KD-S7350/KD-S690
(No.49778)1-31
• Pin function
Pin No. Symbol I/O Function
1 VCC - 3.3V power supply pin
2 FNI I Main-beam amp input pin
3 FPI I Main-beam amp input pin
4 TPI I Sub-beam amp input pin
5 TNI I Sub-beam amp input pin
6 MDI I Monitor photo diode amp input pin
7 LDO O Laser diode amp output pin
8 SEL I "APC circuit ON/OFF control signal, laser diode (LDO) control signal input or bottom/
peak detection frequency change pin."
9 TEB I "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"
10 TEN I Tracking error signal generation amp negative-phase input pin
11 TEO O "Tracking error signal generation amp output pin.
Combining TEO signal RFRP signal with TC94A14F/FA configures tracking search
system"
12 RFDC O RF signal peak detection output pin
13 GVSW I AGC/FE/TE amp gain change pin
14 VRO O "Reference voltage (VRO) output pin
* VRO=1/2VCC When VCC=3.3V"
15 FEO O Focus error signal generation amp output pin
16 FEN I Focus error signal generation amp negative-phase input pin
17 RFRP O "Signal amp output pin for track count
Combining RFRP signal and TEO signal with TC94A14F/FA configures tracking
search system."
18 REIS I
19 RFGO O RF signal amplitude adjustment amp output pin
20 RFGC I "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"
21 AGCIN I RF signal amplitude adjustment amp input pin
22 RFO O RF signal generation amp output pin
23 RFI I RF signal generation amp input pin
24 GND - GND pin
SEL
GND
Hiz
VCC
APC
circuit
LDO
OFF Connected VCC through 1kΩ resistor
ON Control signal output
ON Control signal output
VCC
GVSW
Mode
GND
Hiz
CD-RW
Normal
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
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
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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