MT312CSLASHCG datasheet(8/90 Pages) ZARLINK

8 / 90 page

MT312 Contents

List of ﬁgures

Figure 1

System Block Diagram - SNIM5 ............................................................................................. 1

Figure 2

System Block Diagram - SNIM5 ............................................................................................. 2

Figure 3

MT312 Functional Block Diagram ........................................................................................... 3

Figure 4

Viterbi block diagram ............................................................................................................11

Figure 5

Viterbi error count measurement ...........................................................................................12

Figure 6

Viterbi error count coarse indication ......................................................................................12

Figure 7

DVB Conceptual diagram o f the conoluntional de-interleaver block .......................................13

Figure 8

DSS Conceptual diagram of the convolutional de-interleaver block ........................................13

Figure 9

DVB block structure ..............................................................................................................14

Figure 10

DSS block structure ..............................................................................................................14

Figure 11

DVB Energy dispersal conceptual diagram ............................................................................15

Figure 12

MT312 Control Structure .......................................................................................................16

Figure 13

Alternative System Block Diagram - SNIM6 ...........................................................................17

Figure 14

Initialisation sequence in DVB mode .....................................................................................20

Figure 15

Simple channel change sequence .........................................................................................24

Figure 16

Channel change sequence with new Symbol rate, DVB mode ................................................24

Figure 17

Channel change sequence with search mode, DVB mode .....................................................25

Figure 18

Results of Symbol rate and code ...........................................................................................25

Figure 19

A DiSEqC™ data byte interrupting a continuous 22kHz tone .................................................29

Figure 20

One DiSEqC™ data byte - 0x11 (hex) plus parity bit .............................................................29

Figure 21

DVB Transport Packet Header bytes ......................................................................................55

Figure 22

MT312 output data wave form diagram ..................................................................................56

Figure 23

MT312 output data wave form diagram 2 ...............................................................................57

Figure 24

MT312 output data wave form diagram 2 ...............................................................................58

Figure 25

One DiSEqC™ data byte - 0x11 (hex) plus parity bit .............................................................77

Figure 26

Crystal oscillator circuit .........................................................................................................79

Figure 27

Application Schematic ...........................................................................................................83

MT312C/CG Datasheet(PDF) 8 Page - Zarlink Semiconductor Inc

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