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 Price 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庫存編號 194-9043
製造零件編號CY23S05SXC-1H
HK$78.527
毎管:97 個
單位
1 32 mA 133MHz Surface Mount SOIC 8 4.97 x 3.98 x 1.47mm 4.97mm 3.98mm 1.47mm 3.6 V +70 °C 133.33MHz 3 V
RS庫存編號 194-9041
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毎管:96 個
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1 30 mA, 45 mA 220MHz Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 3.6 V +85 °C 220MHz 3 V
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RS庫存編號 216-6263
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/個 (每包:5個)
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RS庫存編號 216-6159
製造零件編號570AILF
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/個 (每包:2個)
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- 25 mA 170MHz Surface Mount SOIC-8 8 - - - - - - - -
RS庫存編號 787-6970
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HK$92.99
單位
8 210 mA 8GHz Surface Mount QFN 16 3 x 3 x 0.95mm 3mm 3mm 0.95mm 3.6 V +85 °C - 1.71 V
RS庫存編號 124-5344
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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 - -
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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庫存編號 194-9025
製造零件編號CY2309SXC-1
HK$54.384
毎管:48 個
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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庫存編號 194-9021
製造零件編號CY2309NZSXC-1H
HK$109.376
毎管:48 個
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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
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4 -40 mA 3GHz Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm +5.5 V +85 °C - -3 V
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6 80 mA 200MHz Surface Mount QFN 24 4 x 4 x 0.85mm 4mm 4mm 0.85mm 3.63 V +85 °C 1250MHz 2.97 V
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1 50 mA 133MHz Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm 3.6 V +85 °C 133.3MHz 3 V
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1 63 mA - Surface Mount LFCSP 16 3 x 2.75 x 0.85mm 3mm 2.75mm 0.85mm 3.63 V +125 °C - 2.375 V
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RS庫存編號 194-9017
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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
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RS庫存編號 216-6262
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個 (在毎卷:3000)
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- 20 mA 150MHz - TSSOP 20 - - - - - - - -
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製造零件編號CY2292FXI
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3 110 (Typ.) mA 30MHz Surface Mount SOIC 16 9.98 x 3.98 x 1.47mm 9.98mm 3.98mm 1.47mm 5.5 V +85 °C 80MHz 4.5 V