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NJM2172V Datasheet

  • NJM2172V

  • OPERATIONAL AMPLIFIER WITH EVR

  • 16頁

  • NJRC

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NJM2172
OPERATIONAL AMPLIFIER WITH EVR
s
GENERAL DESCRIPTION
The NJM2172 is single supply, dual OP-AMP with
electric variable resistor (EVR), which contains buffer
amplifier, OP-AMP, reference voltage circuit, EVR and EVR
control circuit.
+
The reference is fixed around 1/2 V level internally, and
only required few external parts.
The A and B EVR is control separately, and amp drive
up to 100鈩?typ.) load. The NJM2172 is suitable for
camcorder, CD, MD, and other audio signal process
system.
s
FEATURES
q
Low Power Supply Voltage
q
Low Operating Current
q
A/Bch EVR adjust is separately
q
EVR range
q
Drivability
q
Bipolar Technology
q
Package Outline
s
BLOCK DIAGRAM
s
PACKAGE OUTLINE
NJM2172V
V
+
= 2.7 to 5.5V
Icc = 5.0mA typ.
-3.0 to -95錕?frac12;錕紹
100
鈩?/div>
typ.
SSOP14
s
PIN CONFIGURATION
1: OP
+IN
A
2: OP
-IN
A
3: OP
OUT
A
4: EVR
OUT
A
5: V
CNT
A
6: V
CNT
B
+
7: V
8: GND
9: Vref
10:REF
IN
11:EVR
OUT
B
12:OP
OUT
B
13:OP
-IN
B
14:OP
+IN
B
14
13
12
Bch
VCA
11
10
9
8
Bch OPAMP
Bch EVR
Ach EVR
Ach OPAMP
Ach
VCA
Bch EVR AMP VREF AMP
Bch EVR Control
Ach EVR Control
Ach EVR AMP
1
2
3
4
5
6
7
-1-

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