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 Stock No. 194-8990
Mfr. Part No.CY22393FXI
kr 149,92
Each
Units
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 Stock No. 194-9037
Mfr. Part No.CY23EP05SXC-1H
kr 109,648
Each (In a Tube of 97)
Units
1 30 mA, 45 mA 220MHz Surface Mount SOIC 8 4.97 x 3.98 x 1.47mm 4.97mm 3.98mm 1.47mm 3.6 V +70 °C 220MHz 3 V
RS Stock No. 188-5306
Mfr. Part No.CY22150KFZXC
kr 70,774
Each (In a Tube of 96)
Units
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
RS Stock No. 194-9002
Mfr. Part No.CY2304SXC-1
kr 70,23
Each
Units
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 +70 °C 133.3MHz 3 V
RS Stock No. 194-9019
Mfr. Part No.CY2308ZXI-1H
kr 111,698
Each (In a Tube of 96)
Units
1 70 mA 133.3MHz Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 3.6 V +85 °C 133.3MHz 3 V
RS Stock No. 194-9029
Mfr. Part No.CY2309SXI-1
kr 157,865
Each (In a Tube of 48)
Units
1 35 mA 133MHz Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 3.6 V +85 °C 133.3MHz 3 V
RS Stock No. 194-9040
Mfr. Part No.CY23EP05SXI-1H
kr 144,81
Each
Units
1 30 mA, 45 mA 220MHz Surface Mount SOIC 8 4.97 x 3.98 x 1.47mm 4.97mm 3.98mm 1.47mm 3.6 V +85 °C 220MHz 3 V
RS Stock No. 194-9038
Mfr. Part No.CY23EP05SXC-1H
kr 124,37
Each
Units
1 30 mA, 45 mA 220MHz Surface Mount SOIC 8 4.97 x 3.98 x 1.47mm 4.97mm 3.98mm 1.47mm 3.6 V +70 °C 220MHz 3 V
RS Stock No. 124-2935
Mfr. Part No.CY2305SXI-1H
kr 29,418
Each (In a Pack of 10)
Units
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
RS Stock No. 194-9044
Mfr. Part No.CY23S05SXC-1H
kr 95,12
Each
Units
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 Stock No. 194-9041
Mfr. Part No.CY23EP09ZXI-1H
kr 127,62
Each (In a Tube of 96)
Units
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
RS Stock No. 194-9010
Mfr. Part No.CY2305CSXI-1H
kr 64,36
Each
Units
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
RS Stock No. 194-8995
Mfr. Part No.CY2292FXI
kr 121,363
Each (In a Tube of 48)
Units
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
RS Stock No. 194-8983
Mfr. Part No.CY22381FXC
kr 116,524
Each (In a Tube of 97)
Units
3 70 (Typ.) mA 166MHz Surface Mount SOIC 8 4.97 x 3.98 x 1.47mm 4.97mm 3.98mm 1.47mm 3.46 V +70 °C 200MHz 3.13 V
RS Stock No. 194-9033
Mfr. Part No.CY2309ZXI-1H
kr 100,601
Each (In a Tube of 96)
Units
1 35 mA 133MHz Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 3.6 V +85 °C 133.3MHz 3 V
RS Stock No. 194-8994
Mfr. Part No.CY2292FXC
kr 63,60
Each (In a Pack of 2)
Units
3 65 (Typ.) mA 30MHz Surface Mount SOIC 16 9.98 x 3.98 x 1.47mm 9.98mm 3.98mm 1.47mm 3.6 V +70 °C 66.6MHz 3 V
RS Stock No. 194-9025
Mfr. Part No.CY2309SXC-1
kr 56,814
Each (In a Tube of 48)
Units
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 Stock No. 194-9042
Mfr. Part No.CY23EP09ZXI-1H
kr 144,81
Each
Units
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
RS Stock No. 194-9020
Mfr. Part No.CY2308ZXI-1H
kr 126,87
Each
Units
1 70 mA 133.3MHz Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm 3.6 V +85 °C 133.3MHz 3 V
RS Stock No. 194-9011
Mfr. Part No.CY2305SXC-1
kr 28,829
Each (In a Tube of 97)
Units
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