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— 33 —
Pin No.
Pin Name
I/O Description
47 FE I Focus error signal input
48 AUX1 I Support signal input (A/D input)
49 VC I Middle point voltage input
50 ADIO O Not used (open)
51 ADRT I A/D converter the upper limit voltage input
52
AVD2
—
AVDD
53
AV S2
—
AV SS
54
ADRB
I
A/D converter the lower limit voltage input
55
SE
I
Sled error signal input
56
TE
I
Tracking error signal input
57
DCHG
—
Connecting analog power supply of the low impedance
58
APC
I
Error signal input for the laser digital APC
59
DSPVDD0
—
Power supply (for DSP block)
60
DSPVSS0
—
Ground (for DSP block)
61
XTSL
I
X’tal oscillation frequency selection
62
DIN1
I
Not used (connected to ground)
63
DOUT
O
Not used (open)
64
PWMLP O Not used (open)
65
PWMLN
O
Not used (open)
66
PWMRP O Not used (open)
67
DADT/PWRRN O Not used (open)
68
ADDT
I
Not used (connected to ground)
69
LRCK O Not used (open)
70
XBCK O Not used (open)
71
FS256
O
Not used (open)
72
MVCI
I
Not used (connected to ground)
73
DSPVDD1
—
Power supply (for DSP block)
74
ADFG
I
ADIP duplex FM signal (20.05±1KHz) input
75
F0CNT
O
Not used (open)
76
DIFVDD0
—
Power supply (for DSP I/F)
77
DIFVSS0
—
Ground (for DSP I/F)
78
APCREF O
Output to the reference PWM for the laser APC
79
LDDR O Not used (open)
80
TRDR O Tracking servo drive PWM signal output (–)
81
TFDR O Tracking servo drive PWM signal output (+)
82
FFDR O Focus servo drive PWM signal output (–)
83
FRDR O Focus servo drive PWM signal output (+)
84
MCUVDD1
—
Power supply (for the microcomputer block)
85
FGIN I Not used (open)
86
FS4 O 176.4kHz clock signal output
87
SPRD/SPDU/
RTG0
O
Spindle servo drive output (PWM– or inertia)/Brushless spindle motor 3-phase drive logic
output (U)/RTG output 0
88
SPFD/SPVS/
PWM3
O
Spindle servo drive output (PWM+ or PWM absolute value)/Brushless spindle motor absolute
value PWM output/PWM3
89
SPDV/RTG1 O Brushless spindle motor 3-phase drive logic output (V)/RTG output 1
90
SPDW/RTG2 O Brushless spindle motor 3-phase drive logic output (W)/RTG output 2