Datasheet Texas Instruments DS25MB200 — 数据表

DS25MB200
www.ti.com SNLS220G – MARCH 2006 – REVISED APRIL 2013 DS25MB200 Dual 2.5 Gbps 2:1/1:2 CML Mux/Buffer with Transmit Pre-Emphasis and
Receive Equalization
Check for Samples: DS25MB200 FEATURES DESCRIPTION The DS25MB200 is a dual signal conditioning 2:1
multiplexer and 1:2 fan-out buffer designed for use in
backplane
redundancy
applications.
Signal
conditioning features include input equalization and
programmable output pre-emphasis that enable data
communication in FR4 backplanes up to 2.5 Gbps.
Each input stage has a fixed equalizer to reduce ISI
distortion from board traces. All output drivers have 4
selectable steps of pre-emphasis to compensate for
transmission losses from long FR4 backplanes and
reduce deterministic jitter. The pre-emphasis levels
can be independently controlled for the line-side and
switch-side drivers. The internal loopback paths from
switch-side input to switch-side output enable atspeed system testing. All receiver inputs are internally
terminated with 100Ω differential terminating
resistors. All drivers are internally terminated with
50Ω to VCC. 1 2 0.6–2.5 Gbps Low Jitter Operation …