DESCRIPTION

The IDT82V2044 is a single chip, 4-channel T1/E1 short haul PCM transceiver with a reference clock of 1.544 MHz (T1) or 2.048 MHz (E1). The IDT82V2044 contains 4 transmitters and 4 receivers.

FEATURES

? Fully integrated quad T1/E1 short haul line interface which supports 100 ? T1 twisted pair, 120 ? E1 twisted pair and 75 ? E1 coaxial applications

? Selectable Single Rail mode or Dual Rail mode and AMI or B8ZS/HDB3 encoder/decoder

? Built-in transmit pre-equalization meets G.703 & T1.102

? Selectable transmit/receive jitter attenuator meets ETSI CTR12/ 13, ITU G.736, G.742, G.823 and AT&T Pub 62411 specifications

? SONET/SDH optimized jitter attenuator meets ITU G.783 mapping jitter specification

? Digital/Analog LOS detector meets ITU G.775, ETS 300 233 and T1.231

? ITU G.772 non-intrusive monitoring for in-service testing for any one of channel 1 to channel 3

? Low impedance transmit drivers with high-Z

? Selectable hardware and parallel/serial host interface

? Local, Remote and Inband Loopback test functions

? Hitless Protection Switching (HPS) for 1 + 1 protection without relays

? JTAG boundary scan for board test

? 3.3 V supply with 5 V tolerant I/O

? Low power consumption

? Operating temperature range: -40°C to +85°C

? Available in 144-pin Thin Quad Flat Pack (TQFP) and 160-pin Plastic Ball Grid Array (PBGA) packages Green package options available