A complete audio decoder IC for US television stereo using serial arithmetic
Charles B. Dieterich, T.J. Christopher, Greg G. Tamer, Paul D. Filliman, R.E. Morris, R.F. Nutter, Raymond J. Kolczynski, D.R. McClary · 2002
The Thomson Consumer Electronics (TCE) stereo IC is a mixed digital-analog IC which performs all audio signal processing tasks associated with Broadcast Television Systems Committee (BTSC) multichannel television sound (MTS) decoding. The TCE stereo IC uses a totally digital signal processing system to do all the audio processing tasks. These are performed using a novel, space-efficient, block structured serial arithmetic system called BRECFAST. Signal inputs are digitized by double integration sigma-delta A/D converters and audio outputs are derived from four error-feedback D/A converters. The IC gives superior audio separation and enhanced tone controls, but its key features are its lack of alignments and low cost. This work describes two aspects of the IC: the digital signal processing included in the design and the serial arithmetic system used to implement it.>