VHDL-AMS Modeling of Continuous-Time Complex Bandpass Delta Sigma Modulator
نویسندگان
چکیده
Abstrac tContinuous-Time delta sigma modulators (CT ∆ΣM), by their nature, are mixed-signal systems. That fact creates a discontinuity in the traditional IC design flow which assumes that “discrete” and “continuous” time domain designs require separate design tools. In this work, we present a top level behavioral approach of modeling CT complex Bandpass (CBP) ∆ΣM using VHDL-AMS language. The CT ∆Σ model can be used within the analog IC design environment. Fifth-order CT CBP ∆ΣM which is tailor made for Bluetooth and WiFi Low-IF receiver demonstrates clearly the modeling technique.
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