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