... scheme based on the basic and enhanced (two-way) cable digital TV set-top box (DVB-C), integration of the Beijing novel ... S-Video, YCbCr9, Support program appointment function.10, Support the digital audio output (SPDIF)11, Support RS232 and smart card interface12 ... , QAM demodulation, but according to transmission environment adopts 16, 32\64\128\256 QAM modulation of the different ways.13 ...