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 194-9022
製造零件編號CY2309NZSXC-1H
HK$124.09
單位
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 194-8992
製造零件編號CY22394FXI
HK$88.93
單位
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
全新
RS庫存編號 217-7815
製造零件編號2305-1HDCGI
HK$5.976
毎管:97 個
單位
6 32 mA 133MHz Surface Mount SOIC 8 - - - - - - - -
RS庫存編號 194-9020
製造零件編號CY2308ZXI-1H
HK$121.54
單位
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庫存編號 194-9042
製造零件編號CY23EP09ZXI-1H
HK$138.73
單位
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庫存編號 145-4073
製造零件編號NB2305AI1DR2G
HK$4.563
個 (在毎卷:2500)
單位
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
全新
RS庫存編號 217-7873
製造零件編號5PB1110NDGI
HK$36.61
/個 (每包:2個)
單位
11 27 mA 200MHz Surface Mount SOIC 20 - - - - - - - -
RS庫存編號 194-9034
製造零件編號CY2309ZXI-1H
HK$109.55
單位
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庫存編號 162-8133
製造零件編號CDCLVC1108PW
HK$37.216
毎管:90 個
單位
6 10 mA 180 MHz, 250 MHz Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm 2.7 V, 3.6 V +85 °C 180 MHz, 250 MHz 2.3 V, 3 V
RS庫存編號 194-8999
製造零件編號CY2304NZZXI-1
HK$77.559
毎管:162 個
單位
1 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 66.66MHz 3 V
RS庫存編號 162-9379
製造零件編號MC100LVEL11DG
HK$34.639
毎管:98 個
單位
4 30 mA 1GHz Surface Mount SOIC 8 5 x 4 x 1.5mm 5mm 4mm 1.5mm +3.8 V +85 °C - ±3 V
RS庫存編號 194-9007
製造零件編號CY2305CSXI-1
HK$43.806
毎管:97 個
單位
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庫存編號 124-5344
製造零件編號NB6N14SMNG
HK$62.665
毎管:123 個
單位
4 100 mA 2GHz Surface Mount QFN 16 3 x 3 x 0.95mm 3mm 3mm 0.95mm 3.8 V +85 °C - -
RS庫存編號 787-6879
製造零件編號NB2305AI1DR2G
HK$12.064
/個 (每包:5個)
單位
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
全新
RS庫存編號 217-7834
製造零件編號511MILF
HK$25.602
/個 (每包:5個)
單位
1 8 mA 50MHz Surface Mount SOIC 8 - - - - - - - -
RS庫存編號 177-9646
製造零件編號PL123-02NGI
BrandMicrochip
HK$20.714
個 (以毎袋:20)
單位
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
全新
RS庫存編號 216-6242
製造零件編號9DB403DGLFT
HK$14.687
個 (在毎卷:2000)
單位
- 115 mA 400MHz - TSSOP-28 28 - - - - - - - -
RS庫存編號 194-8995
製造零件編號CY2292FXI
HK$113.959
毎管:48 個
單位
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
全新
RS庫存編號 216-6264
製造零件編號9DBL411BKILF
HK$22.535
毎管:75 個
單位
- 20 mA 150MHz - TSSOP 20 - - - - - - - -
RS庫存編號 194-8983
製造零件編號CY22381FXC
HK$111.673
毎管:97 個
單位
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