Skyworth 8M29B, Service Manual, Page: 25 / 45

IC Block Diagram
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TC9 0 517FG Toshiba products specification [Tentative]
CONFIDENTIAL
2. Configuration
All functions required for ISDB-T demodulation and error correction are built into the TC9 0 517 .
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 TC9 0 517FG Block Diagram
Synchroni-
zation flag
TS output
Crystal
(reference clock )
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
Viterbi
decoding
Memory
Frequency
deinterleaving
RS
decoding
Error
detection
Output
control
Layer
isolation
TMCC
demodulation
Interpolation
phase
correction
Synchroni
zation
Demapping
CSI
processing
Bit
deinterleaving
‡‡
B
y
te deinterleavin
g
TS
multiplex
FFT window
control
AGC distortion signal
ADC
ADC
IF input
or IQ input
SW
External AGC input
Host I
2
C
Energy
despreading
Energy
despreading
Energy
despreading
Demapping
CSI
processing
Demapping
CSI
processing
Modulation division
Quadrature
detection
AFC
Frequency
CPE
Pilot
extraction
Time
deinterleaving