MAXIM 73M2901CL-IGT/F

The 73M2901CL is a single-chip modem integrating all controller (DTE) and data pump functions required to implement an intelligent V.22BIS data modem. It is suited for embedded applications requiring a data back-channel over the telephone network, such as set-top boxes, point-of-sale terminals, ATMs, handheld communication devices, and smart card readers.

The device is based on an industry-standard 8032 microcontroller core implemented by TERIDIAN Semiconductor, with a proprietary multiply/accumulate (MAC) coprocessor; Sigma-Delta A/D and D/A converters (CODEC); and an analog DAA driver. The ROM and RAM required to operate the modem are contained within the device. In addition, the 73M2901CL provides an on-chip oscillator and hybrid circuit.

True single-chip solution for embedded systems

• Low power: operating current as low as 9.5mA, with standby and power-down modes
• Supply voltage range from 3.6V to 2.7V
• Data rates:
  • V.22BIS – 2400bps
  • V.22/Bell212 – 1200bps
  • V.21/Bell103 – 300bps
  • V.23 – 1200/75bps (with PAVI transfer)
  • Bell202 – 1200bps
  • Bell202/V23 four-wire operation
• International call progress support: FCC68, CTR21, JATE, etc.
• Worldwide caller ID: Type I and II support
• DTMF generation and detection per EIA 716
• On-chip hybrid driver
• Blacklist functionality
• Line-in-use and parallel off-hook (911) detection
• Manufacturing self-test capability
• Packages: 32-pin PLCC / 32-pin TQFP / 44-pin LQFP

• Set-top boxes
• Point-of-sale terminals
• ATMs
• Handheld communication devices
• Smart card readers/writers