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Q104
CXA1082BQ (Servo Signal Processor)
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TRACKING PHASE
COMPENSATION
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26
Pin No. | Symbol
Function
Pin No.| Symbol
Function
Insert the capacitor between this terminal and
28
PDI | Input terminal of phase comparator output PDO
2 | FGD | pin3 when drop the high frequency gain of
Zs
eas
focus servo
21
DIRCT
—
22. | XRST
i
ps3. | Switching terminal of high frequency gain of
23 | DATA | Input terminals for microcomputer and
focus servo
24
XTL
interface
25 | CLK
4
FLB
Time constant switching terminal when raise
RE
LOCK
|
the low frequency gain of focus servo
~
—-
}
——
a9 | ager | Flow the current to decide the focus search, track
5
| FEO
|
:
jump, and kick height
i
TAO | Operation amplifier output terminals for power
14
| SLO | transistor drive
if 30
vcop | YEO free run frequency is proportion to resistor
39
SPDLO
|
value between pins 30 and 31
6
| FE- | Inversion input terminal of focus amplifier
32
864 | VCO (8.64MHz) output terminal
c o e
beaches
Time constant terminal to make the focus
|
\
Connection terminal to terminal MDP of
7 | SRCH
ccarch waveform
| 34 | MPP | cxp11300
Time constant terminal for high frequency gain
|
Connection terminal to terminal MON of
8
TGU | switching of tracking
a
MON | ¢xD11300
Time constant terminal for high frequency gain
LPF
time constant terminal of CLV servo error
9
TG2 | switching of tracking
a6
FSW | signal
12 | TA- | Inversion input terminal of tracking amplifier
38 | sppL_|
Inversion input terminal of spindle drive
amplifier
13
SL+ | Non-inversion input terminal of sled amplifier
~
:
-
-
40
| WDCK
15>].
"Sie
aversion input term inal of sled ampniss
42 | Mie | Input terminals for microcomputer and interface
16
SSTOP
| Limit switch ON/OFF
detector signal terminal
44
DFCT
i
for disc innermost position detector
45
TE | Tracking error signal input terminal
17
| BSET. | Tetminal of peak of phase compensation of focus
a
|
tracking and of setting of LPF
46 | TZC | Tracking zero cross comparator input terminal
18 | SENS | Output terminals for microcomputer and
47 | arse | Window comparator input terminal for ATSC
20 | C.OUT | interface
detection
27
BW | Time constant terminal of loop filter
48
FE | Focus error signal input terminal
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