Clock Buffers

Clock buffers are semiconductor devices that fan out clock signals and isolates the source from the load. Clock buffers are known to have multiple controllable outputs as well as separate power supplies for outputs or for input/output allowing it to work as a level shifter.

What are clock buffers?

Clock buffers are devices clock buffers create multiple copies of input clocks for individual distribution across a PCB. They are comprised of single-ended output buffers and differential outputs. Single-ended output clock buffers are LVCMOS (Low voltage complementary metal-oxide-semiconductor) while differential output buffers may be LVPECL (Low Voltage Positive Emitter Coupled Logic), HSTL (High-speed transceiver logic) or LVDS (Low Voltage Differential Signaling).

Clock buffers don't alter the frequency properties of the input signal, which in turn minimalises the additive noise which is added to the input whilst in the buffering stage.

Types of clock buffers

Clock buffers are offered in an array of variations such as variations on the maximum operating input frequency that can range from 30 Mhz to 8 Ghz, variety on the maximum supply current it can support and the number of pins installed in the IC.

Some clock buffers feature ultra-low jitter and low skew clock distribution.

Applications of clock buffers

Clock buffers are widely used in applications such as;

  • High-speed instrumentation and line receivers
  • Converter clocking
  • Automated test equipment (ATE)
  • Wireless and wired communications
  • Medical and industrial imaging

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Description Prix Number of Elements per Chip Maximum Supply Current Maximum Input Frequency Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Supply Voltage Maximum Operating Temperature Maximum Output Frequency Minimum Operating Supply Voltage
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N° de stock RS 217-7813
Référence fabricant2305-1DCG
0,684 €
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6 32 mA 133MHz Surface Mount SOIC 8 - - - - - - - -
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N° de stock RS 217-7816
Référence fabricant2305-1HDCGI
0,596 €
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6 32 mA 133MHz Surface Mount SOIC 8 - - - - - - - -
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N° de stock RS 216-6243
Référence fabricant9DB403DGLFT
2,932 €
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- 115 mA 400MHz - TSSOP-28 28 - - - - - - - -
Nouveau
N° de stock RS 216-6251
Référence fabricant9DB833AGILF
3,698 €
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- 170 mA 166MHz - TSSOP-48 48 - - - - - - - -
N° de stock RS 162-8983
Référence fabricantNB7L1008MMNG
4,535 €
Each (In a Tube of 74)
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8 315 mA 8GHz Surface Mount QFN 32 5 x 5 x 0.95mm 5mm 5mm 0.95mm 3.6 V +85 °C - 2.375 V
Nouveau
N° de stock RS 217-7872
Référence fabricant5PB1110NDGI
2,625 €
Each (In a Tray of 100)
Unité
11 27 mA 200MHz Surface Mount SOIC 20 - - - - - - - -
N° de stock RS 162-8134
Référence fabricantCDCLVC1112PW
4,76 €
Each (In a Tube of 60)
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6 10 mA 180 MHz, 250 MHz Surface Mount TSSOP 24 7.9 x 4.5 x 1.05mm 7.9mm 4.5mm 1.05mm 2.7 V, 3.6 V +85 °C 180 MHz, 250 MHz 2.3 V, 3 V
Nouveau
N° de stock RS 216-6255
Référence fabricant9DBL0252BKILF
2,472 €
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- 20 mA 175MHz - VFQFPN-24 24 - - - - - - - -
N° de stock RS 194-8981
Référence fabricantCY22150FZXI
8,621 €
Each (In a Tube of 96)
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1 45 (Typ.) mA 133MHz Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 3.46 V +85 °C 166.6MHz 3.13 V
Nouveau
N° de stock RS 217-7838
Référence fabricant512MLF
2,416 €
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2 9 mA 50MHz Surface Mount SOIC 8 - - - - - - - -
N° de stock RS 194-9027
Référence fabricantCY2309SXC-1H
4,349 €
Each (In a Tube of 48)
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1 32 mA 133MHz Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 3.6 V +70 °C 133.3MHz 3 V
Nouveau
N° de stock RS 216-6264
Référence fabricant9DBL411BKILF
2,226 €
Each (In a Tube of 75)
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- 20 mA 150MHz - TSSOP 20 - - - - - - - -
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N° de stock RS 217-7835
Référence fabricant512MILF
2,713 €
Each (In a Tube of 97)
Unité
2 9 mA 50MHz Surface Mount SOIC 8 - - - - - - - -
N° de stock RS 162-8130
Référence fabricantCDCLVC1104PW
2,423 €
Each (In a Tube of 150)
Unité
6 10 mA 180 MHz, 250 MHz Surface Mount TSSOP 8 4.5 x 3.1 x 1.05mm 4.5mm 3.1mm 1.05mm 2.7 V, 3.6 V +85 °C 180 MHz, 250 MHz 2.3 V, 3 V
N° de stock RS 194-8987
Référence fabricantCY22392FXI
11,917 €
Each (In a Tube of 96)
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3 100 (Typ.) mA 166MHz Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 3.46 V +85 °C 166MHz 3.13 V
N° de stock RS 194-9014
Référence fabricantCY2308SXI-1
6,94 €
Each
Unité
1 45 mA 133.3MHz Surface Mount SOIC 16 9.98 x 3.98 x 1.47mm 9.98mm 3.98mm 1.47mm 3.6 V +85 °C 100MHz 3 V
N° de stock RS 865-2416
Référence fabricantSI53115-A01AGM
MarqueSilicon Labs
2,38 €
Each (In a Pack of 3)
Unité
- - - - - - - - - - - - - -
N° de stock RS 177-9796
Référence fabricantPL123-02NGI
MarqueMicrochip
1,986 €
Each (In a Pack of 5)
Unité
3 0.8 mA 200MHz Surface Mount DFN 6 1.35 x 2.05 x 0.55mm 1.35mm 2.05mm 0.55mm 4.6 V +85 °C - -0.5 V
N° de stock RS 194-9010
Référence fabricantCY2305CSXI-1H
5,92 €
Each
Unité
1 35 mA 133MHz Surface Mount SOIC 8 4.97 x 3.98 x 1.47mm 4.97mm 3.98mm 1.47mm 3.6 V +85 °C 133.33MHz 3 V
Nouveau
N° de stock RS 217-7825
Référence fabricant501MILF
1,705 €
Each (In a Tube of 97)
Unité
1 20 mA 50MHz Surface Mount SOIC 8 - - - - - - - -