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E2A0045-16-X1

隆 Semiconductor

隆 Semiconductor

MSM7577

Voice Signal Level Control LSI

This version: Jan. 1998

MSM7577

Previous version: Nov. 1996

GENERAL DESCRIPTION

The MSM7577 is an LSI for Audio Signal Level adjustment for telephone set, etc.

Conventionally, its circuit has been made within individual unit, such as amplifiers, resistors and

switches. However, using this LSI allows for simple mounting and economically small space.

FEATURES

Receiving system

鈥?Built-in electrical volume

Digital control (3 bit / 8 step)

鈥?For transmission voice, with side tone route available.

鈥?Mute function available.

Transmitting system

鈥?Built-in operational amplifier for transmission signal level adjustment.

鈥?Mute function available.

鈥?Single +2.7 V to +5.25 V power supply

鈥?Power down function

鈥?Package:

16-pin plastic SOP

(SOP16-P-300-1.27-K) (Product name : MSM7577MS-K)

APPLICATION

Cellular handset, cordless telephone, etc.

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