Denon DN-F450R, Service Manual, Page: 55 / 67

55
UPD4721GS-GJG +C (MAIN :IC102)
Note 1.
V
DD
and V
SS
are output pins stepped up internally. These pins should not be loaded directly.
2.
Capacitors C
1
to C
5
with a breakdown voltage of 20 V or higher are recommended. And it is
recommended to insert the capacitor that is 0.1
M
F to 1
M
F between V
CC
and GND.
3.
If V
CHA
is kept low level (in 5 V mode), capacitor C
5
is not necessary.
4.
The pull-up resistors at driver input are active resistors.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
D
IN1
D
IN2
R
OUT1
R
OUT2
STBY
V
CHA
D
OUT1
D
OUT2
R
IN1
R
IN2
V
DD
C
1
+
V
CC
C
1
–
C
5
+
C
5
–
C
4
+
GND
C
4
–
V
SS
+10 V
C
3
C
1
C
5
–10 V
+
C
2
C
4
+
+
+
Note 4
300
7
300 7
5.5 k 7
5.5 k
7
+3.3 V
or
+5 V
+