BU38603 ROHM Co. Ltd., BU38603 Datasheet - Page 3

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BU38603

Manufacturer Part Number
BU38603
Description
System Control Servo
Manufacturer
ROHM Co. Ltd.
Datasheet

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Pin No.
Video ICs
Pin descriptions
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
8
9
CTLAMPOUT
CTLAMP –
HAMPSW
Pin name
DFGOUT
CFGOUT
RESETB
DFGIN
DPGIN
CFGIN
VHSW
AHSW
VSAD
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
ADC7
VDAD
VSSA
CTL –
CTL +
VDDA
TEST
PO5
PO4
PO3
P31
P30
P29
P28
P27
P26
P25
P24
P23
P22
V
ref
A / D convertor circuit GND.
Can be optionally mask – programmed
to be either A / D or parallel inputs.
A / D convertor circuit power supply.
Drum FG amplifier output
Drum FG amplifier input
Drum PG comparator input
Capstan FG amplifier input
Capstan FG amplifier output
Linear circuit GND
Internal BIAS and power-on reset pin
CTL amplifier – input
CTL amplifier output
CTL coil – connection
CTL coil + connection
Linear circuit power supply
Power supply reset
Test mode input (normally GND)
Parallel output
Parallel I / O
Parallel I / O and pattern generator
output
Parallel output and pattern generator output
Pattern generator VHSW output
Pattern generator AHSW output
Head amplifier switch output
Function
Pin No.
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
CLOCKO
COUNTP
BU38603 / BU38703 / BU38803
Pin name
CLOCKI
CHROT
CSYNC
PBCTL
ENVIN
PWM0
PWM1
PO2
PO1
PO0
SCK
P21
P20
P19
P18
P17
P16
P15
P14
P13
P12
P11
P10
V
V
SO
FV
P9
P8
P7
P6
P5
P4
P3
P2
P1
P0
SI
DD
SS
Chroma rotary switch output
Pseudo Vsync output
Logic circuit power supply
PWM output
Parallel I / O
Parallel output
For connection of oscillator
Logic circuit GND
Parallel I / O
Parallel I / O and external interrupt
Serial I / O data input
Serial I / O data I / O
Serial I / O clock I / O
Envelope detector logic input
Composite signal logic input
CTL counter pulse output
CTL logic output
Function
3

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