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Details for Texas Instruments


Low Jitter, 2-Input Selectable 1:8 Universal-to-LVPECL Buffer
Buy Directly from Texas Instruments (2960 in Stock)
$5.7500 per unit
Series Information for CDCLVP1208RHDT - Texas Instruments


  • feature
    2.375-V to 3.6-V Device Power Supply
  • feature
    2:8 Differential Buffer
  • feature
    Available in 5-mm u00d7 5-mm QFN-28 (RHD)
  • feature
    ESD Protection Exceeds 2 kV (HBM)
  • feature
    Eight LVPECL Outputs
  • feature
    Industrial Temperature Range: u201340u00b0C to 85u00b0C
  • feature
    LVPECL Reference Voltage, VAC_REF, Available for Capacitive-Coupled Inputs
  • feature
    Maximum Clock Frequency: 2 GHz
  • feature
    Maximum Core Current Consumption: 73 mA
  • feature
    Maximum Output Skew: 20 ps
  • feature
    Maximum Propagation Delay: 450 ps
  • feature
    Selectable Clock Inputs Through Control terminal
  • feature
    Supports 105u00b0C PCB Temperature (Measured with a Thermal Pad)
  • feature
    Universal Inputs Accept LVPECL, LVDS, and LVCMOS/LVTTL
  • feature
    Very Low Additive Jitter: <100 fs,rms in 10 kHz to 20 MHz Offset Range: u2013 57 fs, rms (typical) at 122.88 MHz u2013 48 fs, rms (typical) at 156.25 MHz u2013 30 fs, rms (typical) at 312.5 MHz


The CDCLVP1208 is a highly versatile, low additive jitter buffer that can generate eight copies of LVPECL clock outputs from one of two selectable LVPECL, LVDS, or LVCMOS inputs for a variety of communication applications. It has a maximum clock frequency up to 2 GHz. The CDCLVP1208 features an on-chip multiplexer (MUX) for selecting one of two inputs that can be easily configured solely through a control terminal. The overall additive jitter performance is less than 0.1 ps, RMS from 10 kHz to 20 MHz, and overall output skew is as low as 20 ps, making the device a perfect choice for use in demanding applications. The CDCLVP1208 clock buffer distributes one of two selectable clock inputs (IN0, IN1) to eight pairs of differential LVPECL clock outputs (OUT0, OUT7) with minimum skew for clock distribution. The CDCLVP1208 can accept two clock sources into an input multiplexer. The inputs can be LVPECL, LVDS, or LVCMOS/LVTTL. The CDCLVP1208 is specifically designed for driving 50-Ω transmission lines. When driving the inputs in single-ended mode, the LVPECL bias voltage (VAC_REF) should be applied to the unused negative input terminal. However, for high-speed performance up to 2 GHz, differential mode is strongly recommended. The CDCLVP1208 is packaged in a small 28-pin, 5-mm x 5-mm QFN package and is characterized for operation from –40°C to 85°C.


Clock IC Type:
Clock Buffer
No. of Outputs:
Supply Voltage Min:
Supply Voltage Max:
Clock IC Case Style:
No. of Pins:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 3 - 168 hours
No SVHC (27-Jun-2018)

Alternate Descriptions

Avnet America

Clock Driver 2-IN LVPECL 28-Pin VQFN EP T/R

Avnet America product

Avnet Europe

Clock Driver 2-IN LVPECL 28-Pin VQFN EP T/R

Avnet Europe product

Texas Instruments

Low Jitter, 2-Input Selectable 1:8 Universal-to-LVPECL Buffer

Texas Instruments product