JVC KD-LX333R Service Manual page 17

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Description of major ICs
TC9490FA (IC521) : DSP & DAC
1.Pin layout & Block daiagram
48
DV 49
SS3
50
RO
51
DV
DD3
LPF
52
DVR
LO 53
54
DV
SS3
55
ZDET
V 56
SS5
TE
L 13942296513
57
BUS0
58
BUS1
59
BUS2
60
BUS3
61
BUCK
62
/CCE
63
/RST
64
V
DD5
1
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47 46 45 44 43 42
Clock
generator
1-bit
DAC
Address
circuit
16k
RAM
Audio output
Digital output
circuit
Micro-
controller
interface
2 3 4 5 6
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8
41 40 39 38 37
PWM
Servo control
ROM
Digital equalizer
automatic
adjustment circuit
RAM
Q Q
3 6 7 1 3
CLV servo
Sync signal
protection
EFM
Sub code
detector
7 8 9 10 11 12
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2 9 9 4 2 8
36 35 34 33
32
31
D/A
30
29
A/D
28
27
26
25
1 5 0 5 8 2 9 9 4
24
Data
slicer
23
22
VCO
21
20
19
PLL
TMAX
18
17
13 14 15 16
m
co
KD-LX333R
9 9
TEZI
TEI
SBAD
FEI
RFRP
RFZI
RFCT
AV
DD3
2 8 9 9
RFI
SLCO
AV
SS3
VCOF
RV
REF
LPFO
LPFN
TMAX
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