Sharp CD-MPS440W Service Manual page 56

CD-MPS440W
IC801 VHiLC7890/-1: MP3 Decoder Digital Signal Processor (LC78690)
80
EFMIN
1
SLICE LEVEL
RFOUT
2
CONTROL
LPF
3
PHLPF
4
AIN
5
CIN
6
BIN
7
PROCESSOR
DIN
8
FEC
9
RFMON
10
MONITOR
VREF
11
JITTC
12
EIN
13
TES, HFL,
DEFECT
FIN
14
TEC
15
TE
16
TEIN
17
LDD
18
LDS 19
AVSS
20
21
79 78 77 76 75 74 73
CLOCK
LPF
GENERATOR
1bit DAC
8FS DIGITAL FILTER
DEEMPHASIS
RF
ATTENUATION CONTROL
SIGNAL
INTERPOLATION MUTE
VREF
Synchronization
Detection
EFM
Demodulation
SERVO
JITTER
CONTROL
A/D
D/A
APC
CD PLL
22 23 24 25 26 27 28
Figure 1 BLOCK DIAGRAM OF IC
72 71 70 68 66
69 67
DOUT
Audio FLT MUTE
MP3 & WMA
DECODER
Memory I/F
ROM
TEXT
DECODER
ERROR
CORRECTION
SUBCODE DECODE
29 30 31 32 33 34 35
8 – 3
65 62 61
64 63
PLL2
LRSY
60
DATACK
59
AUDIO
I/F
DATA
58
TEST1
57
STDATA
56
Stream
STCK
55
I/F
STREQ
54
TEST0
53
CONT0
52
Memory
CONT1
51
1M
CONT2
50
INTB1
49
INTB0
48
CPU I/F
&
RESB
47
PORT
DO
46
CONTROL
DI
45
CL
44
CE
43
DVSS
42
DVDD
41
PLL3
36 37 38 39 40