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MSM7704 - 2ch Single Rail CODEC

General Description

The MSM7704-01/7704-02/7704-03 are two-channel CODEC CMOS ICs for voice signals ranging from 300 to 3400 Hz.

These devices contain filters for A/D and D/A conversion.

Key Features

  • Single power supply: +2.7 V to +3.8 V.
  • Power consumption Operating mode: 30 mW Typ. 50 mW Max. Power-saving mode: 3 mW Typ. 6 mW Max. Power-down mode: 0.03 mW Typ. 0.3 mW Max.
  • ITU-T Companding law MSM7704-01: m/A-law pin-selectable MSM7704-02: m-law MSM7704-03: A-law.
  • Built-in PLL eliminates a master clock.
  • The PCM interface can be switched between 2 channel serial/parallel.
  • Transmission clock: 64/128/256/512/1024/2048 kHz 96/192/384/768/15.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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E2U0021-28-81 ¡ Semiconductor MSM7704-01/02/03 ¡ Semiconductor 2ch Single Rail CODEC This version: Aug. 1998 MSM7704-01/02/03 Previous version: Nov. 1996 GENERAL DESCRIPTION The MSM7704-01/7704-02/7704-03 are two-channel CODEC CMOS ICs for voice signals ranging from 300 to 3400 Hz. These devices contain filters for A/D and D/A conversion. Designed especially for a single-power supply and low-power applications, these devices contain two-channel AD/DA converters in a single chip and achieve a reduced footprint and a reduced number of external components. The MSM7704-01/7704-02/7704-03 are best suited for an analog interface to an echo canceller DSP used in digital telephone terminals, digital PABXs, and hands free terminals. FEATURES • Single power supply: +2.7 V to +3.