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73
Function
Pin No.
Pin Name I/O
48
49
50, 51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
D1
D0
D2, D3
MVCI
ASYO
ASYI
AVDD
BIAS
RFI
AVSS
PCO
FILI
FILO
CLTV
PEAK
BOTM
ABCD
FE
AUX1
VC
ADIO
AVDD
ADRT
ADRB
AVSS
SE
TE
DCHG
APC
ADFG
F0CNT
XLRF
CKRF
DTRF
APCREF
TEST0
TRDR
Data input/output for DRAM
Clock input from an external VCO (Fixed at “L”)
Playback EFM duplex signal output
Playback EFM comparator slice level input
+3V power supply (Analog)
Playback EFM comparator bias current input
Playback EFM RF signal input
Ground (Analog)
Phase comparison output for the recording/playback EFM master PLL
Filter input for the recording/playback EFM master PLL
Filter output for the recording/playback EFM master PLL
Internal VCO control voltage input for the recording/playback EFM master PLL
Light amount signal peak hold input from the CXA2523R
Light amount signal bottom hold input from the CXA2523R
Light amount signal input from the CXA2523R
Focus error signal input from the CXA2523R
Auxiliary A/D input
Middle point voltage (+1.5V) input from the CXA2523R
Monitor output of the A/D converter input signal (Not used)
+3V power supply (Analog)
A/D converter operational range upper limit voltage input (Fixed at “H”)
A/D converter operational range lower limit voltage input (Fixed at “L”)
Ground (Analog)
Sled error signal input from the CXA2523R
Tracking error signal input from the CXA2523R
Connected to +3V power supply
Error signal input for the laser digital APC (Fixed at “L”)
ADIP duplex FM signal input from the CXA2523R (22.05 ± 1 kHz)
Filter f
0 control output to the CXA2523R
Control latch output to the CXA2523R
Control clock output to the CXA2523R
Control data output to the CXA2523R
Reference PWM output for the laser APC
PWM output for the laser digital APC (Not used)
Tracking servo drive PWM output (–)
I/O
I/O
I/O
I (S)
O
I (A)
—
I (A)
I (A)
—
O (3)
I (A)
O (A)
I (A)
I (A)
I (A)
I (A)
I (A)
I (A)
I (A)
O (A)
—
I (A)
I (A)
—
I (A)
I (A)
I (A)
I (A)
I (S)
O
O
O
O
O
O
O
• Abbreviation
EFM: Eight to Fourteen Modulation
PLL : Phase Locked Loop
VCO: Voltage Controlled Oscillator