An effective AMS top-down methodology applied to the design of a mixed-signal UWB system-on-chip
Proceedings of the conference on Design, automation and test in Europe
Design of Analog CMOS Integrated Circuits
Design of Analog CMOS Integrated Circuits
M-PPM noncoherent receivers for UWB applications
IEEE Transactions on Wireless Communications
Multilevel symmetry-constraint generation for retargeting large analog layouts
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
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This works presents an integrated 0.18@mm CMOS 2-PPM demodulator based on a switched capacitor network for an energy detection impulse-radio UWB receiver. The circuit has been designed using a top-down methodology that allows to discover the impact of low-level non-idealities on system-level performance. Through the use of a mixed-signal simulation environment, performance figures have been obtained which helped evaluate the influence at system level of the non-idealities of the most critical block. Results show that the circuit allows the replacement of the ADC typically employed in energy detection receivers and provides about infinite equivalent quantization resolution. The demodulator achieves 190pJ/bit at 1.8V.