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Pin
No.
Mark I/O
Division
Function
47 D I Main beam D signal input
terminal
48 C I Main beam C signal input
terminal
15.2. IC101 (M66621BSG) : ATRAC ENCORDER/DECORDER, SERVO
SIGNAL PROCESSOR
Pin
No.
Mark I/O
Division
Function
1 TS0 I Test input terminal (Not
used, connected to GND)
2 APCD O Laser power setting PWM
output terminal
3 RFSWPG O Pit / group setting signal
output terminal
4 RFSWHL O High / low reflection
setting signal output
terminal
5 CLV2 O High speed select signal
output terminal
6 REFM O EFM signal output terminal
7 SPDM O Spindle (-) drive signal
output terminal
8 SPDP O Spindle (+) drive signal
output terminal
9 FODM O Focus (-) drive signal
output terminal
10 FODP O Focus (+) drive signal
output terminal
11 TRDM O Tracking (-) drive signal
output terminal
12 TRDP O Tracking (+) drive signal
output terminal
13 DVDD0 — Power supply input
terminal ( For digital circuit)
14 LDON O LD lighting control signal
output terminal
15 TVDM/
STPO0
O Traverse (-) drive signal /
stepper drive signal 0
output terminal