Eeyore wrote:


Arfa Daily wrote:


"William Sommerwerck" wrote in message

"The letter D used to designate this amplifier class is simply the next
letter after C, and does not stand for digital. Class D and Class E
amplifiers are sometimes mistakenly described as "digital" because the
output waveform superficially resembles a pulse-train of digital symbols,
but a Class D amplifier merely converts an input waveform into a
continuously pulse-width modulated (square wave) analog signal. (A digital
waveform would be pulse-code modulated.)"

Except for the last sentence, this is a correct statement.

Only "mistakenly described" if you ignore the views of the vast majority of
IC and hardware manufacturers, and apply the narrow out of date definition
of "digital", which you do ...


Hey you can get 'digital' cables and headphones now for around $3 ! It's the
most abused term in the world apart maybe from 'an honest politician'.

Graham


Oh goody goody, how about a digital antenna!

http://webpages.charter.net/jamie_5"