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 121 - 140 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. 161-2872
Mfr. Part No.Si5332A-C-GM2
SGD18.68
Each
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. 709-6011
Mfr. Part No.AD5930YRUZ
SGD22.75
Each
units
- - - - Surface Mount - - TSSOP - 20 6.5 x 7.6 x 1.05mm - 1.05mm 6.5mm
RS Stock No. 160-2675
Mfr. Part No.HMC822LP6CE
SGD22.33
Each (On a Reel of 50)
units
- - - 3300MHz Surface Mount 1 2660MHz QFN 56 mA 40 6.1 x 6.1 x 0.9mm 1650MHz 0.9mm 6.1mm
RS Stock No. 709-5143
Mfr. Part No.ADF4156BRUZ
SGD9.86
Each
units
- - - - Surface Mount 1 - CP 20 1 32 mA 16 5 x 4.4 x 1.05mm 6000MHz 1.05mm 5mm
RS Stock No. 523-8222
Mfr. Part No.AD9830ASTZ
SGD42.17
Each
units
Digital Synthesizer 50Msps 10 bit - Surface Mount - - LQFP - 48 7 x 7 x 1.4mm - 1.4mm 7mm
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. 413-011
Mfr. Part No.AD9851BRSZ
SGD47.61
Each
units
Digital Synthesizer 180000ksps 10 bit - Surface Mount - - SSOP - 28 10.2 x 5.3 x 1.75mm - 1.75mm 10.2mm
RS Stock No. 108-353
Mfr. Part No.ADF4252BCPZ
SGD9.51
Each
units
- - - - Surface Mount 2 - CP 24 16 mA 24 4 x 4 x 0.83mm 3000MHz 0.83mm 4mm
RS Stock No. 368-7521
Mfr. Part No.HEF4046BT,652
BrandNexperia
SGD0.623
Each (In a Tube of 50)
units
- - - - Surface Mount 1 - SOIC - 16 10 x 4 x 1.45mm - 1.45mm 10mm
RS Stock No. 161-2870
Mfr. Part No.Si5332A-C-GM1
SGD17.82
Each
units
- - - 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 Stock No. 183-2180
Mfr. Part No.AD9833BRMZ
SGD16.05
Each
units
Direct Digital Synthesizer 25Msps 10 bit 12.5MHz Surface Mount - - MSOP - 10 3.1 x 3.1 x 0.95mm - 0.95mm 3.1mm
RS Stock No. 662-4589
Mfr. Part No.CD74HC4046AE
SGD0.931
Each (In a Pack of 10)
units
- - - - Through Hole 1 - PDIP - 16 19.3 x 6.35 x 4.57mm - 4.57mm 19.3mm
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. 497-1760
Mfr. Part No.ADF4106BRUZ
SGD9.31
Each
units
- - - 325MHz Surface Mount 1 - CP 20 13 mA 16 5 x 4.4 x 1.05mm 6000MHz 1.05mm 5mm
New
RS Stock No. 216-6135
Mfr. Part No.511MLFT
SGD1.745
Each (On a Reel of 3000)
units
- - - - Surface Mount - - SOIC 25 mA 8 - 200MHz - -
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. 709-2637
Mfr. Part No.PLL1707DBQ
SGD8.00
Each
units
- - - - Surface Mount 2 - SSOP 25 mA 20 8.75 x 4 x 1.5mm 27.27MHz 1.5mm 8.75mm
RS Stock No. 145-3853
Mfr. Part No.NB3N502DG
SGD4.28
Each (In a Tube of 98)
units
- - - 190MHz Surface Mount 1 14MHz SOIC 20 mA 8 5 x 4 x 1.5mm 50MHz 1.5mm 5mm
RS Stock No. 189-7178
Mfr. Part No.DS1080LU+
SGD3.402
Each (In a Tube of 50)
units
- - - 134MHz Surface Mount 1 16MHz μSOP 15 mA 8 3.1 x 3.1 x 0.95mm 33.4MHz 0.95mm 3.1mm
RS Stock No. 161-2866
Mfr. Part No.Si52204-A01AGM
SGD4.40
Each (In a Pack of 2)
units
- - - 100MHz Surface Mount 3 - QFN 44 mA 32 5 x 5 x 0.85mm 25MHz 0.85mm 5mm