36
MDS-JB980
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112 to 114
115
116
117
118
119
120
Description
Pin No.
Pin Name
I/O
DCHG
APC
ADFG
VDIO1
VSIO1
F0CNT
VDC3
VSC3
XLRF
CLRF
DTRF
APCR
LDDR
TRDR
TFDR
FFDR
FRDR
FS4
SRDR
SFDR
SPRD
SPFD
FGIN
TST1 to TST3
EFMO
VDIO2
VSIO2
VDC4
VSC4
MDDT1
I (A)
I
I
—
—
O
—
—
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
I
O
—
—
—
—
I
Connected to +3 V power supply
APC error signal input (Not used.) (Fixed at “H”.)
ADIP duplex FM signal input from the CXA2523AR (IC101)
Power supply pin (+3.3 V)
Ground pin
Filter f0 control output to the CXA2523AR (IC101)
Power supply pin (+2.6 V)
Ground pin
Control latch signal output to the CXA2523AR (IC101)
Control clock signal output to the CXA2523AR (IC101)
Control data signal output to the CXA2523AR (IC101)
Reference PWM output for the laser APC
PWM output for the laser digital APC (Not used.) (Open)
Tracking servo drive PWM output (–)
Tracking servo drive PWM output (+)
Focus servo drive PWM output (+)
Focus servo drive PWM output (–)
4Fs clock signal output (Not used.) (Open)
Sled servo drive PWM output (–)
Sled servo drive PWM output (+)
Spindle servo drive PWM output (–)
Spindle servo drive PWM output (+)
Spindle CAV servo FG signal input (Fixed at “L”.)
Test input (Fixed at “L”.)
EFM output when recording
Power supply pin (+3.3 V)
Ground pin
Power supply pin (+2.6 V)
Ground pin
MD data mode1 switching signal input (Fixed at “L”.)
• Abbreviation
EFM: Eight to Fourteen Modulation
