— 64 —
Pin No.
I/O
Description
Pin Name
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
TEST1
ADFG
TS25
LDDR
TRDR
TFDR
FFDR
DVDD
FRDR
FS4
SRDR
SFDR
SPRD
SPFD
DCLO
DCLI
XDCL
OFTRK
COUT
DVSS
I
I
I
O
O
O
O
—
O
O
O
O
O
O
O
I
O
O
O
—
Test pin (Fixed at “L”)
Input of ADIP dual FM signal from RF amplifier (22.05 kHz
±
1 kHz)
(TTL Schmidt input)
Test pin (Fixed at “L”)
Laser APC signal output
Tracking servo drive signal output (–)
Tracking servo drive signal output (+)
Focus servo drive signal output (+)
Power supply (+5V) (Digital)
Focus servo drive signal output (–)
176.4 kHz clock signal output (MCLK) (Not used)
Sled servo drive signal output (–)
Sled servo drive signal output (+)
Spindle servo drive signal output (–)
Spindle servo drive signal output (+)
Not used normally
Not used normally (Fixed at “H”)
Not used normally
Off track signal output (Not used)
Traverse count signal output (Not used)
Ground (Digital)
