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
O
"Reference voltage (VRO) output pin
* VRO=1/2VCC When VCC=3.3V"
O
Focus error signal generation amp output pin
I
Focus error signal generation amp negative-phase input pin
O
"Signal amp output pin for track count
Combining RFRP signal and TEO signal with TC94A14F/FA configures tracking
search system."
I
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 1k
Ω
resistor
ON
Control signal output
ON
Control signal output
VCC
GVSW
Mode
GND
Hiz
CD-RW
Normal
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