KW-XC777
1-36
Micro-
controller
interface
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 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
BCK
LRCK
AOUT
DOUT
IPF
VDD3
VSS3
SBOK
CLCK
DATA
SFSY
SBSY
/HSO
/UHSO
PVDD3
PDO
VXDD3
XO
XI
XVSS3
TEIN
VDD3
VSS3
DMO
FMO
AVDD3
SEL
TEBC
RFGC
VREF
TRO
FOO
DVSS3
RO
DVDD3
DVR
LO
DVSS3
ZDET
VSS5
BUS0
BUS1
BUS2
BUS3
BUCK
/CCE
/RST
VDD5
TEZI
TEI
SBAD
FEI
RFRP
RFZI
RFCT
AVDD3
RFI
SLCO
AVSS3
VCOF
RVREF
LPFO
LPFN
TMAX
TC9490FA (IC621) : DSP & DAC
1.Pin layout & Block daiagram
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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