Term · Analog, RF & Mixed-Signal
Oversampling
Sampling a signal at a rate well above the Nyquist rate so that quantisation noise spreads over a much wider band, leaving less of it inside the signal band. Doubling the rate buys about half a bit of resolution before noise shaping.
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- Domain
- Analog, RF & Mixed-Signal, Data converters
Notes
Also relaxes the anti-alias filter, letting a cheap first-order RC replace a steep analog filter.
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