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MSM9841 - Recording and Playback LSI with Built-in FIFO

General Description

The MSM9841 is a mono/stereo record and playback LSI with a built-in 1K bit FIFO for easy interface with external systems or non-semiconductor memory.

It utilizes multiple record and playback modes, including the new ADPCM2 algorithm, which allows for even higher quality sound reproduction.

Key Features

  • 16/8-bit bus interface support.
  • FIFO capacity: User-definable (256/512/1024 bits) (buffering time of 32 ms when using 8 kHz sampling frequency, 4-bit ADPCM2/ADPCM, and in monaural playback).
  • Supports four compression algorithms for record and playback: 4, 5, 6, 7, 8-bit ADPCM2; 4-bit ADPCM; 8; 16-bit PCM; and 8-bit Nonlinear PCM.
  • Sampling frequency: 4.0 kHz, 6.4 kHz, 8.0 kHz, 12.8 kHz, 16.0 kHz, 32.0 kHz.
  • (fosc=4.096 MHz).
  • Sampling frequency: 22.

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Datasheet Details

Part number MSM9841
Manufacturer OKI Electric
File Size 127.10 KB
Description Recording and Playback LSI with Built-in FIFO
Datasheet download datasheet MSM9841 Datasheet

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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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FEDL9841-04 ¡ Semiconductor FEDL9841-04 This version: MSM9841 Jul. 2000 Previous version: Jun. 1999 ¡ Semiconductor MSM9841 Recording and Playback LSI with Built-in FIFO This document contains minimum specifications. For full specifications, please contact your nearest Oki office or representative. GENERAL DESCRIPTION The MSM9841 is a mono/stereo record and playback LSI with a built-in 1K bit FIFO for easy interface with external systems or non-semiconductor memory. It utilizes multiple record and playback modes, including the new ADPCM2 algorithm, which allows for even higher quality sound reproduction. The record and playback functions of the MSM9841 is controlled by an MCU via 8/16-bit bus interface.