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

61 - 80 van 177 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. 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. 162-8143
FabrikantnummerCDCM61004RHBT
5,276 €
Each (On a Reel of 250)
Aantal stuks
- - - 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. 708-9827
FabrikantnummerADN2814ACPZ
FabrikantAnalog Devices
19,58 €
Each
Aantal stuks
- - - - Surface Mount 1 - LFCSP 145 mA 32 5 x 5 x 0.83mm 160MHz 0.83mm 5mm
RS-stocknr. 709-2637
FabrikantnummerPLL1707DBQ
4,60 €
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. 483-6774
Fabrikantnummer74HCT9046AD,112
FabrikantNexperia
2,232 €
Each (In a Pack of 5)
Aantal stuks
- - - - Surface Mount 1 - SOIC - 16 10 x 4 x 1.45mm - 1.45mm 10mm
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. 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. 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. 496-9616
FabrikantnummerAD9858BSVZ
FabrikantAnalog Devices
75,50 €
Each
Aantal stuks
Digital Synthesizer 1000000ksps 10 bit - Surface Mount - - TQFP - 100 14 x 14 x 1mm - 1mm 14mm
RS-stocknr. 162-8142
FabrikantnummerCDCM61002RHBT
4,072 €
Each (On a Reel of 250)
Aantal stuks
- - - 683.264MHz Surface Mount 2 43.75MHz VQFN 65 mA 32 5.15 x 5.15 x 0.95mm 28.47MHz 0.95mm 5.15mm
RS-stocknr. 412-309
FabrikantnummerAD9835BRUZ
FabrikantAnalog Devices
11,88 €
Each
Aantal stuks
Digital Synthesizer 50Msps 10 bit - Surface Mount - - TSSOP - 16 5 x 4.4 x 1.05mm - 1.05mm 5mm
RS-stocknr. 161-2838
FabrikantnummerSi52208-A01AGM
FabrikantSilicon Labs
2,807 €
Each (In a Tray of 490)
Aantal stuks
- - - 100MHz Surface Mount 4 - QFN 63 mA 48 6 x 6 x 0.85mm 25MHz 0.85mm 6mm
RS-stocknr. 162-6986
FabrikantnummerCDCE706PW
7,046 €
Each (In a Tube of 70)
Aantal stuks
- - - - Surface Mount 3 - TSSOP 115 mA 20 6.5 x 4.4 x 1.15mm 200MHz 1.15mm 6.5mm
RS-stocknr. 921-2820
FabrikantnummerLMH1982SQE/NOPB
15,595 €
Each (On a Reel of 250)
Aantal stuks
- - - 148.5MHz Surface Mount 1 - WQFN 70 mA 32 5 x 5 x 0.8mm 67.5MHz 0.8mm 5mm
RS-stocknr. 496-9947
FabrikantnummerAD9834BRUZ
FabrikantAnalog Devices
9,57 €
Each
Aantal stuks
Digital Synthesizer 75Msps 10 bit - Surface Mount - - TSSOP - 20 6.5 x 4.4 x 1.05mm - 1.05mm 6.5mm
Nieuw
RS-stocknr. 217-7874
Fabrikantnummer5V41066PGGI
2,348 €
Each (In a Tube of 74)
Aantal stuks
Digital Synthesiser - - 200MHz Surface Mount 4 - TSSOP - 20 - - - -
RS-stocknr. 523-8222
FabrikantnummerAD9830ASTZ
FabrikantAnalog Devices
23,37 €
Each
Aantal stuks
Digital Synthesizer 50Msps 10 bit - Surface Mount - - LQFP - 48 7 x 7 x 1.4mm - 1.4mm 7mm
RS-stocknr. 787-6920
FabrikantnummerNB3N502DG
FabrikantON Semiconductor
2,975 €
Each (In a Pack of 2)
Aantal stuks
- - - 190MHz Surface Mount 1 14MHz SOIC 20 mA 8 5 x 4 x 1.5mm 50MHz 1.5mm 5mm
RS-stocknr. 189-7178
FabrikantnummerDS1080LU+
FabrikantMaxim Integrated
1,719 €
Each (In a Tube of 50)
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. 923-6778
FabrikantnummerTLC2932AIPW
1,691 €
Each (In a Tube of 90)
Aantal stuks
- - - - Surface Mount 1 - TSSOP - 14 5 x 4.4 x 1.15mm - 1.15mm 5mm