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MT9122 - Dual Voice Echo Canceller

Description

The MT9122 Voice Echo Canceller implements a cost effective solution for telephony voice-band echo cancellation conforming to ITU-T G.165 requirements.

Features

  • Dual channel 64 ms or single channel 128 ms echo cancellation.
  • Conforms to ITU-T G.165 requirements.
  • ITU-T G.165/G.164 disable tone detection supported on all audio paths.
  • Narrow-band signal detection.
  • Programmable double-talk detection threshold.
  • Non-linear processor with adaptive suppression threshold and comfort noise insertion.
  • Offset nulling of all PCM channels.
  • Controllerless mode or Controller mode with serial interf.

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Datasheet Details

Part number MT9122
Manufacturer MITEL
File Size 448.54 KB
Description Dual Voice Echo Canceller
Datasheet download datasheet MT9122 Datasheet

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Full PDF Text Transcription

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MT9122 Dual Voice Echo Canceller with Tone Detection Data Sheet Features • Dual channel 64 ms or single channel 128 ms echo cancellation • Conforms to ITU-T G.165 requirements • ITU-T G.165/G.164 disable tone detection supported on all audio paths • Narrow-band signal detection • Programmable double-talk detection threshold • Non-linear processor with adaptive suppression threshold and comfort noise insertion • Offset nulling of all PCM channels • Controllerless mode or Controller mode with serial interface • ST-BUS or variable-rate SSI PCM interfaces • Selectable µ/A-Law ITU-T G.711; µ/A-Law Sign Mag; linear 2’s complement • Per channel selectable 12 dB attenuator • Transparent data transfer and mute option • 19.
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