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Philips - Programmable analog compandor

Numéro de référence SA572
Description Programmable analog compandor
Fabricant Philips 
Logo Philips 





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SA572 fiche technique
Philips Semiconductors RF Communications Products
Programmable analog compandor
Product specification
NE/SA572
DESCRIPTION
The NE572 is a dual-channel,
high-performance gain control circuit in which
either channel may be used for dynamic
range compression or expansion. Each
channel has a full-wave rectifier to detect the
average value of input signal, a linearized,
temperature-compensated variable gain cell
(G) and a dynamic time constant buffer. The
buffer permits independent control of
dynamic attack and recovery time with
minimum external components and improved
low frequency gain control ripple distortion
over previous compandors.
The NE572 is intended for noise reduction in
high-performance audio systems. It can also
be used in a wide range of communication
systems and video recording applications.
FEATURES
Independent control of attack and recovery
time
Improved low frequency gain control ripple
Complementary gain compression and
expansion with external op amp
Wide dynamic range—greater than 110dB
Temperature-compensated gain control
Low distortion gain cell
Low noise—6µV typical
Wide supply voltage range—6V-22V
System level adjustable with external
components
PIN CONFIGURATION
D1, N, F Packages
TRACK TRIM A 1
RECOV. CAP A 2
RECT. IN A 3
ATTACK CAP A 4
G OUT A 5
THD TRIM A 6
G IN A 7
GND 8
16 VCC
15 TRACK TRIM B
14 RECOV. CAP B
13 RECT. IN B
12 ATTACK CAP B
11 G OUT B
10 THD TRIM B
9 G IN B
NOTE:
1. D package released in large SO (SOL) package
only.
APPLICATIONS
Dynamic noise reduction system
Voltage control amplifier
Stereo expandor
Automatic level control
High-level limiter
Low-level noise gate
State variable filter
ORDERING INFORMATION
DESCRIPTION
16-Pin Plastic Small Outline (SO)
16-Pin Plastic Dual In-Line Package (DIP)
16-Pin Plastic Small Outline (SO)
16-Pin Ceramic Dual In-Line Package (Cerdip)
16-Pin Plastic Dual In-Line Package (DIP)
TEMPERATURE RANGE
0 to +70°C
0 to +70°C
–40 to +85°C
–40 to +85°C
–40 to +85°C
ORDER CODE
NE572D
NE572N
SA572D
SA572F
SA572N
DWG #
0005
0406
0005
0582
0406
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
VCC Supply voltage
TA Operating temperature range
NE572
SA572
PD Power dissipation
RATING
22
0 to +70
–40 to +85
500
UNIT
VDC
°C
mW
October 7, 1987
2 853-0813 90829
Free Datasheet http://www.datasheet4u.com/

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