AN8473SA
s
Application Circuit Example
( Check the stipulated value of electrical characteristics
and then determine resistance value.)
ICs for Compact Disc/CD-ROM Player
5V
12
VPUMP
0.1
µF
100
µF
0.1
µF
16
V
DD
14
BC2
Start
100
Ω
11
Start/
stop
Step-up
voltage
circuit
OSC
Thermal
protection
13
BC1
17
VM21
18
VM22
32
VM11
31
VM12
2 200 pF
10
FG
H1H
7
H1L
6
H2H
5
H2L
4
H3H
3
H3L
2
VH
1
100Ω
Hall
bias
Hall amp.
matrix
Amp.
Distributor
circuit
PWMOUTU
Amp.
PWMOUTL
FF
Absolute
value
PWM
frequency
changeover
circuit
V
T
SRESET
SSET
V
C1
X5
Output
circuit
27
A11
28
A12
24
A21
25
A22
21
A31
22
A32
23
PG2
26
PG1
19
CS
15
GND
R
CS
=
0.33
Ω
8
Spindle speed EC
control signal ECR 9
PWMSW 30
High: 40 kHz
Low: 80 kHz
6