DESCRIPTION

The DS2154 Enhanced Single-Chip Transceiver (ESCT) contains all of the necessary functions for connection to E1 lines. The device is an upward compatible version of the DS2153 Single-Chip Transceiver.

FEATURES

● Complete E1(CEPT) PCM-30/ISDN-PRI transceiver functionality

● Onboard long- and short-haul line interface for clock/data recovery and waveshaping

● 32-bit or 128-bit crystal-less jitter attenuator

● Generates line build outs for both 120Ω=and 75Ω=lines

● Frames to FAS, CAS, and CRC4 formats

● Dual onboard two-frame elastic store slip buffers that can connect to asynchronous backplanes up to 8.192 MHz

● 8-bit parallel control port that can be used directly on either multiplexed or non-multiplexed buses

● Extracts and inserts CAS signaling

● Detects and generates Remote and AIS alarms

● Programmable output clocks for Fractional E1, H0, and H12 applications

● Fully independent transmit and receive functionality

● Full access to both Si and Sa bits aligned with CRC multiframe

● Four separate loopbacks for testing functions

● Large counters for bipolar and code violations, CRC4 codeword errors, FAS errors, and E bits

● Pin compatible with DS2152 T1 Enhanced Single Chip Transceiver

● 5V supply; low power CMOS

● 100-pin 14mm2 body LQFP package