MC92314 Datasheet, PDF (5/100 Pages) Motorola, Inc – DVB-T Single Chip Demodulator Application Note

Freescale Semiconductor, Inc.
Table of Contents
4.3.4 Tuner Control signals from the MC92314 ...................................................4-27
4.3.4.1 VCXO Control Loop..........................................................................4-28
4.3.4.2 AGC Control Loop ............................................................................4-28
4.4 MPEG-2 Output Interface of the MC92314.......................................................4-28
4.5 References .......................................................................................................4-29
Section 5
USAGE AND PERFORMANCE OF MOTOROLA’S SINGLE-CHIP DVB-T DEVICE
5.1 Remarks on the Circuit Diagram.........................................................................5-1
5.2 Initialising the Chipset.........................................................................................5-1
tion 5.2.1 Setup of the OFDM Block..............................................................................5-2
5.2.1.1 Registers of the OFDM Block .............................................................5-2
a _{5.3 Monitoring the DVB-T Single Chip......................................................................5-2}
m 5.3.1 Status Information of the OFDM Block..........................................................5-2
r _{5.3.1.1 Hardware pins ....................................................................................5-2}
fo _{5.3.1.2 Lock Status Registers.........................................................................5-2}
In ^{5.3.1.3 Usage of the AGC Feedback Register ...............................................5-3}
5.3.2 Status Information of the FEC Block .............................................................5-3
ry 5.3.2.1 Hardware Pins ....................................................................................5-3
a _{5.3.2.2 Software Registers .............................................................................5-3}
in ^{5.3.2.3 FEC Block QVAL Values corresponding to BER values ....................5-3}
5.4 Performance Considerations ..............................................................................5-4
lim 5.4.1 Possible Changes in the OFDM Block ..........................................................5-4
e _{5.4.1.1 Speeding up the Acquisition Time ......................................................5-4}
Pr^{5.4.1.2 Co-Channel Protection vs. Noise .......................................................5-6}
5.4.2 Possible Changes in the FEC Block..............................................................5-6
5.4.2.1 Fixing the Coderate for the Viterbi Decoder .......................................5-6
5.4.2.2 Adjusting the MPEG Frame Synchroniser..........................................5-6
5.5 MC92314 Performance.......................................................................................5-7
5.5.1 Performance in a typical Consumer Application............................................5-7
5.5.1.1 Typical Lock Performance ..................................................................5-7
5.5.1.2 Noise and Interference Performance..................................................5-9
5.6 References .......................................................................................................5-10
Single Chip DVB-T Demodulator - Rev. 1.3 (11/30/98)
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MOTOROLA
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