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Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

RE: jitter sensitivity

Upsampling without noise shaping will not increase jitter sensitivity, because sensitivity depends on the rate of change of the audio signal. However, upsampling with noise shaping may increase jitter sensitivity, because high frequency noise added by the shaping process increases the rate of change of the audio signal.

Delta sigma DACs use noise-shaping, making them potentially more sensitive to jitter than other types of DAC, such as NOS ladder DACs and OS ladder DACs. The amount of increased jitter sensitivity will depend on details of the noise shaping process, e.g. it will be larger if a lot of noise shaping is used (as with a 1 bit DAC) and less if only a little noise shaping is used (as with an 8 bit DAC).




Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar


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  • RE: jitter sensitivity - Tony Lauck 06/23/1422:08:47 06/23/14 (2)

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