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.


...
Lees meer Lees minder

Filters

21 - 40 van 183 producten worden weergegeven
Resultaten per pagina
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. 807-1791
FabrikantnummerADF4153YRUZ
FabrikantAnalog Devices
4,05 €
Each
Aantal stuks
- - - 1750MHz Surface Mount 1 - TSSOP 24 mA 16 5.1 x 4.5 x 1.05mm 4GHz 1.05mm 5.1mm
RS-stocknr. 660-7755
FabrikantnummerPLL1708DBQ
2,10 €
Each
Aantal stuks
- - - - Surface Mount 2 - SSOP 25 mA 20 8.75 x 4 x 1.5mm 27.27MHz 1.5mm 8.75mm
RS-stocknr. 496-7812
FabrikantnummerAD9951YSVZ
FabrikantAnalog Devices
24,35 €
Each
Aantal stuks
Digital Synthesizer 400Msps 14 bit - Surface Mount - - TQFP - 48 7 x 7 x 1mm - 1mm 7mm
Nieuw
RS-stocknr. 216-6135
Fabrikantnummer511MLFT
1,017 €
Each (On a Reel of 3000)
Aantal stuks
- - - - Surface Mount - - SOIC 25 mA 8 - 200MHz - -
RS-stocknr. 413-011
FabrikantnummerAD9851BRSZ
FabrikantAnalog Devices
26,49 €
Each
Aantal stuks
Digital Synthesizer 180000ksps 10 bit - Surface Mount - - SSOP - 28 10.2 x 5.3 x 1.75mm - 1.75mm 10.2mm
RS-stocknr. 716-5804
FabrikantnummerCS2300-CP-CZZ
FabrikantCirrus Logic
5,22 €
Each
Aantal stuks
- - - 75MHz Surface Mount 1 6MHz MSOP ±10 mA 10 3 x 3 x 0.95mm 30MHz 0.95mm 3mm
Nieuw
RS-stocknr. 216-6219
Fabrikantnummer871S1022EKLF
7,785 €
Each (In a Tray of 490)
Aantal stuks
- - - - - - - VFQFPN-32 100 mA 32 - 100MHz - -
RS-stocknr. 709-7461
FabrikantnummerAD9834CRUZ
FabrikantAnalog Devices
10,22 €
Each
Aantal stuks
Digital Synthesizer 75Msps 10 bit - Surface Mount - - TSSOP - 20 6.5 x 4.4 x 1.05mm - 1.05mm 6.5mm
RS-stocknr. 697-7568
FabrikantnummerADF4360-7BCPZ
FabrikantAnalog Devices
5,81 €
Each
Aantal stuks
- - - 1800MHz Surface Mount 1 350MHz CP 24 - 24 4 x 4 x 0.83mm 250MHz 0.83mm 4mm
RS-stocknr. 662-4605
FabrikantnummerCDCE706PW
8,11 €
Each
Aantal stuks
- - - - Surface Mount 3 - TSSOP 115 mA 20 6.5 x 4.4 x 1.15mm 200MHz 1.15mm 6.5mm
RS-stocknr. 183-2193
FabrikantnummerAD9901KPZ
FabrikantAnalog Devices
8,64 €
Each
Aantal stuks
- - - - Surface Mount 1 - PLCC 54 mA 20 9.04 x 9.04 x 3.94mm 200MHz 3.94mm 9.04mm
RS-stocknr. 662-4586
FabrikantnummerCD74HC7046AM
2,486 €
Each (In a Pack of 5)
Aantal stuks
- - - - Surface Mount 1 - SOIC - 16 9.9 x 3.91 x 1.58mm - 1.58mm 9.9mm
RS-stocknr. 909-3468
FabrikantnummerHMC703LP4E
FabrikantAnalog Devices
24,29 €
Each
Aantal stuks
- - - - Surface Mount 1 - QFN 95 mA 24 4.1 x 4.1 x 0.95mm 8000MHz 0.95mm 4.1mm
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. 368-7521
FabrikantnummerHEF4046BT,652
FabrikantNexperia
0,39 €
Each (In a Tube of 50)
Aantal stuks
- - - - Surface Mount 1 - SOIC - 16 10 x 4 x 1.45mm - 1.45mm 10mm
RS-stocknr. 189-8648
FabrikantnummerDS1080LU+
FabrikantMaxim Integrated
2,034 €
Each (In a Pack of 5)
Aantal stuks
- - - 134MHz Surface Mount 1 16MHz μSOP 15 mA 8 3.1 x 3.1 x 0.95mm 33.4MHz 0.95mm 3.1mm
RS-stocknr. 145-4049
FabrikantnummerNB3N51032DTG
FabrikantON Semiconductor
2,853 €
Each (In a Tube of 96)
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. 807-1776
FabrikantnummerADF4151BCPZ
FabrikantAnalog Devices
5,11 €
Each
Aantal stuks
- - - 750MHz Surface Mount 1 - LFCSP 50 mA 32 5.1 x 5.1 x 0.75mm 3.5GHz 0.75mm 5.1mm
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
Nieuw
RS-stocknr. 216-6136
Fabrikantnummer511MLFT
2,226 €
Each (In a Pack of 5)
Aantal stuks
- - - - Surface Mount - - SOIC 25 mA 8 - 200MHz - -