Estimating the impact of complete analog channel selection on zero-IF multi-standard radio receivers power consumption

This paper analyses the key trade-off that shapes the design of direct conversion radio receivers embedding analog signal conditioning: the trade-off between the receiver area, determined by its anti-alias Low Pass Filter (LPF) order, and its power consumption, constrained by the ADC specifications of resolution and speed. The paper´s main goal is to determine the receiver´s LPF order that enables the complete analog channel selection in the context of a multi-standard receiver implementation. Based on the multi-standard receiver generic blocker diagram analysis, a first order, system level analysis is used to determine the LPF order. The analysis is constructed from the circuit / transistor level designer perspective and is also used for estimating the impact of the complete analog channel selection on the receiver RF front-end power consumption and area. Thus, by using this analysis methodology the designer is enabled to handle efficiently the large amount of information required for designing multi-standard radio systems.