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MC92314 Datasheet(PDF) 3 Page - Motorola, Inc

Part No. MC92314
Description  DVB-T Single Chip Demodulator Application Note
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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 3 page
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Single Chip DVB-T Demodulator - Rev. 1.3 (11/30/98)
MOTOROLA
i
Single Chip DVB-T Demodulator
Table of Contents
Section 1
SYSTEM OVERVIEW
1.1 General Description ............................................................................................1-1
1.2 Considerations on Terrestrial Transmission .......................................................1-2
1.2.1 Echoes on the Transmission Path.................................................................1-2
1.2.2 Noise .............................................................................................................1-3
1.3 Advantages of the OFDM Transmission Scheme...............................................1-3
1.4 Overview of the DVB-T System ..........................................................................1-4
1.4.1 Modulation Scheme.......................................................................................1-4
1.4.2 OFDM Block ..................................................................................................1-6
1.4.3 FFT Block ......................................................................................................1-6
1.4.4 Forward Error Correction Block.....................................................................1-6
1.4.4.1 Viterbi Decoder...................................................................................1-6
1.4.4.2 Convolutional Deinterleaver ...............................................................1-7
1.4.4.3 Reed-Solomon Decoder .....................................................................1-7
1.4.4.4 Energy Dispersal Removal (Descrambling)........................................1-7
1.5 References .........................................................................................................1-8
Section 2
PINOUT & SIGNAL DESCRIPTION OF THE MC92314
2.1 Pinout for the 160PQFP Package.......................................................................2-2
2.2 Pinout for the 169BGA Package.........................................................................2-3
2.3 Pin Description of the Single Chip DVB-T Demodulator MC92314 ....................2-4
Section 3
DEVICE DESCRIPTION
3.1 Complete DVB-T Digital Frontend ......................................................................3-1
3.2 Component Descriptions ....................................................................................3-1
3.2.1 2K-FFT Processor Block ...............................................................................3-1
3.2.2 2K-OFDM Demodulator Block.......................................................................3-2
3.2.2.1 I/Q-Demodulator .................................................................................3-3
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com




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