L64780 LSI Logic Corporation, L64780 Datasheet - Page 16

• Manufacturer Part Number: L64780
• Description: Dvb-t Cofdm Demodulator Technical Manual 2/00
• Manufacturer: LSI Logic Corporation

1.4 Modes of Operation
1.5 Features
1-6
The L64780 supports all the modes of the DVB-T specification, including:
The L64780 features include:
Introduction
2 K and 8 K FFT sizes
Nonhierarchical QPSK, 16 QAM, and 64 QAM constellations
Hierarchical 16 QAM and 64 QAM constellations
Constellation scale factors
Code rates of 1/2, 2/3, 3/4, 5/6, and 7/8
Guard intervals of 1/4, 1/8, 1/16, and 1/32
DVB-T compliance
Internal or external DAC
Digital real-to-complex conversion
Spectrum inversion
2 K or 8 K FFT size
Rapid time synchronization
Rapid frequency synchronization
Common phase error correction
High-order filter for frequency interpolation
Automatic mode switching
Automatic frame detection
Use of channel state information for protection against multipath and
interference
3- or 4-bit soft decision outputs
Analog or digital AFC
AGC
= 1, 2, and 4