KIA6282K 데이터 시트보기 (PDF) - Tiger Electronic
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KIA6282K Datasheet PDF : 7 Pages
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D6282
TEST CIRCUIT & BLOCK DIAGRAM
Vcc1
12
Vcc2
3
C10
Vcc
2200uF
*C IN
IN - 1
Rf1
C1 82
47uF
C3
IN1
6
+
NF1
ch - 1
5
-
30
20K
Ripple
BIAS CIRCUIT
4
THERMAL SHUT DOWN
PROTECTION CIRCUIT
B.S.1
1
C4
1000uF
2
C6 C8 OUT - 1
*C IN
IN - 2
Rf2
C2 82
47uF
IN2
7
NF2
8
30
+
ch - 2
-
20K
9
GND
C9 1000uF
10
C5
C7 OUT - 2
11
B.S.2
* This IC can be used without coupling capacitor (CIN),If volume slide noise occurred by
input offset voltage is undesirable, it needs to use the capacitor(CIN).
APPLICATION INFORMATION AND APPLICATION METHOD
1. ADJUSTMENT OF VOLTAGE GAIN
The voltage gain Gv is obtained as
follows by R1,R2 and Rf in Fig.1.
Gv=20log((Rf+R1+R2)/(Rf+R1))
When Rf=0 Gv=56dB(Typ.)
When Rf=82Ω Gv=45dB(Typ.)
INPUT
6/7
Rf
R1
5/8
30
+
AMP
-
R2
20K
2/10
OUTPUT
By increasing Rf , reduction of Gv is
possible , However, since the feedback
Fig 1.
increase is liable to produce oscillation , it is recommended to use this at 40dB or
over.
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