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In Reply to: Is Class D amplification digital? posted by stehno on November 9, 2014 at 17:07:03:
Hi,
> I just read somebody claiming Class D is not digital.
They do that to pretend it is something it is not.
> Although there may be the odd Class D amp that is all analog,
That it is not Class D.
> it seems to me that traditional or common class D amps
> are indeed commonly known as digital with at least one
> conversion of the signal from analog to do digital and
> back again
Yup.
Strictly speaking any Analogue input Class D Amplifier is a Delta Sigma A2D converter followed by a power stage and a low-pass filter. With a feedback loop around the A2D.
Anyone who says different is trying to talk away the Class D Stigma.
Thor
At 20 bits, you are on the verge of dynamic range covering fly-farts-at-20-feet to intolerable pain. Really, what more could we need?
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Follow Ups
- RE: Is Class D amplification digital? - Thorsten 21:22:21 11/09/14 (2)
- RE: Is Class D amplification digital? - hahax@verizon.net 20:56:39 11/10/14 (0)
- RE: Is Class D amplification digital? - stehno 22:31:13 11/09/14 (0)
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