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IC DESCRIPTION - 1/2 (IC, LC78646E) - 1/2
1 SLCO O Slice level control output.
2 SLCIST I SLCO output current adjustment resistor connection pin.
3 EFMIN I RF signal input pin.
4 RF O RF monitor pin.
5 RFVDD – RF power supply pin.
6 RFVSS – RF ground pin. (Connected to 0V)
7 FIN1 I A+C signal input pin.
8 FIN2 I B+D signal input pin.
9 TIN1 I E signal input pin.
10 TIN2 I F signal input pin.
11 VREF O VREF voltage output pin.
12 REF1 I Reference voltage setting pin.
13 FE O FE signal monitor pin.
14 TEC O TE signal low pass filter capacitor connection pin.
15 TE O TE signal monitor pin.
16 RFMON O RF internal signal monitor pin. (Not used)
17 JITTC – Jitter detection capacitor connection pin.
18 ADAVDD – Servo A/D, D/A supply pin.
19 ADAVSS – Servo A/D, D/A ground pin. (Connected to 0V)
20 TDO O Tracking control output pin. D/A output.
21 FDO O Focus control output pin. D/A output.
22 SPDO O Spindle control output pin. D/A output.
23 SLDO O Sled control output pin. D/A output.
24 GPDAC O Servo D/A general purpose output pin. (Not used)
25 CONT4 I/O General purpose input/output pin 4. (Used as a CD driver mute pin) (Not used)
26 CONT5 I/O General purpose input/output pin 5. (Not used)
27 SBCK/CONT6 I/O
Sub-code read clock input pin / General purpose input/output pin 6.
(Used as a CD pickup inside limit switch pin)
28 SBCK/FG I
Sub-code read clock input pin / FG signal input pin/external emphasis setting pin.
Set to command pin function. (Connected to 0V)
29 DEFECT O Defect pin. (Not used)
30 V/P O
Rough servo/phase control automatic switching monitor output pin.
"H" for rough servo and "L" for phase servo. (Not used)
Synchronization signal detection output pin.
31 FSEQ O Outputs a high level when the synchronization signal detected from the EFM signal and the
internally generated synchronization signal agree. (Not used)
32 ~ 36 MONI1 ~ MONI5 O Internal signal monitor pin 1 ~ 5. (Not used)
37 VSS – Digital ground pin. (Connected to 0V)
38 VDD – Digital power supply pin.
39 DOUT O Digital OUT output pin.(Not used)
40 TEST I Test input pin. (Connected to 0V)
Pin No. Pin Name I/O Description
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