Quad E1 Line Transceiver with JA & CDR


Demand for greater transmission capacity has propelled telecommunications, and networking system companies to develop more E1 (2.048 Mbps) solutions. As more companies standardize on Wide Area Network (WAN) based, E1 transmission rates, or higher, companies are increasingly seeking off-the-shelf industry-proven components. Exar's four-channel LIU and Framer are ideally suited for this growing E1 market.

These devices are primarily targeted at single-channel and multi-channel E1 applications, such as telecommunications equipment, network multiplexers, central office switches and digital cross connects. In instances where clock recovery and jitter attenuation functions have moved from the ASIC to the transceiver, these new four-channel parts are ideal.

The XRT82L24 is a fully-integrated, four-channel, short-haul line interface transceiver for 75Ω or 120Ω applications. Each channel consists of a receiver, and a transmitter which accepts a single, or dual-rail digital input for signal transmission. It also includes a crystal-less jitter attenuator which can be selected in the transmit, or receive path through the host, or hardware mode.

In addition, the device has high immunity to receiver interference, a per-channel transmit power shut-down capability, and meets or exceeds industry specifications: ITU G.703, G. 775, G.736 and G.823, and ETSI 300-166.

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  • On-chip clock recovery circuit
  • Receive input can be transformer, or capacitor coupled
  • Tri-state transmit output capacity
  • On-chip per channel driver failure monitoring circuit
  • Pb-Free, RoHS Compliant Versions Offered


  • Digital Access Cross-Connects (DACs)
  • Channel banks
  • High-speed data transmission line cards
  • E1 multiplexer
  • Public switching systems and PBX interfaces

Design Tools

Technical Library


Pkg Code Details Quantities Dimensions PDF

Parts & Purchasing

Part Number Pkg Code RoHS Min Temp Max Temp Status Buy Now Order Samples
XRT82L24AIV -40 85 OBS
XRT82L24AIV-F -40 85 OBS Suggested:
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Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
Distribution Date Description File
07/26/2016 Product discontinuation notification. Discontinued. PDN 16-0626-01-1033.pdf
10/03/2013 Addition of an alternate qualified assembly site, ASE Chung-Li (Taiwan). Material change and alternate assembly site. PCN_13-0623-03-1033.pdf