Design of SC Delta-Sigma Modulators for Multistandard RF Receivers
275
Sensitivityis defined as the lowest possible signal power that an RF receiver can
detect in the presence of electronic noise, given a specified signal-to-noise ratio
(SNR). An alternative representation of sensitivity is called the minimum detectable
signal(MDS) [12][13].
Selectivity represents the RF receiver’s capability of distinguishing a desired
small signal in the presence of strong adjacent interferers and blockers. In most
cases, the channel band-pass filter (centered at the IF) dictates the receiver’s selectiv-
ity [12]. It is also dependent on the quality factors ...
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