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MM1077 - Compander IC

General Description

1.

Compressor unit The compressor unit consists of the mike amp, compressor, limiter circuit, data amp, and mute circuit.

The mike amp gain can be adjusted through an external resistance, and so the mike amp can be connected directly to a microphone.

Key Features

  • 1. Can be driven at low voltages (down to 2.0V) 2. Internal mute function 3. Internal limiter (IDC) function 4. Compressor input can be switched between MIC and LINE 5. Internal standby function 6. Data input, output pins 7. Independent mute circuit Package SSOP-24A (MM1077XF).

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Datasheet Details

Part number MM1077
Manufacturer Mitsumi Electronics
File Size 189.70 KB
Description Compander IC
Datasheet download datasheet MM1077 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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www.DataSheet4U.com MITSUMI Compander IC MM1077 Compander IC Monolithic IC MM1077 Outline This IC was developed for use in cordless telephone equipment. It is a compander IC incorporating compressor/expander circuits for a significant noise reduction effect without complicated external circuitry. On the transmission side, the dynamic range of audio signals is compressed by the compressor circuit; on the receiving side, the expander expands the signals. As a result the dynamic range over the transmission channel is reduced logarithmically by one-half. Features 1. Can be driven at low voltages (down to 2.0V) 2. Internal mute function 3. Internal limiter (IDC) function 4. Compressor input can be switched between MIC and LINE 5. Internal standby function 6. Data input, output pins 7.