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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Beskrivning Pris 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-artikelnummer 412-933
Tillv. art.nrAD9850BRSZ
VarumärkeAnalog Devices
250,28 kr
Each
Enheter
Digital Synthesizer 125000ksps 10 bit - Surface Mount - - SSOP - 28 10.2 x 5.3 x 1.75mm - 1.75mm 10.2mm
RS-artikelnummer 759-1483
Tillv. art.nrAD9854ASVZ
VarumärkeAnalog Devices
472,42 kr
Each
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Direct Synthesizer 300Msps 12 bit - Surface Mount - - TQFP - 80 16.2 x 16.2 x 1.2mm - 1.2mm 16.2mm
RS-artikelnummer 697-7476
Tillv. art.nrAD9852ASVZ
VarumärkeAnalog Devices
454,82 kr
Each
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Direct Digital Synthesizer 300Msps 12 bit - Surface Mount - - TQFP - 80 14 x 14 x 1mm - 1mm 14mm
RS-artikelnummer 170-3521
Tillv. art.nrNB3N5573DTG
VarumärkeON Semiconductor
36,458 kr
Each (In a Tube of 96)
Enheter
- - - 200MHz Surface Mount 2 25MHz TSSOP 135 mA 16 5.1 x 4.5 x 1.05mm 25MHz 1.05mm 5.1mm
RS-artikelnummer 787-6930
Tillv. art.nrNB3N5573DTG
VarumärkeON Semiconductor
43,08 kr
Each
Enheter
- - - 200MHz Surface Mount 2 25MHz TSSOP 135 mA 16 5.1 x 4.5 x 1.05mm 25MHz 1.05mm 5.1mm
RS-artikelnummer 662-3961
Tillv. art.nrCD74HC4046AM96
VarumärkeTexas Instruments
4,33 kr
Each (In a Pack of 10)
Enheter
- - - - Surface Mount 1 - SOIC - 16 9.9 x 3.91 x 1.58mm - 1.58mm 9.9mm
RS-artikelnummer 708-9934
Tillv. art.nrAD9854ASTZ
VarumärkeAnalog Devices
374,84 kr
Each
Enheter
Digital Synthesizer 200Msps 12 bit - Surface Mount - - LQFP - 80 14 x 14 x 1.4mm - 1.4mm 14mm
RS-artikelnummer 880-6976
Tillv. art.nrSi5341A-D-GM
VarumärkeSilicon Labs
176,92 kr
Each
Enheter
- - - 712.5MHz Surface Mount 1 0.0001MHz QFN 150 mA 64 9 x 9 x 0.85mm 750MHz 0.85mm 9mm
RS-artikelnummer 162-6951
Tillv. art.nrCD74HC4046AM96
VarumärkeTexas Instruments
2,035 kr
Each (On a Reel of 2500)
Enheter
- - - - Surface Mount 1 - SOIC - 16 9.9 x 3.91 x 1.58mm - 1.58mm 9.9mm
RS-artikelnummer 523-7869
Tillv. art.nrAD9832BRUZ
VarumärkeAnalog Devices
110,16 kr
Each
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Digital Synthesizer 25000ksps 10 bit - Surface Mount - - TSSOP - 16 5 x 4.4 x 1.05mm - 1.05mm 5mm
RS-artikelnummer 496-7812
Tillv. art.nrAD9951YSVZ
VarumärkeAnalog Devices
259,67 kr
Each
Enheter
Digital Synthesizer 400Msps 14 bit - Surface Mount - - TQFP - 48 7 x 7 x 1mm - 1mm 7mm
RS-artikelnummer 759-1503
Tillv. art.nrAD9911BCPZ
VarumärkeAnalog Devices
323,44 kr
Each
Enheter
Direct Synthesizer 500Msps 32 bit - Surface Mount - - LFCSP VQ - 56 8 x 8 x 1mm - 1mm 8mm
RS-artikelnummer 413-011
Tillv. art.nrAD9851BRSZ
VarumärkeAnalog Devices
274,28 kr
Each
Enheter
Digital Synthesizer 180000ksps 10 bit - Surface Mount - - SSOP - 28 10.2 x 5.3 x 1.75mm - 1.75mm 10.2mm
RS-artikelnummer 523-6383
Tillv. art.nrADF4113BRUZ
VarumärkeAnalog Devices
53,96 kr
Each
Enheter
- - - - Surface Mount 1 - CP 20 11 mA 16 5 x 4.4 x 1.05mm 4000MHz 1.05mm 5mm
RS-artikelnummer 538-5378
Tillv. art.nrAD9859YSVZ
VarumärkeAnalog Devices
225,86 kr
Each
Enheter
Digital Synthesizer 400Msps 10 bit - Surface Mount - - TQFP - 48 7 x 7 x 1mm - 1mm 7mm
RS-artikelnummer 716-5808
Tillv. art.nrCS2000CP-CZZ
VarumärkeCirrus Logic
75,61 kr
Each
Enheter
- - - 75MHz Surface Mount 1 6MHz MSOP 18 mA 10 3 x 3 x 0.95mm 30MHz 0.95mm 3mm
RS-artikelnummer 145-2977
Tillv. art.nrMC14046BDWG
VarumärkeON Semiconductor
6,287 kr
Each (In a Tube of 47)
Enheter
- - - 0.7MHz Surface Mount - 0.5MHz SOIC ±1 μA 16 10.45 x 7.6 x 2.4mm - 2.4mm 10.45mm
RS-artikelnummer 796-0101
Tillv. art.nrSi5326C-C-GM
VarumärkeSilicon Labs
173,78 kr
Each
Enheter
- - - 346MHz Surface Mount 4 2kHz QFN 279 mA 36 6 x 6 x 0.85mm 710MHz 0.85mm 6mm
RS-artikelnummer 817-5994
Tillv. art.nrCDCM61004RHBT
VarumärkeTexas Instruments
78,81 kr
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-artikelnummer 709-6011
Tillv. art.nrAD5930YRUZ
VarumärkeAnalog Devices
127,97 kr
Each
Enheter
- - - - Surface Mount - - TSSOP - 20 6.5 x 7.6 x 1.05mm - 1.05mm 6.5mm