73M2901CE-IM/F

Overview

The 73M2901CE is a V.22bis single-chip modem integrating a data pump, controller, and analog front end in a 3.3V device with an AT command host interface. It supports data rates of 2400 bps (V.22bis), 1200 bps (V.22/Bell212), 300 bps (V.21/Bell103), and 1200/75 bps (V.23). Operating from a 2.7V to 3.6V supply, it consumes approximately 9.5mA during normal operation and features standby and power-down modes. The device includes an on-chip hybrid driver, DTMF generation/detection, and worldwide Caller ID capability.

Feature Summary

• Integrates data pump, controller, and analog front end for reduced external component count
• Supports multiple international standards including FCC part 68, CTR21, and JATE
• Provides Worldwide Caller ID capability with U.S. Type I and II support
• Features pin compatibility with the 73M2901CL hard modem and 73M1903 soft modem AFE

Applications

• Set-top boxes
• Point-of-sale terminals
• Automatic teller machines
• Utility meters
• Smart card readers

Procurement Notes

Verify the specific package variant required, as the 73M2901CE is available in both 32-lead QFN and 32-pin TQFP configurations. Confirm that the selected ordering suffix matches the desired physical footprint for your PCB layout. Ensure the design accounts for the separate analog and digital supply requirements specified in the datasheet.

Selection Notes

Select this component for applications requiring a low-speed embedded modem solution with minimal external hardware. Consider the 73M2901CE if backward compatibility with existing 73M2901CL designs is necessary or if a cost-effective path to a soft modem solution via the 73M1903 is desired within the same system architecture.

Part Context

The 73M2901CE belongs to the Teridian (now Analog Devices/Maxim Integrated) family of low-speed modems. It serves as a software-compatible alternative to the 73M2901CL hard modem, offering similar functionality while potentially reducing bill-of-materials costs through integrated features like energy ring detection.

Replacement Considerations

The 73M2901CL is documented as backward compatible with the 73M2901CE. Designers may substitute the 73M2901CL if the 73M2901CE is unavailable, provided the pinout and firmware requirements remain consistent.