Digital Optical Transmitter

DIGITAL OPTICAL TRANSMITTER Virtually all currently available compact disc players are fitted with a digital output, but a digital optical output is only available on top-of-the-range models. This design idea describes an optical transmitter that makes it possible to drive an active loudspeaker from a standard CD player via a fibre optic link. Editorial Note This article was not included in last month"s issue because availability of the key component in the pro- ject could not be ascertained in time. Considering the interest of many of our readers in high-quality audio technology, and having announced the article on an earlier occasion, it was decided to go ahead with publication this month, in spite of the fact that the recently introduced inra-red module in the transmitter is, to our knowledge, only available direct The cost of fibre optic links for use in in high-end audio equipment is coming down rapidly. Fibre optics can help towards solving some of the problems in- herent to...