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.


...
Read more Read less

Filters

Viewing 161 - 178 of 178 products
Results per page
Description Price 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 Stock No. 161-2838
Mfr. Part No.Si52208-A01AGM
SGD4.699
Each (In a Tray of 490)
units
- - - 100MHz Surface Mount 4 - QFN 63 mA 48 6 x 6 x 0.85mm 25MHz 0.85mm 6mm
RS Stock No. 145-3624
Mfr. Part No.NBC12439AMNG
SGD14.16
Each (In a Tube of 74)
units
- - - 800MHz Surface Mount 1 400MHz QFN 85 mA 32 5 x 5 x 0.95mm 20MHz 0.95mm 5mm
RS Stock No. 161-2843
Mfr. Part No.Si5332A-C-GM2
SGD18.68
Each (In a Tray of 490)
units
- - - 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 Stock No. 662-4605
Mfr. Part No.CDCE706PW
SGD15.93
Each
units
- - - - Surface Mount 3 - TSSOP 115 mA 20 6.5 x 4.4 x 1.15mm 200MHz 1.15mm 6.5mm
RS Stock No. 912-6319
Mfr. Part No.AD9910BSVZ
SGD85.964
Each (In a Tray of 90)
units
Digital Synthesizer 1000000ksps 14 bit - Surface Mount - - TQFP - 100 14 x 14 x 1mm - 1mm 14mm
RS Stock No. 186-9936
Mfr. Part No.FS6377-01IG-XTD
SGD15.90
Each
units
- - - 150MHz Surface Mount 4 0.8MHz SOIC 43 mA 16 9.98 x 3.99 x 1.55mm 230MHz 1.55mm 9.98mm
RS Stock No. 162-5220
Mfr. Part No.PLL1708DBQ
SGD7.342
Each (In a Tube of 50)
units
- - - - Surface Mount 2 - SSOP 25 mA 20 8.75 x 4 x 1.5mm 27.27MHz 1.5mm 8.75mm
RS Stock No. 145-5203
Mfr. Part No.FS7140-02G-XTD
SGD9.09
Each (In a Tube of 76)
units
- - - 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 Stock No. 880-6976
Mfr. Part No.Si5341A-D-GM
SGD31.00
Each
units
- - - 712.5MHz Surface Mount 1 0.0001MHz QFN 150 mA 64 9 x 9 x 0.85mm 750MHz 0.85mm 9mm
RS Stock No. 125-6940
Mfr. Part No.CY22150FZXC
SGD13.305
Each (In a Pack of 2)
units
- - - - - - - - - - - - - -
RS Stock No. 801-0248
Mfr. Part No.FS7140-02G-XTD
SGD11.76
Each (In a Pack of 2)
units
- - - 150 MHz, 300MHz Surface Mount 1 0MHz SSOP 35 mA 16 6.33 x 5.38 x 1.78mm 35MHz 1.78mm 6.33mm
New
RS Stock No. 216-6267
Mfr. Part No.9FG104EGILFT
SGD9.09
Each (In a Pack of 2)
units
- - - - - - - TSSOP 109 mA 28 - 400MHz - -
RS Stock No. 162-8970
Mfr. Part No.NB3N3020DTG
SGD10.61
Each (In a Tube of 96)
units
- - - 210MHz Surface Mount 1 - TSSOP 75 mA 16 5.1 x 4.5 x 1.05mm 210MHz 1.05mm 5.1mm
RS Stock No. 807-1788
Mfr. Part No.ADF4153ABRUZ
SGD8.13
Each (In a Pack of 2)
units
- - - 4000MHz Surface Mount - - TSSOP 100 μA 16 5.1 x 4.5 x 1.05mm 250MHz 1.05mm 5.1mm
RS Stock No. 162-9621
Mfr. Part No.P3MS650103H-4CR
SGD1.335
Each (On a Reel of 3000)
units
- - - 60MHz Surface Mount 1 15MHz WDFN 9 mA 4 1 x 1.2 x 0.75mm 60MHz 0.75mm 1mm
RS Stock No. 807-1798
Mfr. Part No.ADF4159CCPZ
SGD23.71
Each
units
- - - 2GHz Surface Mount 1 - LFCSP 40 mA 24 4.1 x 4.1 x 0.75mm 13GHz 0.75mm 4.1mm
RS Stock No. 160-3365
Mfr. Part No.AD9838BCPZ-RL7
SGD5.286
Each (On a Reel of 1500)
units
Direct Synthesizer 16Msps 10 bit 16MHz Surface Mount - - LFCSP WD - 20 4.1 x 4.1 x 0.75mm - 0.75mm 4.1mm
New
RS Stock No. 217-7875
Mfr. Part No.5V41066PGGI
SGD4.804
Each (In a Pack of 5)
units
Digital Synthesiser - - 200MHz Surface Mount 4 - TSSOP - 20 - - - -