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. 161-2879
FabrikantnummerSi5332B-C-GM2
FabrikantSilicon Labs
€ 6,55
Each
Aantal stuks
- - - 200MHz Surface Mount 10 5MHz QFN 70 mA 40 6 x 6 x 0.85mm 50 MHz, 170 MHz, 250MHz 0.85mm 6mm
RS-stocknr. 168-9977
FabrikantnummerSI5356A-B-GM
FabrikantSilicon Labs
€ 3,712
Each (In a Tray of 75)
Aantal stuks
- - - 200MHz Surface Mount - 1MHz QFN 60 mA 24 4 x 4 x 0.85mm 200MHz 0.85mm 4mm
RS-stocknr. 161-2846
FabrikantnummerSi5332B-C-GM2
FabrikantSilicon Labs
€ 6,387
Each (In a Tray of 490)
Aantal stuks
- - - 200MHz Surface Mount 10 5MHz QFN 70 mA 40 6 x 6 x 0.85mm 50 MHz, 170 MHz, 250MHz 0.85mm 6mm
RS-stocknr. 161-2853
FabrikantnummerSi5332D-C-GM3
FabrikantSilicon Labs
€ 6,269
Each (In a Tray of 490)
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. 161-2870
FabrikantnummerSi5332A-C-GM1
FabrikantSilicon Labs
€ 9,72
Each
Aantal stuks
- - - 312.5MHz Surface Mount 7 5MHz QFN 70 mA 32 5 x 5 x 0.85mm 50 MHz, 170 MHz, 250MHz 0.85mm 5mm
RS-stocknr. 161-2883
FabrikantnummerSi5332C-C-GM1
FabrikantSilicon Labs
€ 5,33
Each
Aantal stuks
- - - 312.5MHz Surface Mount 7 5MHz QFN 70 mA 32 5 x 5 x 0.85mm 50 MHz, 170 MHz, 250MHz 0.85mm 5mm
RS-stocknr. 161-2839
FabrikantnummerSi52204-A01AGM
FabrikantSilicon Labs
€ 0,833
Each (In a Tube of 60)
Aantal stuks
- - - 100MHz Surface Mount 3 - QFN 44 mA 32 5 x 5 x 0.85mm 25MHz 0.85mm 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. 173-2768
FabrikantnummerSI5326C-C-GM
FabrikantSilicon Labs
€ 19,621
Each (In a Tray of 490)
Aantal stuks
- - - 346MHz Surface Mount 4 2kHz QFN 279 mA 36 6 x 6 x 0.85mm 710MHz 0.85mm 6mm
RS-stocknr. 161-2843
FabrikantnummerSi5332A-C-GM2
FabrikantSilicon Labs
€ 10,501
Each (In a Tray of 490)
Aantal stuks
- - - 312.5MHz Surface Mount 10 5MHz QFN 70 mA 40 6 x 6 x 0.85mm 50 MHz, 170 MHz, 250MHz 0.85mm 6mm
RS-stocknr. 161-2842
FabrikantnummerSi5332A-C-GM1
FabrikantSilicon Labs
€ 8,946
Each (In a Tray of 490)
Aantal stuks
- - - 312.5MHz Surface Mount 7 5MHz QFN 70 mA 32 5 x 5 x 0.85mm 50 MHz, 170 MHz, 250MHz 0.85mm 5mm
RS-stocknr. 161-2872
FabrikantnummerSi5332A-C-GM2
FabrikantSilicon Labs
€ 10,35
Each
Aantal stuks
- - - 312.5MHz Surface Mount 10 5MHz QFN 70 mA 40 6 x 6 x 0.85mm 50 MHz, 170 MHz, 250MHz 0.85mm 6mm
RS-stocknr. 161-2838
FabrikantnummerSi52208-A01AGM
FabrikantSilicon Labs
€ 2,807
Each (In a Tray of 490)
Aantal stuks
- - - 100MHz Surface Mount 4 - QFN 63 mA 48 6 x 6 x 0.85mm 25MHz 0.85mm 6mm
RS-stocknr. 161-2848
FabrikantnummerSi5332C-C-GM1
FabrikantSilicon Labs
€ 6,724
Each (In a Tray of 490)
Aantal stuks
- - - 312.5MHz Surface Mount 7 5MHz QFN 70 mA 32 5 x 5 x 0.85mm 50 MHz, 170 MHz, 250MHz 0.85mm 5mm
RS-stocknr. 161-2864
FabrikantnummerSi52208-A01AGM
FabrikantSilicon Labs
€ 3,475
Each (In a Pack of 2)
Aantal stuks
- - - 100MHz Surface Mount 4 - QFN 63 mA 48 6 x 6 x 0.85mm 25MHz 0.85mm 6mm
RS-stocknr. 161-2866
FabrikantnummerSi52204-A01AGM
FabrikantSilicon Labs
€ 0,85
Each (In a Pack of 2)
Aantal stuks
- - - 100MHz Surface Mount 3 - QFN 44 mA 32 5 x 5 x 0.85mm 25MHz 0.85mm 5mm
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. 796-0344
FabrikantnummerSi5356A-B-GM
FabrikantSilicon Labs
€ 4,73
Each (In a Pack of 2)
Aantal stuks
- - - 200MHz Surface Mount - 1MHz QFN 60 mA 24 4 x 4 x 0.85mm 200MHz 0.85mm 4mm
RS-stocknr. 796-0101
FabrikantnummerSi5326C-C-GM
FabrikantSilicon Labs
€ 24,72
Each
Aantal stuks
- - - 346MHz Surface Mount 4 2kHz QFN 279 mA 36 6 x 6 x 0.85mm 710MHz 0.85mm 6mm