LA8638V Просмотр технического описания (PDF) - SANYO -> Panasonic

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LA8638V

Low-voltage Compander IC for Cordless Telephones

SANYO -> Panasonic 

Continued from preceding page.

Pin Number Pin Name Pin Voltage

Indeterminate

25

CMP-RCT (when there is

no signal)

LA8638V

Equivalent Circuit

26

MIC-OUT

VCC/2

27

MIC-IN2

VCC/2

28

MIC-IN1

VCC/2 power

supply

30

TX-LVL-ADj

VCC/2

I/O Characteristics

TX-OUT (pin 23)

Input level, VIN — dBV

Splatter Filter Frequency Characteristics

VCC = 2.4 V; resistance

Description

Full-wave rectifier output for compressor

block (AC smoothing)

Microphone amplifier output

Microphone amplifier negative input

Microphone amplifier positive input

Pin for setting amplification for transmitter

output level switching

Crosstalk Characteristics

RX → TX (pin 23)

TX-MUTE (pin 23)

TX → RX (pin 10)

RX-MUTE (pin 10)

Input level, VIN — dBV

Current Drain —. VCC

BTL on

BTL off

Frequency, f — kHz

Standby

Power supply voltage, VCC — V

No. 5776-11/16

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