V鈥?/div>
The SSM2120 is a monolithic integrated circuit designed for the
purpose of processing dynamic signals in various analog systems
including audio. This 鈥渄ynamic range processor鈥?consists of two
VCAs and two level detectors (the SSM2122 consists of two
VCAs only). These circuit blocks allow the user to logarithmically
control the gain or attenuation of the signals presented to the
level detectors depending on their magnitudes. This allows the
compression, expansion or limiting of ac signals, some of the
primary applications for the SSM2120.
PIN CONNECTIONS
22-Pin Plastic DIP
(P Suffix)
16-Pin Plastic DIP
(P Suffix)
THRESH 1 1
LOG AV 1 2
CON
OUT 1
3
SIG
OUT 1
4
+V
C1
5
CFT 1 6
22 GND
21 V+
20 SIG
OUT 2
19 +V
C2
GND 1
SIG
OUT 1
2
+V
C1
3
CFT 1 4
16 GND
15 V+
14 SIG
OUT 2
SSM2120
18 CFT 2
13 +V
C2
TOP VIEW
鈥揤
C1
5 (Not to Scale) 12 CFT 2
11 鈥揤
C2
10 SIG
IN 2
9 GND
SSM2122
TOP VIEW 17 鈥揤
C2
鈥揤
C1
7 (Not to Scale) 16 SIG
IN 2
15 REC
IN 2
14 CON
OUT 2
13 LOG AV 2
12 THRESH 2
SIG
IN 1
6
I
REF
7
V鈥?8
SIG
IN 1
8
REC
IN 1
9
I
REF
10
V鈥?11
REV. C
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reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
漏 Analog Devices, Inc., 1995
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Tel: 617/329-4700
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