Exar Corporation 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 XRT75L02 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 (tristated) for redundancy support and for conserving power.| Part No. | XRT75L02 |
|---|---|
| Datasheet | XRT75L02 Download |
| Manufacturer |  Exar Corporation |
| Description | TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The XRT75L02’s 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 XRT75L02 provides both Serial Microprocessor Interface as well as Hardware mode for programming and control. The XRT75L02 supports local,remote and digital loop-backs. The XRT75L02 also contains an onboard Pseudo Random Binary Sequence (PRBS) generator and detector with the ability to insert and detect single bit error.● Provides low jitter clock outputs for either DS3,E3
● On-chip clock synthesizer provides the appropriate rate clock from a single 12.288 MHz Clock.
● Provides low jitter output clock. TRANSMITTER:
● Compliant with Bellcore GR-499, GR-253 and ANSI T1.102 Specification for transmit pulse
● Tri-state Transmit output capability for redundancy applications
● Transmitters can be turned on or off.
