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
RS-artikelnummer 194-9026
Tillv. art.nrCY2309SXC-1
33,23 kr
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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
RS-artikelnummer 169-0095
Tillv. art.nrSI53108-A01AGM
38,15 kr
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- 90 mA 150MHz Surface Mount QFN 48 6 x 6 x 0.9mm 6mm 6mm 0.9mm 3.465 V +85 °C 133MHz 3.135 V
RS-artikelnummer 194-9014
Tillv. art.nrCY2308SXI-1
38,31 kr
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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
RS-artikelnummer 217-7849
Tillv. art.nr551SDCGI
38,816 kr
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5 18 mA 160MHz Surface Mount SOIC 8 - - - - - - - -
RS-artikelnummer 216-6251
Tillv. art.nr9DB833AGILF
61,348 kr
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- 170 mA 166MHz - TSSOP-48 48 - - - - - - - -
RS-artikelnummer 802-2051
Tillv. art.nrNB6N14SMNG
Varumärkeonsemi
182,57 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 194-8991
Tillv. art.nrCY22394FXI
48,686 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 216-6260
Tillv. art.nr9DBL0851BKILF
33,551 kr
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- 25 mA 200MHz - VFQFPN 48 - - - - - - - -
RS-artikelnummer 817-5941
Tillv. art.nrCDCLVC1104PW
VarumärkeTexas Instruments
55,026 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 235-8706
Tillv. art.nr8P34S1208NBGI
123,964 kr
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- - 1.2GHz Surface Mount VFQFPN 28 5.00 x 5.00 x 0.80mm 5mm 5mm 0.8mm 1.89 V 85 °C 156.25MHz 1.71 V
RS-artikelnummer 217-7854
Tillv. art.nr553SDCGI
22,53 kr
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5 25 mA 200MHz Surface Mount SOIC 8 - - - - - - - -
RS-artikelnummer 216-6252
Tillv. art.nr9DB833AGILF
72,035 kr
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- 170 mA 166MHz - TSSOP-48 48 - - - - - - - -
RS-artikelnummer 235-8719
Tillv. art.nr9DML0441AKILF
39,688 kr
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- 31 mA 200MHz Surface Mount VFQFPN 24 4.00 x 4.00 x 0.90mm 4mm 4mm 0.9mm 3.465 V 85 °C 200MHz 3.135 V
RS-artikelnummer 235-8701
Tillv. art.nr5P49V5901B000NLGI
109,999 kr
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Clock Buffer 34 mA 1MHz Surface Mount VFQFN 24 4.00 x 4.00 x 0.90mm 4mm 4mm 0.9mm 3.46 V 85 °C 350MHz 1.71 V
RS-artikelnummer 865-2404
Tillv. art.nrSI53108-A01AGM
56,69 kr
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- - - - - - - - - - - - - -
RS-artikelnummer 787-6936
Tillv. art.nrNB3N551MNR4G
Varumärkeonsemi
27,322 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 216-6249
Tillv. art.nr9DB433AGLFT
28,60 kr
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- 170 mA 166MHz - TSSOP-28 28 - - - - - - - -
RS-artikelnummer 163-0041
Tillv. art.nrNB3U1548CDG
Varumärkeonsemi
23,524 kr
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1 5 μA 2GHz Surface Mount SOIC 8 5 x 4 x 1.5mm 50mm 4mm 1.5mm 3.3 V +85 °C 160MHz 1.5 V
RS-artikelnummer 787-6927
Tillv. art.nrNB3N2304NZDTG
Varumärkeonsemi
22,29 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 188-5306
Tillv. art.nrCY22150KFZXC
91,797 kr
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6 45 mA 133 (Clock)MHz Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 3.46 V +70 °C 200MHz 3.13 V