Multimedia demodulator simplifies DTV, STB designs

What is DTV?
DTV (digital TV) is a telecommunication system for broadcasting and receiving moving pictures and sound by means of digital signals, in contrast to analog signals used by traditional TV. DTV uses digital modulation data, which is digitally compressed and requires decoding by a specially designed TV set, or a standard receiver with an STB, or a PC fitted with a television card. The major DTV standards are ATSC (North America), DVB (Europe) and ISDB (Japan). All three use MPEG-2 video compression and Dolby Digital audio compression.

What does DVB-T stand for?
"Digital Video Broadcasting-Terrestrial is the DVB European consortium standard for the broadcast transmission of digital terrestrial TV. The system transmits a compressed digital A/V stream, using OFDM modulation with concatenated channel coding. The adopted source coding methods are MPEG-2 and, more recently, H.264. "

What is a demodulator?
A demodulator is an electronic circuit used to recover the original information-bearing signal from a modulated carrier wave and the process is called demodulation.