Hot-selling and scarce XRT75VL00IV LINE INTERFACE UNIT WITH JITTER ATTENUATOR QFP spot stock

Product Descriptions

The XRT75VL00D is a single-channel fully integrated Line Interface Unit (LIU) with Sonet Desynchronizer for E3/DS3/STS-1 applications. It incorporates an  independent Receiver, Transmitter and Jitter  Attenuator in a single 52 pin TQFP package.

The XRT75VL00D 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.

The XRT75VL00D’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 XRT75VL00D incorporates an advanced crystalless jitter attenuator 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. Also, the jitter attenuator can  be used for clock smoothing in SONET STS-1 to DS3  de-mapping.

The XRT75VL00D provides both Serial  Microprocessor Interface as well as Hardware mode  for programming and control.

The XRT75VL00D supports local, remote and digital  loop-backs. The XRT75VL00D also contains an onboard Pseudo Random Binary Sequence (PRBS)  generator and detector with the ability to insert and  detect single bit error.

Product Features

• On chip Clock and Data Recovery circuit for high input jitter tolerance.

• Meets E3/DS3/STS-1 Jitter Tolerance Requirements.

• Detects and Clears LOS as per G.775.

• Meets Bellcore GR-499 CORE Jitter Transfer Requirements.

• Receiver Monitor mode handles up to 20 dB flat loss with 6 dB cable attenuation.

• Compliant with jitter transfer template outlined in ITU G.751, G.752, G.755 and GR-499-CORE,1995 standards.

• Meets ETSI TBR 24 Jitter Transfer Requirements.

• On chip B3ZS/HDB3 encoder and decoder that can be either enabled or disabled

• On-chip clock synthesizer provides the appropriate rate clock from a single 12.288 MHz Clock.

• Provides low jitter output clock.

Product Applications

• E3/DS3 Access Equipment.

• DSLAMs.

• Digital Cross Connect Systems.

• CSU/DSU Equipment.

• Routers.

• Fiber Optic Terminals

Product Specification

Product Photos

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