Datasheet Texas Instruments DS125DF410 — Datenblatt

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SNLS398H – JANUARY 2012 – REVISED FEBRUARY 2018 DS125DF410 Low Power Multi-Rate Quad Channel Retimer
1 Features 3 Description The DS125DF410 is four channel retimer with
integrated signal conditioning. The device includes a
fully adaptive Continuous-Time Linear Equalizer
(CTLE), self calibrating 5-tap Decision Feedback
Equalizer (DFE), Clock and Data Recovery (CDR),
and transmit De-Emphasis (DE) driver to enable data
transmission over long, lossy and crosstalk-impaired
highspeed serial links to achieve BER < 1Г—10-15. Each channel can independently lock to data rate
from 9.8 to 12.5 Gbps, and associated sub rates (div
by 2, 4 and 8) to support a variety of communication
protocols. A 25 MHz crystal oscillator clock is used to
speed up the CDR lock process. This clock is not
used for training the PLL and does not need to be
synchronous with the serial data.
The programmable settings can be applied using the
SMBus (I2C) interface, or they can be loaded via an …