— 51 —
Pin No.
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
82
83
84
I/O
—
O
O
O
O
O
I/O
I/O
I/O
I/O
I (S)
O
I (A)
—
I (A)
I (A)
—
O (3)
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)
O
O
O
Description
Ground terminal (digital system)
Output enable signal output to the external D-RAM
Column address strobe signal output to the external D-RAM
Address signal output to the external D-RAM
Row address strobe signal output to the external D-RAM
Write enable signal output to the external D-RAM
Two-way data bus for the external D-RAM
Digital in PLL oscillation input from the external VCO (fixed at “L”)
Playback EFM full-swing output
Playback EFM asymmetry comparator voltage input
Power supply terminal (+3.3V) (analog system)
Playback EFM asymmetry circuit constant current input
Playback EFM RF signal
Ground terminal (analog system)
Phase comparison output for clock playback analog PLL of the playback EFM (Not used)
Phase comparison output for master clock of the recording/playback EFM master PLL
Filter input for master clock of the recording/playback master PLL
Filter output for master clock of the recording/playback master PLL
Internal VCO control voltage input of the recording/playback master PLL
Light amound signal (RF/ABCD) peak hold input from the CXA2523R (IC101)
Light amount signal (RF/ABCD) bottom hold input from the CXA2523R (IC101)
Light amount signal (ABCD) input from the CXA2523R (IC101)
Focus error signal (I
3
signal/temperature signal) input from the CXA2523R (IC101)
Auxiliary signal (I
3
signal/temperature signal) input from the CXA2523R (IC101)
Middle point voltage (+1.65V) input from the CXA2523R (IC101)
Monitor output of the A/D converter input signal (Not used)
Power supply terminal (+3.3V) (analog system)
A/D converter operational range upper limit voltage input terminal (fixed at “H” in this set)
A/D converter operational range lower limit voltage input terminal (fixed at “L” in this set)
Ground system (analog system)
Sled error signal input from the CXA2523R (IC101)
Tracking error signal input from the CXA2523R (IC101)
Auxiliary signal input terminal (fixed at “L”)
Connected to the +3.3V power supply
Error signal input for the laser automatic power control (fixed at “L”)
ADIP duplex FM signal (22.05kHz±1kHz) input from the CXA2523R (IC101)
Filter f0 control signal output to the CXA2523R (IC101)
Serial latch signal output to the CXA2523R (IC101)
Serial clock signal output to the CXA2523R (IC101)
Writing data output to the CXA2523R (IC101)
Control signal output to the reference voltage generator circuit for the laser automatic power control
PWM signal output for the laser automatic power control (Not used)
Pin Name
DVSS
XOE
XCAS
A09
XRAS
XWE
D1
D0
D2
D3
MVCI
ASYO
ASYI
AVDD
BIAS
RFI
AVSS
PDO
PCO
FILI
FILO
CLTV
PEAK
BOTM
ABCD
FE
AUXI
VC
ADIO
AVDD
ADRT
ADRB
DTRF
APCREF
LDDR
* EFM : Eight to Fourteen Modulation
PLL
: Phase Locked Loop
VCO : Voltage Controll Oscillator
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9
2
8
9
4
2
9
8
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2
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8
0
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1
5
1
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6
7
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