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