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0 THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER TRANSMITTER: GENERAL DESCRIPTION The XRT75L03D is a three-channel fully integrated Line Interface Unit (LIU) with Jitter Attenuator for E3/ DS3/STS-1 applications.
It incorporates 3 independent Receivers, Transmitters and Jitter Attenuators in a single 128 pin LQFP package.
Each channel of the XRT75L03D can be independently configured to operate in the data rate, E3 (34.
368 MHz), DS3 (44.
736 MHz) or STS-1 (51.
84 MHz).
Each transmitter can be turned off and tristated for redundancy support or for conserving power.
The XRT75L03D’s differential receiver provides hig...

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