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https://designers-guide.org/forum/YaBB.pl Design >> Analog Design >> add random noise into ADC input https://designers-guide.org/forum/YaBB.pl?num=1121235640 Message started by fangjh on Jul 12th, 2005, 11:20pm |
Title: add random noise into ADC input Post by fangjh on Jul 12th, 2005, 11:20pm When ADC oversample and decimation, the DC and slow-moving cann't benefit,to slove the problem adding a bandlimit noise, this noise can be using linear serial feedback registers to do, but I have no paper about this(linear serial feedback ....), can you help me, or give me some advice? thanks |
Title: Re: add random noise into ADC input Post by fangjh on Jul 13th, 2005, 7:06pm please help me! |
Title: Re: add random noise into ADC input Post by fangjh on Jul 14th, 2005, 8:36pm some question: 1) The dither noise is ramdom, and the fs/2k<f<fs/2, at last the noise can be filter by low pass filter, why limit the noise ampplitude between -0.5LSB and +0.5LSB! |
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