Fast and accurate behavioural simulation of fractional-N frequency synthesizer for the optimization of the lock time

Salwa Sahnoun (1) , Ahmed Fakhfakh (1) , Nouri Masmoudi (1) , Hervé Levi (2)

1 LETI - Laboratoire d'électronique et des technologies de l'Information [Sfax]
2 IMS - Laboratoire de l'intégration, du matériau au système

Today, the current need consisting of implementing more and more complex systems imply the implementation of new methodologies to make the CAD product reliable in order to improve time to market, study costs, reusability and reliability of the design process. This paper proposes a high level design approach applied for the simulation and the optimization of fractional-N synthesizer acting as a direct GPSK modulator and designed for the UMTS standard application. It uses the hardware description language VHDL-AMS and a genetic algorithm to optimize the modulator with a considerably reduced CPU time.

Domaines: Micro et nanotechnologies/Microélectronique

Salwa Sahnoun, Ahmed Fakhfakh, Nouri Masmoudi, Hervé Levi. Fast and accurate behavioural simulation of fractional-N frequency synthesizer for the optimization of the lock time. International Conference on Microelectronics (ICM 2011), Dec 2011, Hammamet, Tunisia. pp.1-6, ⟨10.1109/ICM.2011.6177380⟩. ⟨hal-00816976⟩