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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: Delta Sigma .vs R2R Ladder posted by jaydacus on October 21, 2017 at 09:53:08:
Hi,
Technically speaking the problems of Multibit and Delta Sigma are opposite.
Multibit is weakest at low levels, low sample rates and around zero-crossing (though circuit tricks exist that can reduce this a lot) and Delta Sigma is weakest at high levels and high sample rates.
So in many ways multibit and Delta Sigma are each others antithesis.
An intelligent combination of Multibit for the upper bits (with measures taken to control the zero crossing glitch) and Delta Sigma for the lowest bits seems like an ideal synthesis that allows the weaknesses of each system to be avoided and the strength of each system to be retained.
The Patents that limit the use of this tech are running out.
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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- RE: Delta Sigma .vs R2R Ladder - Thorsten 10/24/1706:21:25 10/24/17 (0)
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