73M1916-IVTR/F

Overview

The 73M1916-IVTR/F is a line-side Data Access Arrangement (DAA) component within the Teridian MicroDAA family, designed for Voice-over-IP applications. It connects PCM formatted voice channels to the Public Switched Telephone Network via a two-wire interface. The device operates on a 3.0 V to 3.6 V supply and supports both 8-kHz and 16-kHz sampling rates with ITU-T G.711 compliant codecs. It features an SPI control interface supporting daisy chains of up to 16 devices and provides isolation up to 6 kV through a pulse transformer barrier.

Feature Summary

• Integrated MicroDAA technology providing digital isolation and power transfer across a pulse transformer barrier
• Supports E-1 and T-1 PCM highway interfaces in both master and slave modes
• Includes call progress monitoring, Caller ID detection, and polarity reversal sensing
• Configurable transmit and receive gain adjustments with selectable companding modes

Applications

• Voice-over-IP equipment requiring PSTN connectivity
• Computer telephony integration systems
• PBX systems and internet appliances
• Voicemail systems and POTS termination equipment

Procurement Notes

Verify the specific suffix IVTR against official documentation to confirm package type and temperature range. Ensure compatibility with the host-side 73M1906B controller if utilizing the split architecture. Confirm RoHS compliance status for the specific manufacturing lot.

Selection Notes

Select this component when a dedicated line-side DAA is required for system modularity. It is suitable for designs needing high isolation voltage and flexible PCM interface options. Consider the 32-pin QFN or 20-pin TSSOP packages based on board space constraints.

Part Context

This part belongs to the 73M1x66B series developed by Teridian Semiconductor, now part of Analog Devices. The 73M1916 specifically serves as the line-side counterpart to the 73M1906B host-side device, enabling distributed DAA architectures in VoIP gateways.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided datasheet.