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MSM7541 - (MSM7542) Single Rail CODEC

General Description

The MSM7541 and MSM7542 are single-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: +3.0 V to +3.8 V.
  • Low power consumption Operating mode: 23 mW Typ. VDD = 3.3 V Power save mode: 1 mW Typ. VDD = 3.3 V Power down mode: 0.04 mW Typ. VDD = 3.3 V.
  • ITU-T Companding law MSM7541: m-law MSM7542: A-law.
  • Built-in PLL eliminates a master clock.
  • Serial data rate: 64/128/256/512/1024/2048 kHz 96/192/384/768/1536/1544/200 kHz.
  • Adjustable transmit gain.
  • Adjustable receive gain.
  • Built-in reference vo.

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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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E2U0014-28-81 ¡ Semiconductor MSM7541/7542 ¡ Semiconductor Single Rail CODEC This version: Aug. 1998 MSM7541/7542 Previous version: Nov. 1996 GENERAL DESCRIPTION The MSM7541 and MSM7542 are single-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 are optimized for telephone terminals in digital wireless systems. The MSM7541 and MSM7542 use newly designed operational amplifiers to maintain small current deviations caused by power voltage fluctuations. The devices use the same transmission clocks as those used in the MSM7508B and MSM7509B.