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1p) Cexielt)
IC BLOCK DIAGRAM AND DESCRIPTIONS
Q102
CXA1081S (RF Amp)
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Pin No. | Symbol
Function
Pin No.
| Symbol
Function
|
Input terminal of output signal of RE summing
-
a
\
ET
eee Ace tae cougling epacttar
16 | CC1_ | Defect bottom hold output terminal
2
RFO | Output terminal of RF summing amplifier
17
Vex
| Negative power supply terminal
j
ie
Input terminal of RF summing amplifier
1g
| FE BIAS!
Nominversion bias terminal of focus error amplifier
sah
feedback
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CMR
adjustment of focus error amplifier
a
:
a |
S |
Sue
eee
Switchii
| of P-SUB/N-SUB
of
|
4
PINS
gs
!
of ED:
19
FE | Output termina of focus error amplifier
5
LD
Output terminal of APC LD amplifier
20
TE
Output terminal of tracking error amplifier
6
PD
Input terminal of APC PD (Pin diode) amplifier
21
DEFECT}
Output terminal of defect comparator
Inversion input terminal of RF
I-V amplifier (1)
ig
é
7.)
api'. | dovetsion input terminal Sf RE
22 | MIRR | Output terminal of mirror comparator
|
pp2__|
Inversion input terminal of RF I-V amplifier (2) | 93
cp | Connection terminal of capacitor for mirror
Connect to B+D of PIN diodes,
3
hold Non-inversion input of mirror comparator
;
Connection terminal of capacitor for defect
9
vc
Connect to GND.
24
cB
bottom hold
Inversion input terminal of F -V amplifier
f
40.
F | Connect to F of PIN diode.
28: | PGND.
(Connect -to.GND.
M1
|,
Javetsion
input terminal of E:L-V amplifier
26 | ASY | Auto asymmetry control input terminal
12
EO
Output terminal of E I-V amplifier
27
EFM
Output terminal of EFM comparator
Feedback input terminal of E I-V amplifier
P
13
EL...
|Qoees couteen ore ey aaohine:
28 | FOK | Output terminal of FOK comparator
14
VR | DC voltage output terminal of (Vee + Vve)/2
29 | LD ON | ON/OFF switching terminal of laser diode
Input terminal from defect bottom hold output
oe
ee
be
15
CC2 | signal via the coupling capacitor
30
Vec | Positive power supply
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