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1-37
KD-LH2000
3.Pin function
Pin No.
Symbol
I/O
Function
1
2
3
4
5
6
7
8
9
10
11
12
13
21
22
23
24
-
I
I
I
I
I
O
I
I
I
O
O
I
I
O
I
-
VCC
FNI
FPI
TPI
TNI
MDI
LDO
SEL
TEB
TEN
TEO
RFDC
GVSW
AGCIN
RFO
RFI
GND
3.3V power supply pin
Main-beam amp input pin
Main-beam amp input pin
Sub-beam amp input pin
Sub-beam amp input pin
Monitor photo diode amp input pin
Laser diode amp output pin
APC circuit ON/OFF control signal, laser diode (LDO) control signal input
or bottom/peak detection frequency change pin.
Tracking error balance adjustment signal input pin
Adjusts TE signal balance by eliminating carrier component from PWM
signal (3-state output,PWM carrier = 88.2kHz) output from TC94A14F/FA
TEBC pin using RC-LPF and inputting DC.
TEBC input voltage:GND~VCC
Tracking error signal generation amp negative-phase input pin
Tracking error signal generation amp output pin.
Combining TEO signal RFRP signal with TC94A14F/FA configures tracking
search system.
RF signal peak detection output pin
AGC/FE/TE amp gain change pin
Reference voltage (VRO) output pin
VRO=1/2VCC When VCC=3.3V
Focus error signal generation amp output pin
Focus error signal generation amp negative-phase input pin
Signal amp output pin for track count
Combining RFRP signal and TEO signal with TC94A14F/FA configures
tracking search system.
RF signal amplitude adjustment amp output pin
RF amplitude adjustment control signal input pin
Adjusts RF signal amplitude by eliminating carrier component from PWM
signal (3-state output,PWM carrier=88.2kHz)output fromTC94A14F/14FA
RFGC pin using RC-LPF and inputting DC.
RFGC input voltage:GND~VCC
RF signal amplitude adjustment amp input pin
RF signal generation amp output pin
RF signal generation amp input pin
GND pin
TA2175FN-X
SEL
GND
Hiz
VCC
VCC
APC
circuit
LDO
OFF
Connected VCC through 1k resistor
ON
Control signal output
ON
Control signal output
GVSW
Mode
GND
Hiz
CD-RW
Normal
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9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299