KK3340
Figure 1. Typical DC Remote Volume Control
VCC
8
1.0u
KK3340
1
7
2
50u
3
6
620pF
e
o
Remotely
Located
Potentiometer
50k
Rc
ELECTRICAL CHARACTERISTICS (e
in
= 100 mVrms, f = 1.0 kHz, V
CC
= 16 Vdc,
T
A
= +25
O
C, unless otherwise noted)
Circuit
VCC
1.0u
1
e
in
8
7
KK3340
2
e
o
3
6
620pF
+
50uF
+
V2
-
Characteristics
Operating Power Supply Voltage
Control Terminal Sink Current, Pin 2
(e
in
= 0)
Maximum Input Voltage
Voltage Gain
Attenuation range from Maximum
Gain (V2 = 6.5 Vdc)
Total Harmonic Distortion (Pin 2 Gnd)
(e
in
= 100 mVrms, e
o
= A
v
* e
in
)
Attenuation Point A
v
= 20 dB
Min
0.8
-
-
11
70
-
4.44
Typ
-
-
-
13
80
0.6
4.68
Max
18
2.0
0.5
-
-
1.0
4.92
Unit
Vdc
mAdc
Vrms
dB
dB
%
Vdc
Figure 2. Circuit Schematic
8
VCC
5.1k
5.1k
6.2k
5.1k
6
Roll-off
4.7k
750
750
5.1k
10k
3.9k
200
7
Output
2
Control
3
1
Input
20k
510
1.3k
5.1k
5.1k
1.5k
510
2
KODENSHI [ KODENSHI KOREA CORP. ]
