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. 827-0673
FabrikantnummerNB3N51032DTG
FabrikantON Semiconductor
€ 3,35
Each (In a Pack of 2)
Aantal stuks
- - - 200MHz Surface Mount 2 25MHz TSSOP 100 mA 16 5.1 x 4.5 x 1.05mm 25MHz 1.05mm 5.1mm
RS-stocknr. 759-1483
FabrikantnummerAD9854ASVZ
FabrikantAnalog Devices
€ 44,30
Each
Aantal stuks
Direct Synthesizer 300Msps 12 bit - Surface Mount - - TQFP - 80 16.2 x 16.2 x 1.2mm - 1.2mm 16.2mm
RS-stocknr. 697-7476
FabrikantnummerAD9852ASVZ
FabrikantAnalog Devices
€ 42,65
Each
Aantal stuks
Direct Digital Synthesizer 300Msps 12 bit - Surface Mount - - TQFP - 80 14 x 14 x 1mm - 1mm 14mm
RS-stocknr. 169-8384
FabrikantnummerCS2000CP-CZZ
FabrikantCirrus Logic
€ 6,306
Each (In a Tube of 96)
Aantal stuks
- - - 75MHz Surface Mount 1 6MHz MSOP 18 mA 10 3 x 3 x 0.95mm 30MHz 0.95mm 3mm
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. 787-6930
FabrikantnummerNB3N5573DTG
FabrikantON Semiconductor
€ 4,04
Each
Aantal stuks
- - - 200MHz Surface Mount 2 25MHz TSSOP 135 mA 16 5.1 x 4.5 x 1.05mm 25MHz 1.05mm 5.1mm
RS-stocknr. 125-6940
FabrikantnummerCY22150FZXC
€ 6,825
Each (In a Pack of 2)
Aantal stuks
- - - - - - - - - - - - - -
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. 620-2173
FabrikantnummerCDCVF25084PW
€ 4,68
Each
Aantal stuks
- - - 180MHz Surface Mount 1 10MHz TSSOP - 16 5 x 4.4 x 1.15mm 45MHz 1.15mm 5mm
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. 145-3853
FabrikantnummerNB3N502DG
FabrikantON Semiconductor
€ 2,531
Each (In a Tube of 98)
Aantal stuks
- - - 190MHz Surface Mount 1 14MHz SOIC 20 mA 8 5 x 4 x 1.5mm 50MHz 1.5mm 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. 787-7012
FabrikantnummerP3MS650103H-4CR
FabrikantON Semiconductor
€ 1,304
Each (In a Pack of 5)
Aantal stuks
- - - 60MHz Surface Mount 1 15MHz WDFN 9 mA 4 1 x 1.2 x 0.75mm 60MHz 0.75mm 1mm
RS-stocknr. 169-8383
FabrikantnummerCS2300-CP-CZZ
FabrikantCirrus Logic
€ 4,501
Each (In a Tube of 96)
Aantal stuks
- - - 75MHz Surface Mount 1 6MHz MSOP ±10 mA 10 3 x 3 x 0.95mm 30MHz 0.95mm 3mm
RS-stocknr. 160-3297
FabrikantnummerHMC703LP4E
FabrikantAnalog Devices
€ 21,394
Each (On a Reel of 50)
Aantal stuks
- - - - Surface Mount 1 - QFN 95 mA 24 4.1 x 4.1 x 0.95mm 8000MHz 0.95mm 4.1mm
RS-stocknr. 922-2243
FabrikantnummerLMX2485ESQ/NOPB
€ 2,73
Each (On a Reel of 1000)
Aantal stuks
- - - 3000MHz Surface Mount 3 50MHz LLP 5 mA 24 4 x 4 x 0.8mm 110 MHz, 800MHz 0.8mm 4mm
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. 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. 538-6179
FabrikantnummerADF4360-1BCPZ
FabrikantAnalog Devices
€ 3,49
Each
Aantal stuks
- - - 2450MHz Surface Mount 1 2050MHz CP 24 - 24 4 x 4 x 0.83mm 250MHz 0.83mm 4mm
RS-stocknr. 496-9947
FabrikantnummerAD9834BRUZ
FabrikantAnalog Devices
€ 9,86
Each
Aantal stuks
Digital Synthesizer 75Msps 10 bit - Surface Mount - - TSSOP - 20 6.5 x 4.4 x 1.05mm - 1.05mm 6.5mm