DESCRIPTION

The Teridian 73M1903 Analog Front End (AFE) IC includes fully differential hybrid driver outputs, which connect to the telephone line interface through a transformer-based DAA. The receive pins are also fully differential for maximum flexibility and performance. This arrangement allows for the design of a high performance hybrid circuit to improve signal to noise performance under low receive level conditions, and compatibility with any standard transformer intended for PSTN communications applications.

FEATURES

? Up to 56 kbps (V.92) performance

? Programmable sample rates (7.2 - 14.4 kHz)

? Reference clock range of 9-40 MHz

? Crystal frequency range of 9-27 MHz

? Host synchronous serial interface operation

? Pin compatible with 73M2901CL/CE

modems

? Low power modes

? On board line interface drivers

? Fully differential receiver and transmitter

? Drivers for transformer interface

? 3.0 V – 3.6 V operation

? 5 V tolerant I/O

? Industrial temperature range (-40 to +85 °C)

? JATE compliant transmit spectrum

? Package options:

? 32-pin QFN

? 20-pin TSSOP

? RoHS compliant (6/6) lead-free packages

APPLICATIONS

? Set Top Boxes

? Personal Video Recorders (PVR)

? Multifunction Peripherals (MFP)

? Fax Machines

? Internet Appliances

? Game Consoles

? Point of Sale Terminals

? Automatic Teller Machines

? Speaker Phones

? RF Modems