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XL-30V
IC802 VHiTC9490F/-1: Servo/Signal Control (TC9490F) (2/2)
Pin No.
Port Name
39
AVDD3
40
FMO
41
DMO
42
VSS3
43
VDD3
44
TESIN
45
XVSS3
46
XI
47
XO
48
XVDD3
49
DVSS3
50*
RO
51
DVDD3
52
DVR
53*
LO
54
DVSS3
55*
ZDET
56
VSS5
57-60
BUS0-BUS3
61
BUCK
62
/CCE
63
/RST
64
VDD5
Note:
Al/F:
Analogue input/output terminal
3-51/F: 3-5 interface built-in terminal (5 V system input/output terminal)
31/F:
3V system input/output terminal
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
DVss
RO
DV
DD3
DVR
LO
DVss
ZDET
Vss
BUS0
BUS1
BUS2
BUS3
BUCK
/CCE
/RST
V
DD5
Input/Output
—
Analog 3.3 V power terminal.
Output
Feed equalizer output terminal.
Output
Disc equalizer output terminal.
—
Digital GND terminal.
—
Digital 3.3 V power terminal.
Input
Test input terminal. Normally fixed to "L".
—
GND terminal for system clock oscillation circuit.
Input
System clock oscillation circuit input terminal.
Output
System clock oscillation circuit output terminal.
—
3.3 V power terminal for system clock oscillation circuit.
—
GND terminal for DA converter
Output
R channel data normal output terminal.
—
3.3 V power terminal for QA converter.
—
Reference voltage terminal.
Output
L channel data normal output terminal.
—
DA converter unit GND terminal.
Output
1 bit DA converter 0 detection flag output terminal.
—
GND terminal for microcomputer interface.
Input/Output
Data input/output terminal for microcomputer interface.
Input
Clock input terminal for microcomputer interface.
Input
Chip enable signal input terminal for microcomputer interface. When "L", BUS3-0 is active.
Input
Reset signal input terminal. When reset, "L".
—
5V power terminal for microcomputer interface.
48
47
46
45
44
49
3
Clock
50
Generator
51
LPF
52
1-bit
DAC
53
54
3
55
56
5
57
58
59
60
Audio
61
Output Circuit
62
63
64
1
2
3
4
5
Figure 54 BLOCK DIAGRAM OF IC
43
42
41
40
39
38
37
PWM
Servo
Control
ROM
Digital equalizer
Address
automatic adjusting
Circuit
RAM
circuit
CLV Servo
16 k
RAM
Synchronized signal
protection
EFM demodulation
Digital
Out
Subcode
Demodulation
Circuit
6
7
8
9
10
11
12
– 54 –
Function
36
35
34
33
TEZI
32
-
31
TEI
D/A
30
SBSD
FEI
29
A/D
-
RFRP
28
27
RFZI
-
26
RFCT
25
AV
DD3
24
RFI
Data
Slicer
23
SLCO
22
AV
SS3
VCO
21
VCOF
20
PV
REF
19
LPFO
PLL
TMAX
+
18
LPFN
17
TMAX
13
14
15
16
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