Sanyo LCD-42XF8T, Руководство по обслуживанию

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IC
Block Diagrams
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VDB1
OUTA1
HBA1
HBB1
OUTB1
VDA1
OUTB1
OUTA1
VDB1
VDA1
VS
A1
IN
B1
IN
B2
AV
C
C
G
N
D
M
U
TE
L
S
TB
YL
PROT
VS
A2
VREF
OUTB2
VDB2
OUTA2
HBA2
VDA2
HBB2
OUTB2
NC
NC
VDA2
OUTA2
VDB2
R
R
E
F
DV
D
D
RLMT C
LK
G
A
IN
1
G
A
IN
2
ROSC VS
B1
TEST1 TEST2 VS
B2
IN
A1
IN
A2
NC
NC
V
D
G
ai
n
G
ai
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5V
R
eg
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/2
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IC001 R2A15120FAP
TC90517FG Toshiba products specification [Tentative]
10/111 rev. 111
CONFIDENTIAL
2. Configuration
All functions required for ISDB-T demodulation and error correction are built into the TC90517.
The input signals to be supported are a low IF (intermediate frequency) signal and direct IF signal.
Baseband IQ signals can also be input.
The output signal is an MPEG-2 transport stream (TS) in serial format. Note that a TS in parallel format
can be output by setting registers.
Fig. 2.1 TC90517FG Block Diagram
Synchroni-
zation flag
TS output
Crystal
(reference clock)
㩷
Tuner
AGC
control
I
2
C
control
Filter
AGC
ISI
C
(unguarded
preecho/postecho
suppression)
FFT
Control
Adaptive
interpolation
filter
Equalization
CSI
(reliability
detection)
CVI
(CW interference
detection)
AGC control output
Tuner I
2
C
Clock PLL
㩷
Viterbi
decoding
Memory
㩷
Frequency
deinterleaving
RS
decoding
Error
detection
Output
control
Layer
isolation
TMCC
demodulation
Interpolation
phase
correction
Synchroni
zation
Demapping
CSI
processing
B
it d
ei
nt
er
le
av
in
g
B
yt
e d
ei
nt
er
le
av
in
g
㩷
TS
m
ul
tip
le
x
㩷
FFT window
control
AGC distortion signal
ADC
ADC
IF input
or IQ input
㩷
SW
External AGC input
Host I
2
C
Energy
despreading
Energy
despreading
Energy
despreading
Demapping
CSI
processing
Demapping
CSI
processing
M
od
ul
at
io
n d
iv
is
io
n
㩷
Quadrature
detection
AFC
Frequency
CPE
㩷
Pilot
extraction
㩷
Time
deinterleaving
IC5801 TC90517FGP