IC BLOCK DIAGRAM& DESCRIPTION
IC101 LA9240ML (Servo Signal Processor)
No. Pin Name I/o
Function
No. Pin Name Uo Function
1 FIN2 I Connection Pinfor PhotoDirxfeof Pickup.
34
TGL I Input Pinfor Tracking Gain Control Signal from
2 FIN1 I FIN2 + FIN1 =
RF, FIN2 - FINI = FE
Digital Signal Processor. TGL = H : Gain Low
3 E I Connection Pin for Photo Diode of Pickup.
35
TOFF I Input Pin for Tracking Off Control Signal from Digtal
4
F I E- F=TE
Signal Processor. TOFF = H: OFF
5 TB I Input Pin for DC ingredientof TE Signal.
s
TES o Output Pin forTrack Error Sense Signal to Digital
6
TE-
1 Connection Pin for Gain Setting Resistor of TE
Signal Processor.
Sgnal to TE Signal Pin.
37
HFL
I High Frequency Level Signal Use Deted[on
7 TE
o Output ~n for Tracking Error Signal. Main-Beam Position is on the pit or mirror.
8
TESI
I Input Pin for Track Error Sense Comparator.
38 SLOF
I Input Pin for Sled Sefvo Ott Control.
TE Signal through Band Pass, and Inputted.
39
cv- 1 Input Pin for Constant Linear Veloaty Error
9
Scl
I
Input Pin for Shock Detef.Xon.
40
Cv+
I
Signal from Digital Signal Processor.
10 TH I Connection Pin for Time Constant Setting of
41 RFSM
o Output Pin for RF Signal.
Tracking Gain.
42 RFS-
1 connection Pin for Gain Setting of RF and
11 TA
o Output Pin for TA Amplifier.
Caw.tant Settingof 3T Compensation ofthe
12 TD-
1 Connection Pin for Constant Tracking Phase
EFM Signal with RFSM Pin.
Compensation, Consist of between TD and VR.
43 SLC
o SliceLevel Control Signal is Output Pin.
13 TD I Connection Pin for Constant of Traddng Phase
It Control Level of Data-SIii by Digital Signal
Compensation. Processor of the RF Waveform.
14 JP I Connection Pin for Amplitude Setting of Tracking 44 SLl
I Input Pin for Level Control of Data-Sfice by
Jump (Kick Pulse) Signal.
Digtal Signal Processor.
15 TO
o Output Pin for Tracking Control Signal.
45 DGND - Ground for Digital Signal.
16 FD
o
Output
Pin for Focusing Control Signal.
46
FSC
o
Output Pin for Focus Search Smooth Condenser
17
FD-
1 Connection Pin for Constant of Focusing Phase
47 TBC
o connection Pin for Variable Range Settingof
Compensation, Consistof between FD and FA. EF Balance.
18 FA+
I Connection Pin for Constant of Focusing Phase
48 NC - No Connect
Compensation, Consist of between FD- and FA-. 49
DEF
o
Output Pin for Defect Detection of Disc.
19 FA- 1 Connection Pin for Constantof Fccusing Phase
xl CLK I Input Pin for Reference Clod Pulse.
Compensation, Consist of between FA and FE. (4.23 MHz of Digital Signal Processor)
20
FE
o Output Pin for Focusing Error Signal.
51 CL 1 Input Pin of Clock Pulse for Command from
21 FE-
1 Connection Pin for Gain Setting Resistor of FE
Micro Processor.
Sgnal to FE Signal Pin.
S2 DAT i Input Pin of Data for Command from Micro
22 AGND
- Ground forAnalog Signal.
Processor.
a 8P
o CMputPin forSingle End of InputSignal ofthe
S3 CE
I Input Pin of Chip Enable for Command from Micro
CV+, CV- Pin.
Processor.
24 SPI I Input Pin for Spindle Amplifier.
54
DRF
o
Output
Pinfor Detect of RF Level.
25 SPG I Connection Pin for Gain Setting Resistor, when
56 FSS I Select Pin for Focus Search Mode
Spindle 12 cm Mode.
%
VCC2 - VCC for Servo and Digital Root.
26 sP- 1 Connection Pin for Omstanf of Spindle Phase
57 REFI
I Bus ControlConnection Pin for Reference Vottage.
Compensation with SPD Pin.
56
VR o Output Pin for Reference Voltage.
27 SPD
o
Output Pin for Spindle Control Signal. w LF2
I Connection Pin forTime Constant Setting of
26 SLEQ I Connection Pin for Constantof Sfed Phase
Detect Detection of the Disc.
Compensation.
e)
PH1 I Capacitor Connection Pin for P@-hold of RF Signal.
29 SLD
o 0
utput
Pinfor Sled Control Signaf.
61
BHI I Capacitor Connection Pin for Bottom-holdof
30
SL- 1 Input Pin for Sled Signal from Micro Prwessor. RF Signal.
31 SL+ I
62 LDD
o Output Pin of APC (Automatic Power Control) Circuit.
3 JP- 1 Input Pin for Tracking Jump Signal from Digital
63 LDS I Input Pin of APC (Automatic Power Control) Circuit.
33 JP+ I Signal Processor.
64
Vccl I VCC for RF Root.
—-
.
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