Intel 8253 - Page 217

Oversampling
• As we have seen earlier, the SNR of a typical ADC is:
• If the sampling rate is increased, we get the following SNR:
where OSR stands for “oversampling ratio”.
1 2 10 12 16
Sampling
Frequency
3 14
Images
Input
Frequency
Limit
Frequency (KHz)
Signal of interrest
1.76dB6.02n +
6.02n+1.76dB+10log(OSR)