-30-
IC BLOCK DIAGRAM -1/3
XA-DV1
C2
C1
B2
B1
A2
A1
SC
SI
Vcc
OUT2
OUT1
Surround
13
14
15
16
17
18
19
20
21
22
23
24
12
11
10
9
8
7
6
5
4
3
2
1
Tr e b l e1
f c = 8 k H z
Tr e b l e 2
f c = 8 k H z
B a s s
2
f
0
= 8 0 H z
Bass1
f
0
= 8 0 H z
Logic
Vcc/2
Vcc/2
Vcc/2
Vcc/2
Vcc/2
BD3871FS
0dB
~
–87dB
–•
50k
50k
50k
50k
50k
50k
SEL1
SEL2
Vin2
Vin1
GND
Filter
Bout1
BNF1
Bout2
BNF2
TFN2
TNF1
CAP
IC, BD3870FS
IC, BU9262AFS
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299