HA13631T Datasheet, PDF (5/20 Pages) Hitachi Semiconductor – CD-ROM Combo Driver

Block Diagram
HA13631T
U V W CT
27
31
32
33
34
35
26
COMM 23
VCTL 36
BRKSEL 24
CE 25
Rt
38
39
Ct1
REFIN 37
OP1IN 53
FCSIN 52
OP2IN 44
TRKIN 45
OP3IN 3
SLDIN 2
OP4IN 4
TRYIN 6
VSS FGOUT
43
22
EXTCOM
21
Zero cross
detection
CLK
Logic
VSPN
30
U
1.5 A
SPN V
output
W
ENABLE
SPN
FCS
TRK
SLD
TRY
CLK
OSC
CLK
PWM
control
OTSD
Vref
PWM
carrier
Vbst
Bias
+
− _OP1
+
− _OP2
+
− _OP3
PWM
control
PWM
control
Vbst
P
FCS
N
Vbst
P
TRK
N
PWM
control
Vbst
P
SLD
N
+
− _OP4
5k
42 1 28
SGND
PWM
control
Vbst
29 56
P
TRY
N
9
17
19
20
Rnf
18
C104
41
40
Ct2
16
C103
15 ^BP2
14 _BP1
13
49 VFCS
50
51
C103
47
46
48
5 VSLD
7
M
8
54
55
10 VTRY
11
M
12
5