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CXA1082AS/1182S Terminal Function
Terminal Terminal
Terminal Function
No.
Symbol
2
DFCT
Defect signal input terminal. Defect measure circuit activates at "H".
3
TE
Tracking error signal input terminal.
4
TZC
Tracking zero cross comparator input terminal.
5
ATSC
Input terminal of ATSC detecting window comparator.
6
FE
Focus error signal input terminal.
8
FGD
In case of reducing higher range gain of focus servo, connect a capacitor between this terminal and terminal number (91.
9
FS3
Shifts higher range gain of focus servo by FS3 ON/OFF.
10
FlB
Terminal for external time constant to increase lower range of focus servo ..
11
FEO
Focus drive output.
12
FE{-)
Reverse input terminal for focus amplifier.
13
SRCH
Terminal for external time constant to make focus search waveform.
14
TGU
Terminal for external time constant to shift higher range gain of tracking.
15
TG2
Terminal for external time constant to shift higher range gain of tracking.
17
TAO
Tracking drive output.
18
TA{-)
Reverse input terminal for tracking amplifier.
19
SL{+)
Non-reverse input terminal of sled amplifier.
20
SlO
Sled drive output.
21
SL{-)
Reverse input terminal of sled amplifier.
22
SSTOP
Terminal for limit switch ON/OFF to detect disc inner most circle.
23
FSET
Terminal to compensate peak in focus tracking phase, and for setting
1"0
in ClV lPF.
24
SENS
Terminal to output FZC, AS, TZC, SSTOP, BUSY by command from CPU.
26
C.OUT
Terminal to output signal for track number count.
27
DIRC
Terminal is used at the time of 1 track jump. A 47 kn pull up resistor is included.
28
XRST
Reset input terminal. Resets at "l".
29
DATA
Serial data input from CPU.
30
XlT
latch input from CPU.
31
ClK
Serial data transfer clock input from CPU.
33
BW
Terminal for external time constant of loop filter.
34
PDI
Input terminal of PDO for CXD1125 phase comparator.
35
ISET
Delivers a current to set the height of focus search, track jump. and sled kick.
36
VCOF
Resistance value between this terminal and terminal (37) is nearly proportion to VCO free-run frequency.
38
C864
Output terminal of 8.64 MHz VCO.
39
lOCK
Reckless drive protection circuit activates at "l". A 47 kn pull up resistor is included.
40
MDP
Terminal to connect MDP terminal of CXD1125.
41
MaN
Terminal to connect MON terminal of CXD1125.
42
Fsw
Terminal for external lPF time constant of ClV servo error signal.
44
SPDl(-)
Reverse input terminal for spindle drive amplifier.
45
SPDlO
Spindle drive output.
46
WDCK
Clock input for auto-sequence. Normally applied 88.2 kHz.
47
FOK
FOK signal input terminal.
48
MIRR
MI RR signal input terminal.
c
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