i
IC BLOCK DIAGRAM &DESCRIPTION
IC101 LA9220MS (Servo Signal Processor)
NO. IPIN NAMEII /01 FUNCTION
1FIN2 I I Connection Pin for Photo Diode of Pickup.
2iFIN1 I I tFIFJ2+FIN1 =RF. FIN2-FIN1 =FE
31E IiICorrne t“cIon Pin for Photo Diode of Pickup.
4FIIE-F= TE
5ITB IIIrmut Pin for DC ingredient of TE Sianal.
6TE- 1Connection Pin for Gain Setting Resistor of TI
Signal to TE Signal pin.
7TE oOutDut Pin for Trackina Error Sicmal .
8ITESI I I ]lnput Pi f
nor Track Error Sense Comparator. TI
ISignal through Band pass, and Inputted.
9IScl IiIInOut Pin for Shock Detection.
10 TH IConnection Pin for Time Constant Setting c
Tracking Gain.
11 TA oOutput Pin for TA Amplifier.
12 TD- 1Connection Pin for Constant of Tracking Phasl
Compensation, Consist of between TD and VR
13 TD IConnection Pin for Constant of Tracking Phase
Compensation.
14 JP IConnection Pin for Amplitude Setting of Track
ing Jump (Kick Pulse) Signal.
15 TO oOutput Pin for Tracking Controf Signal.
16 FD oOutout Pin for Focusina Control Sianal.
17 IFD- I I I Connection Pin for Constant of Focusing Phase
IICompensation, Consist of between FD and FA.
18 IFA+ I I Connection Pin for Constant of Focusing Phasf
II I Compensation, Consist of between FD- am
IIFA-.
19 ]FA- 1IConnection Pin for Constant of Focusing Phase
II I Compensation. Consist of between FA and FE.
20 IFE IOIOutput Pin for Focusing Error Signal .
21 FE- 1IConnection Pin for Gain Setting Resistor of FE
II I Sianal to FE Sianal ~in.
22 IAGND I-IGround for Anaioa Sianal.
23 ISP IOIOutput Pin for Single End of Input Signal of the
CV +, CV- Pin.
24 ISPI I I I Inout Pin for Soindle Amohfier.
25\ SPG I I [Connection Pin for Gain Setting Resistor, when
Spindle 12 cm Mode.
26 sP- 1Connection Pin for Constant of Spindle Phasf
Compensation with SPD Pin.
27 SPD oOulput Pin for Spindle Control Signal.
28 SLEQ IConnection Pin for Constant of Sled PhasE
Compensatian.
29 SLD oOutput Pin for Sled Control Signal.
30 SL- 1Input Pin for Sled Signal from Micro Processor.
31 ISL+ Ill
32 JP- 1:1
Input Pin for Tracking Jump Signal from Digital
33 JP +Sianal Processor.
34 TGL IInput Pin for Tracking Gain Control Signal from
Digital Signal Processor. TGL =H: Gain Low
No. IPIN NAME] I/0 ]FUNCTION
35 ITOFF IIInput Pin for Tracking Off Control Signal from
I I IDialtal Sianal Processor. TOFF =H: Off I
36 TES oOutput Pin for Track Error Sense Signal to
Digital Signal Processor.
37 HFL iHigh Frequency Level Signal use Detection
Main-Beam Position is on the oit or mirror.
I
38 SLOF IInput Pin for Sled Servo Off Control.
39 cv- 1Input Pin for Constant Linear Velocity Error
40 Cv +ISignal from Digital Signal Processor.
41 RFSM oOutput Pin for RF Signal.
42 RFS- 1Connection Pin for Gain Setting of RF and
Constant Setting of 3T Compensation of the
EFM Sional with RFSM Pin.
43 SLC oSlice Level Control Signal is Output Pin, It
Control Level of Data-Slice by Digital Signal
Processor of the RF Waveform.
44 ISLI IIIInput Pin for Level Control of Data-Slice by I
I I Digital Signal Processor.
45 IDGND I-IGround for Diaital Sianal. {
46 vc- 1Input Pin For VCO Control Amplifier, Consist
of PLL LOOP Filter with VCOC and PDO of
Diaital Sianal Processor.
. .
47 1Vcoc IOIOutput Pin for VCO Control Signal.
48 Vco oOutput Pin for VCO Signal.
49 DEF oOutput Pin for Defect Detection of Disc.
50 CLK IInput Pin for Reference Clock Pulse, Input
4.23 MHz of Digital Signal Processor.
51 CL IInput Pin of Clock Pulse for Command from
I I IMicro Processor.
52 IDAT I I I Input Pin of Data for Command fram Micro
I1Processor.
53 ICE IInput Pin of Chip Enable for Command from
I I IMicro Processor.
54 IDRF IOIDetect RF Signal is Output Pin for RF Level
Detection.
55 ILF IIIConnection Pin for Adiustirm of VCO Free-run.
56 IVCC2 I-IVCC for Servo and Digital Root.
57 IREFI IIBus Control Connection Pin for Reference
IIIVoltaae.
58 VR oOutput Pin for Reference Voltage.
59 LF2 IConnection Pin for Time Constant Setting of
Defect Detection of the Disc.
60 PHI 1Capacitpr Connection Pin for Peak-hold of RF
I]Signal.
61 IBH1 1ICapacitor Connection Pin for Bottom-hold of
IIIRF Sianaf.
62 ILDD IOIOutput Pin of APC (Automatic Power Control)
Circuit.
63 LDS IInput Pin of APC (Automatic Power Control)
Circuit.
64 Vccl IVCC for RF Root
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