chips for digital audio part 2 - digital audio in the T.V. set

chips for digital audio (part 2) elektor february 1983 Last month"s article concerning digital audio dealt with signal sources such as the compact disc. With the advent of digital pre-amp and control-amp IC"s, the next stage can aptly be renamed the "digital audio processor". From this statement it is clear that "Hi-Fi" systems of the future will look more like micro- computers and rather than discuss gain and feedback we will talk about time, software and so on. digital audio in the T.V. set Astonishingly, digital audio ICs were orig- inally developed for television. ITT was the first company to manufacture these, intro- ducing their digital T.V. chassis concept called "Digit 2000". The AF section including the power amplifier is digitised. In fact the complete audio processing stage including the stereo decoder (for stereo T.V. sound) consists of two chips! The digital to ana- logue converter is the MAA 2300 and the signal processor the MAA 2400. The main thought in mind which p...