Function Table Of Ic - Sharp CD-BA300 Service Manual

IC1 VHiLC78645E-1: CD Servo (LC78645E) (1/2)
Terminal Name Input/Output Setting in Reset
Pin No.
1 SLC0
2 SLCIST
3 EFMIN
4 RF
5 RFVDD
6 RFVSS
7 FIN1
8 FIN2
9 TIN1
10 TIN2
11 VREF
12 REFI
13* FE
14 TEC
15* TE
16* RFMON
17 JITTC
18 ADAVDD
19 ADAVSS
20 TD0 OUtput
21 FD0
22 SPD0
23 SLD0
24* GPDAC
25 CONT4 Input/Output
26 CONT5 Input/Output
27* SBCK/CONT6 Input/Output
28 SBCK/FG
29* DEFECT
30* V/*P
31* FSEQ
32* MONI1
33* MONI2
34* MONI3
35* MONI4
36* MONI5
37 VSS
38 VDD
39 DOUT
40 TEST
41 LVDD
42 LCH0
43 LVSS
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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FUNCTION TABLE OF IC

Output –
For slice level
Input –
Input –
Output – RF signal monitor terminal.
– – RF power terminal.
– – RF earth terminal. To be connected to 0V.
Input – A+C signal input terminal.
Input – B+D signal input terminal.
Input – E signal input terminal.
Input – F signal input terminal.
Output RFVDD/2 VREF voltage output terminal.
Input – Reference supply setting terminal.
Output ZHI FE signal monitor terminal.
Output – LPF capacitor connection terminal for TE signal.
Output ZHI TE signal monitor terminal.
Output ZHI RF internal signal monitor terminal.
– – Capacitor connection terminal for jitter detection.
– – Power terminal for servo A/D, D/A.
– – Earth terminal for serve A/D, D/A. To be connected to 0V.
ADAVDD/2 Output terminal for tracking control. D/A output.
Output ADAVDD/2 Output terminal for focus control. D/A output.
Output ADAVDD/2 Output terminal for spindle control. D/A output.
Output ADAVDD/2 Output terminal for sled control. D/A output.
Output ADAVDD/2 Servo D/A general-purpose output terminal.
Input Mode General-purpose I/O terminal 4.
Input Mode General-purpose I/O terminal 5.
Input Mode General-purpose I/O terminal 6 or
Subcode reading clock input terminal.
Input – Subcode reading clock input terminal/FG signal input terminal/external
emphasis setting terminal. Terminal functions are set by commands. When
not used, connect to 0V.
Output L Defect terminal.
Output H Auto switching monitor output terminal for rough servo phase control. "H":
rough servo, "L": phase servo.
Output L Sync signal detection output terminal.
The status changes to "H" when the sync signal detected in EFM and the
sync signal of internal generation are identified.
Output L Internal signal monitor terminal 1.
Output L Internal signal monitor terminal 2.
Output L Internal signal monitor terminal 3.
Output L Internal signal monitor terminal 4.
Output L Internal signal monitor terminal 5.
– – Digital system earth terminal. To be connected to 0V.
– – Digital system power terminal.
Output L Digital OUT output terminal. (EIAJ format)
Input L Input terminal for test. To be connected to 0V.
– –
Left channel
Output LVDD/2
D/A converter
– –
Function
Control output.
Resistor connection terminal for SLCO output current setting.
control.
RF signal input terminal.
Power supply for Left channel.
Left channel output.
GND for Left channel. Must be connected to 0V.
– 45 –
CD-BA300
Controlled by commands from the
microcomputer. When not used, set
them as input terminals and connect
to 0V, or set them as output
terminals and leave open.