See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

NJU | 48

Temp:

I (-40 to 85)

ECO Plan:

Green (RoHS & no Sb/Br)

DS42MB200TSQ/NOPB


Dual 4.25 Gbps 2:1/1:2 CML Mux/Buffer w/ Tx Pre-Emphasis & Rx Equalization

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Texas Instruments DS42MB200TSQ/NOPB

The DS42MB200 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 4.25 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 at-speed system testing. All receiver inputs are internally terminated with 100Ω differential terminating resistors. All driver outputs are internally terminated with 50Ω to VCC.

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