Description

Operating voltage range

COMP output deviation (Typ)

EXP output deviation (Typ)

COMP output noise(Typ)

EXP output noise(Typ)

Packaging form

Is a gain adjustable compression and expansion circuit in which one channel can be used for expansion and the other channel can be used for compression or expansion. The circuit contains small signal full wave rectification, the size of the test signal, which is used to adjust the gain of the input or feedback channel, the band gap precision reference source with good temperature characteristics, and the noise function.

1.8V ~ 5V

-1dB~1dB

-1dB~1dB

0.8mV

60μV

SOP14/DIP14

Noise reduction circuits used in, for example, cordless telephones. The interior contains a compressor and an expander. The compression expander reduces transmission noise and extends the received signal by compressing and transmitting the input signal.

2.4V~7V

-0.5dB~0.5dB

-1.5dB~1.5dB

3mV

10μV

SOP20/DIP20

Speech compression expander circuit, including signal rectifier unit, variable gain unit, operational amplifier and other circuit units, suitable for cordless telephone and other products for speech compression and expansion.

1.8V~9V

-0.4dB~0.6dB

-1.1dB~0.9dB

0.5mV

15μV

SOP16/DIP16

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