UTC571 查看數據表（PDF） - Unisonic Technologies

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UTC571

LINEAR INTEGRATED CIRCUIT / COMPANDER

Unisonic Technologies 

UTC571

LINEAR INTEGRATED CIRCUIT

COMPANDER

DESCRIPTION

The UTC571 is a versatile low cost dual gain control

circuit in which either channel may be used as a dynamic

range compressor or expandor. Each channel has a full-

wave rectifier to detect the average value of the signal, a

linerarized temperature-compensated variable gain cell,

and an operational amplifier.

The UTC571 is well suited for use in cellular radio and

radio communications systems, modems, telephone, and

satellite broadcast/receive audio systems.

FEATURES

• Complete compressor and expandor in one IChip

•Temperature compensated

•Greater than 110dB dynamic range

• Operates down to 6VDC

• System levels adjustable with external components

• Distortion may be trimmed out

• Dynamic noise reduction systems

• Voltage-controlled amplifier

DIP-16

APPLICATIONS

•Cellular radio

•High level limiter

•Low level expandor—noise gate

•Dynamic filters

•CD Player

PIN CONFIGURATION

RECT CAP 1 1

RECT IN 1 2

AG CELL IN 1 3

GND 4

INV.IN 1 5

RES.R3 1 6

OUTPUT 1 7

THD TRIM 1 8

16 RECT CAP 2

15 RECT IN 2

14 AG CELL IN 2

13 VCC

12 INV.IN 2

11 RES.R 3 2

10 OUTPUT 2

9 THD TRIM 2

YOUW ANG ELECTRONICS CO.LTD

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