© Semiconductor Components Industries, LLC, 2006

May, 2006 − Rev. 4

1

Publication Order Number:

NE570/D

NE570

Compandor

The NE570 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 NE570 is well suited for use in cellular radio and radio

communications systems, modems, telephone, and satellite

broadcast/receive audio systems.

Features

Applications

MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Maximum Operating Voltage

24

Operating Ambient Temperature Range

0 to +70

°C

Operating Junction Temperature

150

°C

Power Dissipation

400

mW

Thermal Resistance, Junction−to−Ambient

105

°C/W

Stresses exceeding Maximum Ratings may damage the device. Maximum

Ratings are stress ratings only. Functional operation above the Recommended

Operating Conditions is not implied. Extended exposure to stresses above the

Recommended Operating Conditions may affect device reliability.

DG CELL IN

RECT IN

1.8 V

THD TRIM

RECT CAP

INVERTER IN

OUTPUT

+

−

VARIABLE

GAIN

30 k

W

20 k

W

Figure 1. Block Diagram

RECTIFIER

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

http://onsemi.com

PIN CONNECTIONS

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

ORDERING INFORMATION

(Top View)

SOIC−16 WB

D SUFFIX

CASE 751G

RECT_IN_1

RECT_CAP_2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

16

15

RECT_CAP_1

DG_CELL_IN_1

INV_IN_1

GND

RES_R3_1

OUTPUT_1

THD_TRIM_1

RECT_IN_2

DG_CELL_IN_2

INV_IN_2

RES_R3_2

OUTPUT_2

THD_TRIM_2

1

MARKING

DIAGRAM

16

1

NE570D

AWLYYWWG

A

= Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

G

= Pb−Free Package

Plastic Small Outline Package;

16 Leads; Body Width 7.5 mm