OVERVIEW

The IDT82V2048L is a fully integrated octal short-haul analog front end (AFE), which contains eight transmit and receive channels for use in either T1 or E1 applications. The raw sliced data (no retiming) is output to the system. Transmit equalization is implemented with low-impedance output drivers that provide shaped waveforms to the transformer, guaranteeing template conformance. Moreover, testing functions, such as JTAG boundary scan is provided. The device is optimized for flexible software control through a serial or parallel host mode interface. Hardware control is also available. Figure-1 on page 1 shows one of the eight identical channels operation.

FEATURES

◆ Octal T1/E1 short haul analog front end which supports 100 ? T1 twisted pair, 120 ? E1 twisted pair and 75 ? E1 coaxial applications

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

◆ Digital/Analog LOS detector meets ITU G.775, ETS 300 233 and ◆1.231

◆ ITU G.772 non-intrusive monitoring for in-service testing for any one of channel 1 to channel 7

◆ Low impedance transmit drivers with high-Z

◆ Selectable hardware and parallel/serial host interface

◆ Hitless Protection Switching (HPS) for 1 to 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