S5H1420 Datasheet, PDF (15/31 Pages) Samsung semiconductor – Channel Decoder for DVB-S/DSS

Figure3: Schematic showing Bit Transmission
S5H1420
DBS Channel Decoder for DVB-S/DSS
Idle
11 Periods
11 Periods
11 Periods
Next bit
Transmission of 1's
Transmission of 0's
B 48*5$)@$0/
b)SWITCH_CON=0
Table1
LNB_CON
SWITCH_CON
Register set
Output
00
X
Empty
Continuous tone
01
0
DATA=00
Unmodulated tone burst
1
DATA=FFor00
Module tone burst
10
x
Note 1
DiSEpC signal
11
x
xx
Reserved
Note: 1 Byte to transfer in DiSEqC mode.
2 In Mode LNB_CON (1:0) =10, the DiSEqC pin return to high 2 mode once the transmission is
completed.
Samsung Electronics Co, Ltd. Proprietary Information
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