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