54
HCD-RV22/RV55
Pin No.
Pin Name
I/O
Pin Description
112
L SENS
I
SENS signal input
113
SENS
O
SENS signal output
114
L SLCK
O
SENS serial data readout clock signal output
115
SCLK
I
SENS serial data readout clock signal input
116
VDD3
—
Digital power supply pin (+2.5 V) (for CD-DSP block)
117
ATSK
I/O
Input/output for anti-shock Not used. (Fixed at “L”.)
118
XUGF
O
XUGF signal output Not used. (Open)
119
XPCK
O
XPCK signal output Not used. (Open)
120
L GFS
I
Guard frame sync signal input
121
GFS
O
Guard frame sync signal output
122
VSS3
—
Digital ground pin
123
L CDC2PO
I
C2 pointer signal input
124
C2PO
O
C2 pointer signal output
125
L SCOR
I
Subcode sync (S0+S1) detection signal input
126
SCOR
O
Subcode sync (S0+S1) detection signal output
127
COUT
O
Numbers of track counted signal output Not used. (Open)
128
VDD4
—
Digital ground pin (for CD-DSP block)
129
MIRR
I/O
Mirror signal input/output Not used. (Open)
130
DFCT
I/O
Defect signal input/output Not used. (Open)
131
L FOK
I/O
Focus OK signal input/output
132
FOK
I/O
Focus OK signal input/output
133
MDP
O
Spindle motor servo drive signal output
134
VSS4
—
Digital ground pin
135
SSTP
I
Detection signal input from limit in swich
The optical pick-up is inner position when “H”
136
FSTO
O
2/3 frequency-division output of the XTAI (pin 149) Not used. (Open)
137
SFDR
O
Sled motor servo drive signal (+) output
138
SRDR
O
Sled motor servo drive signal (–) output
139
VDD5
—
Digital power supply pin (+2.5 V) (for CD-DSP block)
140
TFDR
O
Tracking coil servo drive signal (+) output
141
TRDR
O
Tracking coil servo drive signal (–) output
142
FFDR
O
Focus coil servo drive signal (+) output
143
FRDR
O
Focus coil servo drive signal (–) output
144
VSS5
—
Digital ground pin
O
Write frame clock signal output Not used. (Open)
O
Word clock signal output Not used. (Open)
I
Asymmetry circuit on/off control signal input “L”: off, “H”: on Not used. (Open)
—
Digital power supply pin (+2.5 V) (for CD-DSP block)
I
Main system clock input (33.8688 MHz)
O
Main system clock output (33.8688 MHz)
—
Digital ground pin
I
Input for the test Normally: fixed at “L”.
I
Input for the test Normally: fixed at “L”.
—
Not used. (pin 154: Open, Pin 155: Fixed at “L”.)
156
AVD0
—
Analog power supply pin (+2.5 V)
157
IGEN
I
Operational amplifier constant current input
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