didac
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manresa,spain
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Hi, Folded mixers are useful if your concern is voltage headroom since you don't have all the elements stacked one over the other. But beeing a different circuit topology brings to other design trade-offs like:between Vdd and the transconductor is a current source, a resistor(both lower the headroom),an inductor(if it's not a bondwire the finite Q could be losses),a LC tank tunned at fo?. Also the switching pair is a PMOS so it should be taken into account it's suitability in function of your operating frequency and technology. Hope it helps,
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