MT312
Contents
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System Block Diagram - SNIM5 ............................................................................................. 1
System Block Diagram - SNIM5 ............................................................................................. 2
MT312 Functional Block Diagram ........................................................................................... 3
Viterbi block diagram ............................................................................................................11
Viterbi error count measurement ...........................................................................................12
Viterbi error count coarse indication ......................................................................................12
DVB Conceptual diagram o f the conoluntional de-interleaver block .......................................13
DSS Conceptual diagram of the convolutional de-interleaver block ........................................13
DVB block structure ..............................................................................................................14
DSS block structure ..............................................................................................................14
DVB Energy dispersal conceptual diagram ............................................................................15
MT312 Control Structure .......................................................................................................16
Alternative System Block Diagram - SNIM6 ...........................................................................17
Initialisation sequence in DVB mode .....................................................................................20
Simple channel change sequence .........................................................................................24
Channel change sequence with new Symbol rate, DVB mode ................................................24
Channel change sequence with search mode, DVB mode .....................................................25
Results of Symbol rate and code ...........................................................................................25
A DiSEqC™ data byte interrupting a continuous 22kHz tone .................................................29
One DiSEqC™ data byte - 0x11 (hex) plus parity bit .............................................................29
DVB Transport Packet Header bytes ......................................................................................55
MT312 output data wave form diagram ..................................................................................56
MT312 output data wave form diagram 2 ...............................................................................57
MT312 output data wave form diagram 2 ...............................................................................58
One DiSEqC™ data byte - 0x11 (hex) plus parity bit .............................................................77
Crystal oscillator circuit .........................................................................................................79
Application Schematic ...........................................................................................................83
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