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IC802 VHiTC9462F/-1: Servo/Signal Control (TC9462F) (3/3)
Input/Output
Pin No.
Port Name
83
DVDD
84
DVR
85
LO
86
DVSL
87*
TEST1
88*
TEST2
89*
TEST3
90-93
BUS0-BUS3
Input/Output
94
VDD
95
VSS
96
BUCK
97
/CCE
98*
TEST4
99*
/TSMOD
100
/RST
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
IC802 VHiTC9462F/-1: Servo/Signal Control (TC9462F)
PLL
LPFN
TMAX
LPFO
PVREF
VCO
VCOREF
VCOF
AVSS
SLCO
Data
slicer
RFI
AVDD
RFCT
RFZI
RFRP
FEI
SBAD
TSIN
TEI
TEZI
FOO
D/A
TRO
VREF
Input
D/A converting section power terminal.
Input
Reference voltage terminal.
Output
L channel data forward rotation output terminal.
Input
L channel D/A converting section power terminal.
Input
Test mode terminal. To be opened usually.
Input
Test mode terminal. To be opened usually.
Input
Test mode terminal. To be opened usually.
Microcomputer interface data input/output terminal.
Input
Digital + power terminal.
—
Digital ground terminal.
Input
Microcomputer interface clock input terminal.
Input
Microcomputer interface chip enable signal input terminal. "L": BUS0 to 3 is active.
Input
Test mode termina. To be opened usually.
Input
Local test mode selection terminal.
Input
Reset signal input terminal. "L": Reset.
Sub-code
Status
demodulation
circuit
CLV
servo
Digital equalizer
adjustment circuit
Servo control
PWM
Figure 53 BLOCK DIAGRAM OF IC
Function
Digital
out
16KRAM
Address
circuit
Clock
generator
– 53 –
XL-3000W
/RST
Audio output
/TSMOD
circuit
TEST4
/CCE
BUCK
VSS
VDD
BUS3
Correction
circuit
BUS2
BUS1
BUS0
TEST3
TEST2
TEST1
DVSL
LO
DVR
1Bit
DVDD
DAC
RO
DVSR
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