ne572d NXP Semiconductors, ne572d Datasheet

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ne572d

Manufacturer Part Number
ne572d
Description
Programmable Analog Compandor
Manufacturer
NXP Semiconductors
Datasheet
1.NE572D.pdf (8 pages)

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Philips Semiconductors RF Communications Products
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.
ORDERING INFORMATION
ABSOLUTE MAXIMUM RATINGS
October 7, 1987
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)
V
T
P
A
CC
D
Programmable analog compandor
SYMBOL
Supply voltage
Operating temperature range
Power dissipation
NE572
SA572
DESCRIPTION
PARAMETER
FEATURES
APPLICATIONS
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—6 V typical
Wide supply voltage range—6V-22V
System level adjustable with external
components
Dynamic noise reduction system
Voltage control amplifier
Stereo expandor
Automatic level control
High-level limiter
Low-level noise gate
State variable filter
–40 to +85
RATING
0 to +70
500
22
2
TEMPERATURE RANGE
–40 to +85 C
–40 to +85 C
–40 to +85 C
0 to +70 C
0 to +70 C
UNIT
V
mW
DC
C
PIN CONFIGURATION
ATTACK CAP A
TRACK TRIM A
RECOV. CAP A
NOTE:
1. D package released in large SO (SOL) package
THD TRIM A
RECT. IN A
only.
G OUT A
G IN A
GND
ORDER CODE
D
1
2
3
4
5
6
7
8
1
NE572D
NE572N
SA572D
SA572N
SA572F
, N, F Packages
Product specification
NE/SA572
853-0813 90829
16
15
14
13
12
11
10
9
TRACK TRIM B
RECOV. CAP B
RECT. IN B
ATTACK CAP B
THD TRIM B
V
G OUT B
G IN B
DWG #
CC
0005
0406
0005
0582
0406

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ne572d Summary of contents

Page 1

... G OUT ATTACK CAP B G OUT THD TRIM THD TRIM GND NOTE package released in large SO (SOL) package only. ORDER CODE DWG # NE572D 0005 NE572N 0406 SA572D 0005 SA572F 0582 SA572N 0406 853-0813 90829 ...

Page 2

Philips Semiconductors RF Communications Products Programmable analog compandor BLOCK DIAGRAM R1 (7,9) 6.8k (6,10) 500 (3,13) 270 (16) P.S. (8) DC ELECTRICAL CHARACTERISTICS Standard test conditions (unless otherwise noted 100mV at 1kHz ...

Page 3

Philips Semiconductors RF Communications Products Programmable analog compandor TEST CIRCUIT 2.2 F 6.8k (7, (2,14 BUFFER (4,12) 2.2 F 3.3k (3,13) V RECTIFIER AUDIO SIGNAL PROCESSING IC COMBINES VCA ...

Page 4

Philips Semiconductors RF Communications Products Programmable analog compandor ...

Page 5

Philips Semiconductors RF Communications Products Programmable analog compandor + V REF A2 – Figure 2. Simplified Rectifier Schematic Q10 Q17 – 10k I R1 D11 D12 ...

Page 6

Philips Semiconductors RF Communications Products Programmable analog compandor AVG ) OUT ( =140 A) 1 Both the resistors R and ...

Page 7

Philips Semiconductors RF Communications Products Programmable analog compandor Basic Compressor Figure 5 shows the hook-up of the circuit as a compressor. The IC is put in the feedback loop of the OPA A . The system gain 1 expression is ...

Page 8

Philips Semiconductors RF Communications Products Programmable analog compandor RMS COMPRESSION IN 3.0V 547.6MV 400MV 100MV 10MV 1MV 100 October 7, 1987 2 EXPANDOR OUT INPUT TO G AND RECT Figure 6. NE572 System Level ...

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