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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Beskrivning Pris 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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RS-artikelnummer 217-7838
Tillv. art.nr512MLF
28,74 kr
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2 9 mA 50MHz Surface Mount SOIC 8 - - - - - - - -
RS-artikelnummer 162-8976
Tillv. art.nrNB6L14SMNG
VarumärkeON Semiconductor
39,536 kr
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4 100 mA 2GHz Surface Mount QFN 16 3 x 3 x 0.95mm 3mm 3mm 0.95mm 3.8 V +85 °C - -
RS-artikelnummer 194-9004
Tillv. art.nrCY2304SXI-1
112,93 kr
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1 45 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 133.3MHz 3 V
RS-artikelnummer 177-9671
Tillv. art.nrSY54020ARMG
VarumärkeMicrochip
46,146 kr
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6 56 mA 3.2GHz Surface Mount MLF 16 3 x 3 x 0.8mm 3mm 3mm 0.8mm 2.62 V +85 °C - 2.37 V
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RS-artikelnummer 217-7839
Tillv. art.nr524SDCGI
24,107 kr
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5 22 mA 200MHz Surface Mount SOIC 8 - - - - - - - -
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RS-artikelnummer 217-7845
Tillv. art.nr551MLF
19,034 kr
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5 18 mA 160MHz Surface Mount SOIC 8 - - - - - - - -
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RS-artikelnummer 216-6160
Tillv. art.nr574MILF
88,919 kr
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- 36 mA 160MHz - SOIC-8 8 - - - - - - - -
RS-artikelnummer 787-6924
Tillv. art.nrNB3N551DG
VarumärkeON Semiconductor
15,995 kr
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4 40 mA 180MHz Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.5 V +85 °C 180MHz 3 V
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RS-artikelnummer 216-6260
Tillv. art.nr9DBL0851BKILF
28,586 kr
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- 25 mA 200MHz - VFQFPN 48 - - - - - - - -
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RS-artikelnummer 217-7851
Tillv. art.nr552G-02ILN
56,19 kr
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8 35 mA 200MHz Surface Mount SOIC 8 - - - - - - - -
RS-artikelnummer 787-6936
Tillv. art.nrNB3N551MNR4G
VarumärkeON Semiconductor
16,934 kr
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4 40 mA 180MHz Surface Mount DFN 8 2 x 2 x 0.95mm 2mm 2mm 0.95mm 5.5 V +85 °C 180MHz 3 V
RS-artikelnummer 194-9010
Tillv. art.nrCY2305CSXI-1H
63,13 kr
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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
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RS-artikelnummer 217-7830
Tillv. art.nr501MLF
17,314 kr
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1 20 mA 50MHz Surface Mount SOIC 8 - - - - - - - -
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RS-artikelnummer 217-7840
Tillv. art.nr524SDCGI
28,604 kr
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5 22 mA 200MHz Surface Mount SOIC 8 - - - - - - - -
RS-artikelnummer 796-0448
Tillv. art.nrSi53159-A01AGM
VarumärkeSilicon Labs
32,205 kr
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9 60 mA 210MHz Surface Mount QFN 48 6 x 6 x 0.75mm 5mm 6mm 0.75mm 3.465 V +85 °C - 3.135 V
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RS-artikelnummer 216-6133
Tillv. art.nr2305-1DCG8
4,071 kr
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- 32 mA 133MHz - SOIC-8 8 - - - - - - - -
RS-artikelnummer 817-5941
Tillv. art.nrCDCLVC1104PW
VarumärkeTexas Instruments
35,256 kr
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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
RS-artikelnummer 194-8989
Tillv. art.nrCY22393FXI
129,445 kr
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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
RS-artikelnummer 121-6394
Tillv. art.nrNB3N2304NZDTG
VarumärkeON Semiconductor
13,613 kr
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4 25 mA 140MHz Surface Mount TSSOP 8 3.1 x 4.5 x 0.95mm 3.1mm 4.5mm 0.95mm 3.6 V +85 °C 140MHz 3 V
RS-artikelnummer 787-6914
Tillv. art.nrNB3L553DG
VarumärkeON Semiconductor
18,34 kr
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4 30 mA 200MHz Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 5.25 V +85 °C 200MHz 2.375 V