnummerCDCM61004RHBT
€ 7,39
1 Tape of 1
Tape(s)
- - - 683.264MHz Surface Mount 4 43.75MHz VQFN 65 mA 32 5.15 x 5.15 x 0.95mm 28.47MHz 0.95mm 5.15mm
RS-stocknr. 807-1794
FabrikantnummerADF4157BCPZ
FabrikantAnalog Devices
€ 6,42
Each
Aantal stuks
- - - 5800MHz Surface Mount 1 - LFCSP 29 mA 20 4.1 x 4.1 x 0.75mm 6GHz 0.75mm 4.1mm
RS-stocknr. 523-7516
FabrikantnummerAD9831ASTZ
FabrikantAnalog Devices
€ 12,90
Each
Aantal stuks
Digital Synthesizer 25000ksps 10 bit - Surface Mount - - LQFP - 48 7 x 7 x 1.4mm - 1.4mm 7mm
RS-stocknr. 178-6978
Fabrikantnummer74HCT4046AD,112
FabrikantNexperia
€ 0,577
Each (In a Tube of 50)
Aantal stuks
- - - - Surface Mount 1 - SOIC 50 mA 16 10 x 4 x 1.45mm - 1.45mm 10mm
RS-stocknr. 708-9782
FabrikantnummerADF4360-9BCPZ
FabrikantAnalog Devices
€ 6,48
Each
Aantal stuks
- - - 400MHz Surface Mount 1 1.1MHz CP 24 2 5 mA 24 4 x 4 x 0.83mm 250MHz 0.83mm 4mm
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. 880-6976
FabrikantnummerSi5341A-D-GM
FabrikantSilicon Labs
€ 16,59
Each
Aantal stuks
- - - 712.5MHz Surface Mount 1 0.0001MHz QFN 150 mA 64 9 x 9 x 0.85mm 750MHz 0.85mm 9mm
RS-stocknr. 709-7547
FabrikantnummerADF4116BRUZ
FabrikantAnalog Devices
€ 5,53
Each
Aantal stuks
- - - - Surface Mount 1 - TSSOP 5.5 mA 16 5 x 4.4 x 1.05mm 550MHz 1.05mm 5mm
RS-stocknr. 708-9827
FabrikantnummerADN2814ACPZ
FabrikantAnalog Devices
€ 19,58
Each
Aantal stuks
- - - - Surface Mount 1 - LFCSP 145 mA 32 5 x 5 x 0.83mm 160MHz 0.83mm 5mm