ΣΔ ADC Design Considerations for an UMTS Receiver

This paper gives an insight on how to derive the minimum required specifications both for the anti-aliasing filter (AAF) and the analog-to-digital converter (ADC) in the case of an UMTS receiver. Based on the receiver specifications, we come up with a design plan for both discrete time ΣΔ ADC as well as for a continuous time ΣΔ ADC.