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IC DESCRIPTION
IC, CXA2523AR
Pin No.
Pin Name
1
I
2
J
3
VC
4
A
5
B
6
C
7
D
8
E
9
F
10
PD
11
APC
12
APCREF
13
GND
14
TEMPI
15
TEMPR
16
SWDT
17
SCLK
18
XLAT
19
XSTBY
20
FOCNT
21
VREF
22
EQADJ
23
3TADJ
24
VCC
25
WBLADJ
26
TE
27
CSLED
28
SE
29
ADFM
30
ADIN
31
ADAGC
32
ADFG
33
AUX
34
FE
35
ABCD
36
BOTM
37
PEAK
38
RF
39
RFAGC
40
AGCI
41
COMPO
I/O
I
Input "I" RF signal converted to I-V.
I
Input "J" RF signal converted to I-V.
O
Output voltage for VCC/2.
I
Input current for main beam servo signal A.
I
Input current for main beam servo signal B.
I
Input currentt for main beam servo signal C.
I
Input current for main beam servo signal D.
I
Input current for side beam servo signal E.
I
Input current for side beam servo signal F.
I
Input beam spectrum monitor signal.
O
Output laser APC.
I
Input reference voltage for laser power setting.
—
GND.
I
Not used.
I
I
Input micro-processor serial interface data.
I
Input micro-processor serial interface shift clock.
I
Input micro-processor serial interface latch. "L": Latch.
I
Standby setting pin. "H": Normal mode, "L": Standby.
I
Internal current setting pin.
O
Not used.
I/O
EQ central frequency setting pin.
I/O
BPF3T central frequency setting pin.
—
Power supply pin.
I/O
BPF22 central frequency setting pin.
O
Output tracking error signal.
—
LPF capacitor connection pin for SLED error signal.
O
Output SLED error signal.
O
Output ADIP FM signal.
I
Input ADIP signal comparator.
—
ADIPAGC capacitor connection pin.
O
Output ADIP2 binary data signal.
O
I3 output temperature signal. Switched by serial command.
O
Output focus error signal.
O
Output beam spectrum signal for main beam servo detector.
O
Output bottom hold signal for RF/ABCD.
O
Output peak hold signal for RF/ABCD.
O
RF equalizer output pin.
—
RFAGC capacitor connection pin.
I
RFAGC input pin.
O
Not used.
21
Description
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