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– 22 –
Pin No.
Pin name
I/O
Description
1
VC
O
Output terminal for the center point voltage (+1.4V) generated.
2 – 7
A– F
I
Signal input from detector circuit in the optical pick-up block.
8
FI
I
Signal (–) input of the operational amplifier for F signal.
9
FO
O
Signal output of the operational amplifier for F signal.
10
PD
I
Front monitor.
Connected to the photo diode.
11
APCREF
I
Input terminal for the setting of laser power.
12
TEMPI
I
Terminal for the connection to temperature sensor.
13
GND
–
Ground terminal.
14
AAPC
O
LD amplifier output terminal of APC circuit.
15
DAPC
O
Not used. (Open)
16
TEMPR
O
Output terminal of thr reference voltage for temperature sensor.
17
XRST
I
Reset signal input from the system controller (IC201).
When reset : “L”
18
SWDT
I
Write data signal input from the system controller (IC201).
19
SCLK
I
Clock signal input from the system controller (IC201).
20
XLAT
I
Latch signal input from the system controller (IC201).
21
VREF
O
Reference voltage output.
Not used this set (Open)
22
TENV
O
Not used. (Open)
23
THLD
I
Not used. (Connected to the VC)
24
VCC
–
Power supply terminal. (+5V)
25
TFIL
I
Not used. (Open)
26
TE
O
Tracking error signal output to CXD2535BR (IC121).
27
TLB
I
Input terminal of the adder signal to tracking error.
28
CSLED
I
Terminal for the sled error lowpass filter.
29
SE
O
Sled error signal output to CXD2535BR (IC121).
30
ADFM
O
FM signal output terminal of the ADIP.
31
ADIN
I
Input terminal by AC coupling is FM signal of the ADIP.
32
ADAGC
I
External capacitor connect terminal for AGC of the ADIP.
33
ADFG
O
ADIP double turned FM signal output to CXD2535BR (IC121). (22.05kHz±1kHz)
34
AUX
O
Sub signal output to CXD2535BR (IC121).
35
FE
O
Focus error signal output to CXD2535BR (IC121).
36
FLB
I
Not used. (Open)
37
ABCD
O
Light amount signal output to CXD2535BR (IC121).
38
BOTM
O
Light amount bottom hold signal output to CXD2535BR (IC121).
39
PEAK
O
Light amount peak hold signal output to CXD2535BR (IC121).
40
PFAGC
I
External capacitor connect terminal of AGC circuit for the RF.
41
RF
O
Playback EFM RF signal output to CXD2535BR (IC121).
42
ISET
I
Setting terminal for the internal circuit constant.
22kHz, BPF center frequency
43
AGCT
I
Input terminal by AC coupling is RF signal.
44
RFO
O
RF signal output terminal.
45
MORFI
I
Input terminal by AC coupling is RF signal of the MO.
46
MORFO
O
RF signal output terminal of the MO.
47,48
I,J
I
Signal input from detector circuit in the optical pick-up block.
SECTION 7
EXPLANATION OF IC TERMINALS
IC101 RF AMP (CXA1981AR)
Summary of Contents for HCD-MJ1
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