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Pin
No.
Mark I/O
Division
Function
19 RV
DD
1 I Power supply to internal
DRAM
20 RV
SS
2 — GND to internal DRAM
21 FODP O Focus drive (+) PWM signal
output terminal
22 FODM O Focus drive (-) PWM signal
output terminal
23 SPDP O Spindle drive (+) PWM
signal output terminal
24 SPDM O Spindle drive (-) PWM
signal output terminal
25 LDON O Laser power control output
terminal (1:ON, 0:OFF)
26 PVPP
DRAM1
— Monitor to internal DRAM
output terminal (Not used,
open)
27 IV
DD
0 — Power supply terminal for I/
O pad
28 DV
DD
0 — Digital power supply
29 XI I Crystal oscillator input
terminal (F=16.9344MHz)
30 DV
SS
0 — Digital GND
31 XO O Crystal oscillator output
terminal (F=16.9344MHz)
32~34STP10~STP12
I Stepping motor status
input terminal (0~2)
35~37STP00~STP02
O Stepping motor drive
signal output terminal (0~2)
38 RFSWHL O Laser power control output
terminal (PIT/GRUVE
switching)
39 RFSWPG O Laser power control output
terminal (Reflectance
switching)
40 PEFMS I EFM signal input terminal
41
EFMPLLF
O EFM PLL filter output
terminal
42 PEFM1 O Loop filter terminal for
EFM data slicing (Not
used, open)
43 EFMFIL O Input filter switching for
EFM data slicing terminal
44 EFMIREF I Reference current setting
terminal for EFM PLL
47