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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 ...