– 21 –
Pin No.
Pin name
I/O
Pin Description
56
AVSS
—
Ground terminal.
57
PDO
—
Not used (Open).
58
PCO
O
Decoder PLL master clock PLL phase comparison output.
59
FILI
I
Decoder PLL master clock PLL filter input.
60
FILO
O
Decoder PLL master clock PLL filter output.
61
CLTV
I
Decoder PLL master clock PLL VCO control voltage input.
62
PEAK
I
Inputs peak hold signal for light amount signal from RF amplifier (IC501).
63
BOTM
I
Inputs bottom hold signal for light amount signal from RF amplifier (IC501).
64
ABCD
I
Light amount signal from RF amplifier (IC501).
65
FE
I
Input focus error signal from RF amplifier (IC501).
66
AUX1
I
Input of auxiliary signal from RF amplifier (IC501).
67
VC
I
Input of middle point voltage (+1.4 V) from RF amplifier (IC501).
68
ADIO
—
Not used (Open).
69
AVDD
—
Power supply (+2.8 V) for analog.
70
ADRT
—
Not used (Connect to +2.8 V).
71
ADRB
—
Not used (Connect to ground).
72
AVSS
—
Ground terminal.
73
SE
I
Input of sled error signal from RF amplifier (IC501).
74
TE
I
Input of tracking error signal from RF amplifier (IC501).
75
AUX2
—
Not used (Connect to +2.8 V).
76
DCHG
—
Not used (Connect to +2.8 V).
77
APC
—
Not used (Connect to +2.8 V).
78
ADFG
I
Input of ADIP dual FM signal from RF amplifier (IC501) (22.05 kHz ± 1 kHz).
(TTL Schmit input)
79
FO CONT
O
Focus control output to RF amplifier (IC501).
80
XLRF
I
Latch signal input from RF amplifier (IC501).
81
CKRF
O
RFCK clock (7.35 kHz) signal output.
82
DTRF
I
Serial data input from RF amplifier (IC501).
83
APCREF
I
Laser power setting signal input.
84
LDDR
—
Not used (Open).
85
TRDR
O
Tracking servo drive signal output (–).
86
TFDR
O
Tracking servo drive signal output (+).
87
DVDD
—
Power supply (+2.8 V) for digital.
88
FFDR
O
Focus servo drive signal output (+).
89
FRDR
O
Focus servo drive signal output (–).
90
FS4
O
176.4 kHz clock signal output (MCLK).
91
SRDR
O
Sled servo drive signal output (–).
92
SFDR
O
Sled servo drive signal output (+).
93
SPRD
O
Spindle servo drive signal output (–).
94
SPFD
O
Spindle servo drive signal output (+).
95
FGIN
I
FG signal input from spindle motor driver (IC761).
96
TEST1
—
Not used (Connect to ground).
97
TEST2
—
Not used (Connect to ground).
98
TEST3
—
Not used (Connect to ground).
99
DVSS
—
Ground terminal.
100
EFMO
O
EFM recording signal output.
