CXA1782CQ/CR
Pin Description
Pin
I/O
O
Symbol
No.
Equivalent circuit
Description
25p
147
Focus error amplifier output.
Connected internally to the FZC
comparator input.
1
1
FEO
174k
51k
9k
300µ
10k
2
3
FEI
I
I
Focus error input.
147
147
2
100k
3
Capacitor connection pin for defect
time constant.
FDFCT
68k
Ground this pin through a capacitor
when decreasing the focus servo
high-frequency gain.
147
4
4
5
FGD
I
I
130k
20µ
External time constant setting pin
for increasing the focus servo low-
frequency.
40k
FLB
5
FE_O
TA_O
SL_O
6
O
O
O
Focus drive output.
Tracking drive output.
Sled drive output.
6
13
16
13
16
250µ
90k
147
7
7
FE_M
I
Focus amplifier inverted input.
50k
– 3 –
SONY [ SONY CORPORATION ]
