The CDCLVP2108 is a highly versatile, low additive jitter buffer that can generate 16
copies of LVPECL clock outputs from two LVPECL, LVDS, or LVCMOS inputs for a variety of
communication applications. It has a maximum clock frequency up to 2 GHz. Each buffer block
consists of one input that feeds two LVPECL outputs. 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 25 ps, making the
device a perfect choice for use in demanding applications.
The CDCLVP2108 clock buffer distributes two clock inputs (IN0, IN1) to 16 pairs of
differential LVPECL clock outputs (OUT0, OUT15) with minimum skew for clock distribution. Each
buffer block consists of one input that feeds two LVPECL clock outputs. The inputs can be LVPECL,
LVDS, or LVCMOS/LVTTL.
The CDCLVP2108 is specifically designed for driving 50-Ω transmission lines. When driving
the inputs in single-ended mode, the LVPECL bias voltage (VAC_REF) must be
applied to the unused negative input pin. However, for high-speed performance up to 2 GHz,
differential mode is strongly recommended.
The CDCLVP2108 is characterized for operation from 40°C to +85°C and is available in a
7-mm × 7-mm, VQFN-48 package.