XRT75L02

The XRT75L02 is a two-channel fully integrated Line Interface Unit (LIU) with Jitter Attenuator for E3/DS3/STS-1 applications. It incorporates independent Receivers, Transmitters and Jitter Attenuators in a single 100-pin TQFP package.

The device can be configured to operate in either E3 (34.368 MHz), DS3 (44.736 MHz) or STS-1 (51.84 MHz) modes.The transmitter can be turned off (tri-stated) for redundancy support and for conserving power.

Its differential receiver provides high noise interference margin and is able to receive the data over 1000 feet of cable or with up to 12 dB of cable attenuation.

The XRT75L02 incorporates advanced crystal-less jitter attenuators that can be selected either in the transmit or receive path. The jitter attenuator performance meets the ETSI TBR-24 and Bellcore GR-499 specifications.

The device provides both Serial Microprocessor Interface as well as Hardware mode for programming and control.

It supports local, remote and digital loop-backs. The XRT75L02 also contains an on-board Pseudo Random Binary Sequence (PRBS) generator and detector with the ability to insert and detect single bit error.