KD-LX333
1-17
Description of major ICs
Audio output
circuit
Digital output
16k
RAM
Address
circuit
1-bit
DAC
Servo control
Clock
generator
LPF
PWM
D/A
A/D
ROM
CLV servo
Sync signal
protection
EFM
Sub code
detector
Data
slicer
VCO
PLL
TMAX
Digital equalizer
automatic
adjustment circuit
RAM
Correction
circuit
48
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40
39
38
37
36
35
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33
4
5
6
7
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13
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25
26
27
28
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31
32
61
60
59
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51
50
49
DOUT
IPF
V
DD3
V
SS3
SBOK
CLCK
D
ATA
SFSY
SBSY
/HSO
/UHSO
PV
DD3
PDO
VXDD3
XO
XI
XV
SS3
TEIN
V
DD3
V
SS3
DMO
FMO
AV
DD3
SEL
TEBC
RFGC
V
REF
TR
O
FOO
DV
SS3
RO
DV
DD3
DVR
LO
DV
SS3
ZDET
V
SS5
BUS0
BUS1
BUS2
BUS3
BUCK
TEZI
TEI
SBAD
FEI
RFRP
RFZI
RFCT
AV
DD3
RFI
SLCO
AV
SS3
VCOF
RV
REF
LPFO
LPFN
TMAX
TC9490FA (IC521) : DSP & DAC
1.Pin layout & Block daiagram
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TEL 13942296513 QQ 376315150 892498299