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MSM7705 - 4ch Single Rail CODEC

General Description

The MSM7705-01/02/03 are four-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: +5 V.
  • Power consumption Operating mode: 70 mW Typ. 140 mW Max. Power-saving mode: 14 mW Typ. 32 mW Max. Power-down mode: 0.05 mW Typ. 0.3 mW Max.
  • Conforms to ITU-T Companding law MSM7705-01: m/A-law pin-selectable MSM7705-02: m-law MSM7705-03: A-law.
  • Built-in PLL eliminates a master clock.
  • The PCM interface can be switched between 4 channel serial/parallel.
  • Transmission clock: 64/128/256/512/1024/2048 kHz 96/192/384/768.

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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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E2U0042-28-81 ¡ Semiconductor MSM7705-01/02/03 ¡ Semiconductor 4ch Single Rail CODEC This version: Aug. 1998 MSM7705-01/02/03 Previous version: Nov. 1996 GENERAL DESCRIPTION The MSM7705-01/02/03 are four-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 four-channel A/D and D/A converters in a single chip and achieve a reduced footprint and a reduced number of external components. The MSM7705-01/02/03 are best suited for digital telephone terminals, digital PABXs, and pushbutton phones. FEATURES • Single power supply: +5 V • Power consumption Operating mode: 70 mW Typ. 140 mW Max. Power-saving mode: 14 mW Typ.