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PDF KA22292Q Data sheet ( Hoja de datos )
| Número de pieza | KA22292Q | |
| Descripción | PB/REC EQ ST PRE AMP | |
| Fabricantes | Samsung | |
| Logotipo |  |
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PB/REC EQ ST PRE AMP
KA22292/Q
INTRODUCTION
The KA22292 is a monolithic integrated circuit consisting
of a playback and record processing stereo amplifier,
which is suitable for an audio system.
48-QFP-1010D/1010E
FEATURES
• 2CH Double input playback amplifier
• 2CH Recording Amplifier
• Bulit-in Recording Equalizer
• Tape selector
• ALC circuit
• Mute circuit
• Operating voltage (VCC = 6 V ~ 12 V)
ORDERING INFORMATION
Device Package Operating Temperature Pitch
KA22292 48-QFP-1010D
-20°C ~ +70°C
0.8mm
KA22292Q 48-QFP-1010E
-20°C ~ +70°C
0.75mm
BLOCK DIAGRAM
48 47 46 45 44 43 42 41 40 39 38 37
LINE OUT 1
REC NF 2
LINE IN 3
EQ & REC AMP
I
−
+
1.1V
EQ & REC AMP
36 LINE OUT
35 REC NF
34 LINE IN
ALC NF1 4
REC R/R 5
V/2 PR 6
VOLTAGE
REGULATOR
EQ CONTROL
ALC DETECTOR
ALC DRIVER
33 ALC NF2
32 DUB SW
31 IREF
ALC R/R 7
30 Cro2A SW
MUTE IN 8
Vcc 9
CONTROL • LOGIC
29 Cro2B SW
28 R/P SW
HEAD SW 10
MIXER OUT 11
27 A/B SW
10K 6K
26 FIL CAP
FILCAP 12
+
Cro2
−
300K
+
−
300K
Cro2
25 PB OUT2
13 14 15 16 17 18 19 20 21 22 23 24
Figure 1.
1 page  
PB/REC EQ ST PRE AMP
TEST CIRCUIT
KA22292/Q
10/16
VSG7 +−
2K
CL
RGL
1.3K
0.01µ
RGM
20.6K
2K TA43
+10/16
2K
TA42
+
10/16
RF/Q
127K
RFQ
33K
RGF
11K
CL
0.01µ
10/16
2K +− VSG6
48 47 46 45 44 43 42 41 40 39 38 37
TA1
1K +
10/16
10/16
10/16
VSG9 +−
+
2K
10/16
+
10/16
+
10/16
+
22/16
2MEG
SW7
MUTE =HIGH
ACTIVE
5V
1
2
3
4
5
6
7
8
EQ & REC AMP
I
−
+
1.1V
VOLTAGE
REGULATOR
EQ CONTROL
ALC DETECTOR
ALC DRIVER
CONTROL • LOGIC
Vcc CURRENT METER
9
Vcc
+
0.01V
DVM
TA11
10/16
10
10K
11
10K
12
6K
NN
10K
Cro2
+
−
300K
EQ & REC AMP
36 +
TA36
10/16
35 + 1K
10/16
34 +
10/16 2K +− VSGS
33
10/16
32
SW6
NORMAL SPEED-OPEN
HI-SPEED=SHORT
31 tot ADJUST
20K/SVR
30
SW4
A-DECK
Cro2=SHORT
29
SW3
B-DECK
Cro2=SHORT
28 SW2
REC=SHORT
5V PB=OPEN
27 SW1
A=SHORT
10K 6K
5V B=OPEN
26
0.01UF
+
− Cro2
25
300K
13 14 15 16 17 18 19 20 21 22 23 24
10/16
10K 10K 10/16 + 10/16 +
10/16 + 10/16 +
TA13
10K
10/16
10/16
TA15
100
10K 10/16
100
2K 2K
2K 2K
+− +− +− +−
VSG1 VSG2 VSG3 VSG4
1/16 10K
+
100 +
10/16
10/16 +TA23
100
10K
10K
10/16
+
TA25
10K
Figure 2.
5 Page 
PB/REC EQ ST PRE AMP
G
KA22292/Q
fp
fp =
1
2*π*(R1 + RZ)*C1
fz Freq.
fz =
1
2*π*RZ C1
2) High speed dubbings cutting function is defined R5, R6, C2
gain
t1
t2
frequency
HI(S) =
R6
R5 + R6
1
X S + C2R6
1
S+
C2(R6 + R6)
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet KA22292Q.PDF ] | |
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