GL6552

1

EXP IN

VCC

EXP RECT

ALC

EXP OUT

IN

COMP OUT

C-ACF

COMP RECT

GND

COMP NF

GL6552

EXP MUTE

COMP MUTE

COMP IN

14 DIP, 14 SOP(150mil)

GL6552

Low Voltage Compander

General Descriptions

The GL6552 is a Compander IC, which

contains two variable gain circuits configured

for compressing and expanding the dynamic

range, and improving of S/N ratio of audio

signal. It consists of compressor, expander, Mic

Amp,

limiter,

ALC(Automatic

Level

Control)and mute logic. The compressor circuit

has the 2/1 ratio of input/output ratio by

logarithm,

and

the

expander

circuit

by

logarithm. An internal, temperature stable

bandgap reference provides the necessary

precision voltage and current. Applications

include cordless telephone and most voice RF

links.

Features

• Operating Supply Voltage: 2 ~ 6 V

• Built in ALC circuit

• Built in Mute logic circuit

• Easy gain control to use external component

Pin Configuration

.

)

Parameter

Symbol

Spec.

Unit

Remark

Max. Supply Voltage

7

V

Power Dissipation

600

mW

Storage Temperature

-55 ~+150

¡ É

Stress above those listed under “Absolute Maximum Rating” may cause permanent damage of device.

This is stress rating only and functional operation of the device at these or any other conditions above

those indicated in the operational sections of this specification is not implied.

Exposure to absolute maximum rating conditions for longer periods may affect device reliability.

must not exceed the values defined by the absolute maximum ratings.

Operating Conditions (Ta = 25¡ É

)

Parameter

symbol

Spec.

Unit

Remark

Operating Voltage

2 ~ 6

V

Operating Temperature

-20 ~ +70

¡ É