ii
,.,.
’-.
IC BLCMCK DIAGRAM (CD)
ICIO1 IJWI1OM (Servo Signal Processor)
~
NO. PIN NAME
1/0
FUNCTION No. PIN NAME
1/0 FUNCTION
1 NC
Non Connection
41
NC
Non Connection
2
VEE -5V
42
JP-
1 -
Input of Track Jump Pulse Amp[lfier
3 E
I
IV Convert Input (from Photo D;ocie E)
43
JP+
I
+ Input of Track Jump Pulse Arnc’ ‘ier
4
F
I IV Convert Input (from Photo diode F)
44
THLD I
Hold of Output Voltage of Tracking Serv
—
5
FN
1 IV Converter Input
45
TGL
1.
Tracking Gain Low
6
FCl
o
IV Converter Output
46 TOFF I
Input For Off the Tracking Servo
7 TE&O
o
Tracking Error Ampl!fler Output
47
TES
o
Tracking Error Signal
8
VREF2
I
Reference Voltage 2
48
HFL o
Detect Track Signal
9
VRE!=3 I
Reference Voltage 3
49
FZD o
Detect S Carve of Focus Error Signal
10
TEST —
I
Test Input
50 FOCS I
Input For Off the Focus Servo
11 ATSC
I
+ Input of Anti Shock Detect Amplifier
51 CLV- 1 -
Input of CLV Error Amplifier
12
AT5C-
1 - Input of Anti Shock Detect Amplifier
‘ 52 CLV +
I
+ Input of CLV Error Amplifier
13
TPA -+
I -
Input of Tracking Pulse Amplifier
53 SLCO o
Slice Level Control Amplifier Output
14 TPA-
1
+ lnDut of Trackina Pulse Am Dlifier
54
—
EFMO i
EFMO (RF) Siqnal
15 TPAO o
Tracking Pulse Amplifier Output
55
Al
I I EFMO (RF) Signal
16 TOFS
I Input for Tracking Offset 56
VDD
I
+
5V
17 THDS
I
Trackina Servo Hold Switch 57 PDO I
+
Input of VCO Control Amplifier
18
TO++ I Add the Track Jump Pulse 58 PDO- 1 -
Input of VCO Control Amplifier
19 JPO
o
Track Jump Pulse Amplifier Output
59
Vcoc I
VCO Control Amplifier Output
20 SLEQ
I
Input for Sled Servo Equalizer 60 Vcoo o
Vco output
21 TDO
o
Tracking Actuator Coil Driver Output 61
LF1
I
Input of Low Pass Filter
22 FDO
o
Focus Actuator Coil Driver Output 62
CLK
I
Clock
23 FO-
1
Input :or Focus Actuator Coil Driver 63 LAS ER I
Laser Control Signal
24
FSW I Focus Servo Switch
64
66/60 I
Select of DSP LC7866 / LC7860
25 NC
Non Connection 65 NC
Non Connection
26
FEAO o
Focus Error Amplifier Output
66 DF2
I Input for Defect Pulse width Control
?7 FE +
I + Incwt of Focus Error Amcriifier 67 DF1 I
lnDut for Defect Pulse width Control
28
I
FD +
I
I
I
+
Input of Focus Actuator Coil Driver 68
I
PH3 I O
I Defect Detect Timing
291SP0
o CLV Error Amplifier Output
69 BH 1- I Track Detect Timing
1
30
I
sPo-
1
I
I
Input for Spindle Motor Driver
I
70
I
PH
I
I
I Focus Detect Timing
31 SPDO
o Spindle Motor Driver Output
71
GND
I Ground
32
VEE -5V
72 RF SUM o
RF SUM Amplifier Output
33 SLOO
o Sled Motor Driver Output
73
RFS- 0
IV Converter Output
34 SL-
1 -
input of Sled Motor Driver 74 LDO o
Laser Diode ON
35 SL+
[
+ Input of Sled Motor Driver 75
LDS
I
Input of Auto Laser Power Control
36
Vcc
+ 5V 76
LDC
I
Input of Auto Laser Power Control
37 SLSW
I
Sled Servo Switch
77 VDD
,+5V
38
DEFO o Defect Signal Output
78 FIN1 I IV Convert Input (From Photo Diode A+ C
39 2FREQ
I
Input for VCO 79 FIN2
I IV Convert Input (From Photo Diode B + D
! 40 I DRF I O I Focusina Servo ON : Hiah Level
II 80 I
VREFI I I I Reference Vo!taqe 1
ICI02 LA6524 (Dual Motor & Actuator Coil Driver)
<
OUT1 OUT2 VEE IN1 IN2 IN3 IN4 VCC 0uT3
OUT4
-20-
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