— 79 —
Pin No.
Pin Name
I/O
Function
Middle point voltage (2.5V) generation output
Input of signal from optical block detector
F operation amplifier input
F operation amplifier output
Front monitor. Connected to photo diode
Input pin for setting laser power
Temperature sensor connection input
Ground
APC LD amplifier output
Not used
Temperature sensor reference voltage output
Input of reset signal from Q403
Reset: “L”
Input of write data signal from system controller (IC301)
Input of clock signal from system controller (IC301)
Input of latch signal from system controller (IC301)
Reference voltage output (Not used)
Not used
Not used (Connected to VC)
Power supply (+5V)
Not used
Output of tracking error signal to CXD2535CR (IC121)
Input of add signal to tracking error
Sled error LPF input
Output of sled error signal to CXD2535CR (IC121)
ADIP FM signal output
Inputs ADIP FM signal by AC coupling
Connection of external capacitor for ADIP AGC
Output of ADIP dual FM signal to CXD2535CR (IC121) (22.05 kHz±1 kHz)
Output of auxiliary signal to CXD2535CR (IC121)
Output of focus error signal to CXD2535CR (IC121)
Not used
Output of light amount signal to CXD2535CR (IC121)
Output of bottom hold signal of light amount signal to CXD2535CR (IC121)
Output of peak hold signal of light amount signal to CXD2535CR (IC121)
Connection of RF AGC circuit external capacitor
Output of playback EFM RF signal to CXD2535CR (IC121)
Internal circuit constant setting input
22 kHz BPF center frequency
Inputs RF signal by AC coupling
Output of RF signal
Inputs MO RF signal by AC coupling
Output of MO RF signal
Input of signal from optical block detector
O
I
I
O
I
I
I
–
O
O
O
I
I
I
I
O
O
I
–
I
O
I
I
O
O
I
I
O
O
O
I
O
O
O
I
O
I
I
O
I
O
I
VC
A to F
FI
FO
PD
APCREF
TEMPI
GND
AAPC
DAPC
TEMPR
XRST
SWDT
SCLK
XLAT
VREF
TENV
THLD
VCC
TFIL
TE
TLB
CSLED
SE
ADFM
ADIN
ADAGC
ADFG
AUX
FE
FLB
ABCD
BOTM
PEAK
RFAGC
RF
ISET
AGCT
RFO
MORFI
MORFO
I, J
1
2 to 7
8
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
• IC101 RF Amplifier (CXA1981AR)
5-13. IC PIN FUNCTIONS
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