MicroDAA Silicon DAAs with Serial Interface

Devices Set New Standards for Soft Modem Silicon DAA Performance and Functionality

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The Teridian 73M1x22 MicroDAA™ device family is an integrated solution that uses a unique data access arrangement (DAA) function designed exclusively for data/fax modem and voice applications. The devices provide a serial MAFE interface to popular DSP/host processors to implement a globally compliant cost effective soft modem solution.

Suitable applications for the 73M1x22 include set-top boxes, low-to-high-speed (PCM) voiceband data modems, point-of-sale terminals, fax and multifunction peripherals, text telephony, and embedded telemetry (industrial and medical).

The 73M1x22 device family consists of the 73M1922, which is a two-chip set consisting of a PSTN line side device and host/digital side device. The 73M1822 is a single package solution of the 73M1922 chipset, providing a small form factor with necessary isolation requirements.

Key Features

  • Full Analog Front-End and DAA for Voiceband Modem Applications
  • Single Package Device (73M1822), Two-Chip Set (73M1922)
  • Integrated Support for Programmable DAA with a Single BOM for Worldwide Homologation
  • Low Bill of Materials Cost and Area Footprint
  • Teridian's MicroDAA Architecture
  • Uses Low-Cost Pulse Transformer


  • Embedded Modem Applications such as Medical and Industrial Telemetry
  • Fax/Multifunction Peripherals (MFPs)
  • High-Speed Voiceband Data Modems
  • POS Terminals
  • Satellite Set-Top Boxes
Request Reliability Report for: 73M1922 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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Type ID Title
Evaluation Board691673M1822-KEYCHN 73M1822 Keychain Demo Board
Evaluation Board691573M1922-DB 73M1922 Demo Board