How does the support for DVB-T2 modulation by AT2780PCI all work ?
“. The The goal of DVBT2 is to improve on a ten-year old standard and put terrestrial broadcasters in the 21st century. It is the second generation digital terrestrial transmission (DTT) standard, succeeding DVB-T, which was developed in 1995 and is used by most of the DTT implementations around the world. DVB-T2 promises at least a 30% improvement in capacity. Simulations have shown that up to 60% capacity improvement is attainable, although exact performance gains depend on the parameters that are chosen. Significant innovations of the new specification compared to DVB-T include new forward error protection, high-order modulation modes, variable modulation and coding of services and increase in the number of OFDM carriers. Principally, the increase in data throughput is achieved by employing enhanced forward error correction (FEC) schemes, such as LDPC schemes, as opposed to just BCH convolution used in DVB-T. It is essentially the same LDPC that DVB-S2 introduced to improve DVB-S. T
