RD-HD5MD/HD7
15
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Pin Description
83
ADRT
I
Voltage input for the upper limit of the A/D converter operating range.
84
ADRB
I
Voltage input for the lower limit of the A/D converter operating range.
85
SE
I
Sled error signal input.
86
TE
I
Tracking error signal input.
87
AVD2
-
Analog power supply.
88
AVS2
-
Analog GND.
89
DCHG
I
Connect to the low-impedance power supply.
90
APC
I
Error signal input for laser digital APC.
91
ADFG
I
ADIP binary FM signal input.
92
VDIO1
-
I/O power supply.
93
VSIO1
-
I/O GND.
94
F0CN
O
Current source setting output for RF amplifier.
95
VDC3
-
CORE power supply.
96
VSC3
-
CORE GND.
97
XLRF
O
Control latch signal output for RF amplifier.
98
CKRF
O
Control clock signal output for RF amplifier.
99
DTRF
O
Control data signal output for RF amplifier.
100
APCR
O
Reference PWM output for laser APC.
101
LDDR
O
PWM output for laser digital APC.
102
TRDR
O
Tracking servo drive PWM output (-).
103
TFDR
O
Tracking servo drive PWM output (+).
104
FFDR
O
Focus servo drive PWM output (+).
105
FRDR
O
Focus servo drive PWM output (-).
106
FS4
O
4Fs output.
107
SRDR
O
Sled servo drive PWM output (-).
108
SFDR
O
Sled servo drive PWM output (+).
109
SPRD
O
Spindle servo drive output. (PWM (-) or polarity)
110
SPFD
O
Spindle servo drive output. (PWM (+) or PWM absolute value)
111
FGIN
I
Spindle CAV servo FG input.
112~114
TST(1~3)
I
Test. Connect to GND.
115
EFMO
O
Low during playback. EFM (encoding data) output during recoding.
116
VDIO2
-
I/O power supply.
117
VSIO2
-
I/O GND.
118
VDC4
-
CORE power supply.
119
VSC4
-
CORE GND.
120
MDDT1
I
MD DATA mode 1 switching input. (Low : normal mode, High : MD-DATA mode 1)
Port No.
Port Name
I/O
Description
Active
H
L
1
I
I
RF signal (I) input.
2
J
I
RF signal (J) input.
3
VC
O
Center voltage input.
4~7
A~D
I
Current input pin of main beam servo signal (A~D).
8, 9
E, F
I
Current input pin of main beam servo signal (E,F).
10
PD
I
APC amplifier input.
11
APC
O
Laser APC output.
12
APCREF
I
Reference voltage input for laser power setting.
13
GND
-
GND
14
TEMP I
I
Temperature sensor connection pin.
15
TEMP R
I
Temperature sensor connection pin (outputs reference voltage).
16
SWDT
I
Control data signal input from DSP (IC1).
17
SCLK
I
Control clock signal input from DSP (IC1).
18
XLAT
I
Control latch signal input from DSP (IC1).
Latch
19
XSTBY
I
Standby setting pin.
Normal ope.
Standby
6-7 MD RF AMP : CXA2523AR (X33, IC2)
