Pin No. Mark I/O Function
19 SMCK O 1/2-diveded clock
signal of crystal
osscillating at MSEL =
“H” (fSMCK = 8.4672
MHz) 1/4-divided
clock signal of crystal
oscillating at MSEL =
“L” (fSMCK = 4.2336
MHz)
20 CSEL I Frequency Selection
Terminal H = 33.8688
MHz ; L = 16.9344 MHz
21 TRV O N.C
22 TVD O Traverse drive output
23 PC O Spindle motor ON
output ("L" : ON)
24 ECM O Spindle motor drive
signal output(forced
mode output)
25 ECS O Spindle motor drive
signal output
(servo error signal
output)
26 KICK O N.C.
27 TRD O Tracking drive output
28 FOD O Focus drive output
29 VREF I D/A (drive) output
(TVD, ECS, TRD, FOD,
FBAL, TBAL)
Reference voltage
input
30 FBAL O Focus balance
adjustment output
31 TBAL O Tracking balance
adjustment output
32 FE I Focus error signal
input (analog input)
33 TE I Tracking error signal
input (analog input)
34 RFENV I RF envelope signal
input
35 VDET I Vibration detection
signal input ("H" :
detection)
36 OFT I Off-track signal input
("H" : off track)
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