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MC145532 - ADPCM Transcoder

General Description

An Adaptive Differential PCM (ADPCM) transcoder is used to reduce the data rate required to transmit a PCM encoded voice signal while maintaining the voice fidelity and intelligibility of the PCM signal.

Key Features

  • independent of the mode of any previous enables. A transition from short frame to long frame mode or vice versa will cause at least one frame of data to be destroyed. Each of the four sets of I/O pins determines its mode independent of the other sets. Thus the encoder input could be.

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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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MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC145532/D ADPCM Transcoder MC145532 16 1 Conforms to G.721–1988 and T1.301–1987 The MC145532 Adaptive Differential Pulse Code Modulation (ADPCM) Transcoder provides a low–cost, full–duplex, single–channel transcoder to (from) a 64 kbps PCM channel from (to) either a 16 kbps, 24 kbps, 32 kbps, or 64 kbps channel. • • • • • • • • • • • • • Complies with CCITT Recommendation G.721–1988 Complies with the American National Standard (T1.