GDC21D003 Datasheet, PDF (62/77 Pages) Hynix Semiconductor – VSB Receiver

GDC21D003
Received
Symbols
NTSC Rejection Filter
¢²
D
(D = 12 Symbols Delay)
15 Level Symbols
+ Noise + Interference
Partial
Response
Viterbi
Decoder
Data
Out
8 Level Symbols
+ Noise + Interference
Optimal
Viterbi
Decoder
Figure 6.6.4 Viterbi Decoding with and without NTSC Rejection Filter
Shift
Register1
Shift
Register2
From
Segment Sync
Suspension
Branch
Metric
Ncomb
ACS
Path Memory
Sync
MUX
Sync
To
Symbol-to-byte
Converter
Figure 6.6.5 Internal Block Diagram of Viterbi Decoder
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