62
Pin No.
1
2
3
4 to 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
I/O
I
I
O
I
I
O
I
—
I
O
I
I
I
I
I
O
I
I
—
I
O
I
O
O
I
I
O
O
O
O
O
O
O
I
I
O
I
I
O
I
O
I
O
Description
RF signal input (I) that is supplied form the optical pickup detector and has already been I-V converted
RF signal input (J) that is supplied form the optical pickup detector and has already been I-V converted
Middle point voltage (+1.65 V) generation output
Signal input from optical pick-up detector (A to F)
Light amount monitor input from laser diode of optical pick-up
Laser amplifier output to automatic power control circuit
Reference voltage input for setting laser power from CXD2656R (IC121)
Ground
Temperature sensor connection pin
Reference voltage output for temperature sensor
Write data signal input from CXD2656R (IC121)
Serial clock signal input from CXD2656R (IC121)
Serial latch signal input from CXD2656R (IC121)
Standby signal input
Control signal input of center frequency for internal circuit filter (BPF22, BPF3T, EQ) from CXD2656R
(IC121)
Reference voltage output Not used in this system (Blank terminal)
Input pin for setting center frequency of internal circuit filter (EQ)
Input pin for setting center frequency of internal circuit filter (BPF3T)
Power supply (+33 V)
Input pin for setting center frequency of internal circuit filter (BPF22)
Tracking error signal output to CXD2656R (IC121)
Connection pin of capacitor for low path filter of sled error
Sled error signal output to CXD2656R (IC121)
ADIP FM signal output
Inputs ADIP FM signal by AC coupling
Connection pin of external capacitor for ADIP AGC
ADIP dual FM signal output to CXD2656R (IC121) (2205 kHz ± 1 kHz)
Auxiliary signal (I3 signal/temperature signal) output to CXD2656R (IC121)
Focus error signal output to CXD2656R (IC121)
Light amount signal (ABCD) output to CXD2656R (IC121)
Bottom hold signal output of light amount signal (RF/ABCD) to CXD2656R (IC121)
Peak hold signal output of light amount signal (RF/ABCD) to CXD2656R (IC121)
Playback EFM RF signal output to CXD2656R (IC121)
Connection pin of RF AGC circuit external capacitor
Inputs RF signal by AC coupling
Output terminal to user’s comparator. Not used. (Blank terminal)
Inverted input terminal from user’s comparator. Not used. (Fixed to “L”)
The terminal to which external capacitor to cut off low frequency range of the ADIP amplifier, is going to be
connected.
Output terminal to user’s operational amplifier. Not used. (Blank terminal)
Inverted input terminal from user’s operational amplifier. Not used. (Fixed to “L”)
Output pin of RF signal
Inputs MO RF signal by AC coupling
Output pin of MO RF signal
Pin Name
I
J
VC
A to F
PD
APC
APCREF
GND
TEMPI
TEMPR
SWDT
SCLK
XLAT
XSTBY
F0CNT
VREF
EQADJ
3TADJ
VCC
WBLADJ
TE
CSLED
SE
ADFM
ADIN
ADAGC
ADFG
AUX
FE
ABCD
BOTM
PEAK
RF
RFAGC
AGCI
COMPO
COMPP
ADDC
OPO
OPN
RFO
MORFI
MORFO
6-22. IC PIN FUNCTION DESCRIPTION
• BD BOARD IC101 CXA2523AR (RF AMPLIFIER, FOCUS/TRACKING ERROR AMPLIFIER)
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