SA571
Compandor
The SA571 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 SA571 is well suited for use in cellular radio and radio
communications systems, modems, telephone, and satellite
broadcast/receive audio systems.
http://onsemi.com
MARKING
DIAGRAMS
Features
•
•
•
•
•
•
•
•
•
16
Complete Compressor and Expandor in one IChip
Temperature Compensated
Greater than 110 dB Dynamic Range
Operates Down to 6.0 VDC
System Levels Adjustable with External Components
Distortion may be Trimmed Out
Dynamic Noise Reduction Systems
Voltage Controlled Amplifier
Pb−Free Packages are Available*
16
1
SOIC−16 WB
D SUFFIX
CASE 751G
1
16
16
SA571N
AWLYYWWG
1
Applications
•
•
•
•
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SA571D
AWLYYWWG
PDIP−16
N SUFFIX
CASE 648
Cellular Radio
High Level Limiter
Low Level Expandor − Noise Gate
Dynamic Filters
CD Player
1
A
WL
YY
WW
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
PIN CONNECTIONS
D, and N Packages*
RECT CAP 1
1
16
RECT CAP 2
RECT IN 1
2
15
DG CELL IN 1
3
14
RECT IN 2
DG CELL IN 2
VCC
GND
4
13
INV. IN 1
RES. R3 1
5
12
INV. IN 2
6
11
RES. R3 2
OUTPUT 1
7
10
OUTPUT 2
THD TRIM 1
8
9
THD TRIM 2
TOP VIEW
*SOL − Released in Large SO Package Only.
ORDERING INFORMATION
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
March, 2006 − Rev. 4
1
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
Publication Order Number:
SA571/D
