Pseudorandomly controlled ADC Characterization towards Multistandard Receiver

Manel Ben Romdhane (1) , Chiheb Rebai (1) , Adel Ghazel (1) , Patricia Desgreys (2, 3) , Patrick Loumeau (2, 3)

1 CIRTA'COM
2 C2S - Circuits et Systèmes de Communication
3 COMELEC - Département Communications & Electronique

The radio communication tendency is to reach Software Radio applied to multistandard receiver. Non uniform sampling controlling Analog-to-Digital Converter in Homodyne multistandard receiver was previously proposed in our works. Non uniform sampling offers the advantage of alias-free sampling. This can lead to many advantages in the multistandard based non uniform sampling receiver such as, essentially, relaxing anti-aliasing filter and reducing power consumption of the analog-to-digital converter. In this paper, we present a pseudo-random signal sampler to control the analog-to-digital converter. This circuit consumes less than the difference between the non uniform sampling and the uniform over-sampling. A complete test setup with instrumentation and spectral analysis will be presented to illustrate alias-free processing measurement.

Keywords: Radio communication; Signal sampling; Signal reconstruction; Analog-digital conversion; Clocks

Domains: Micro and nanotechnologies/Microelectronics

Manel Ben Romdhane, Chiheb Rebai, Adel Ghazel, Patricia Desgreys, Patrick Loumeau. Pseudorandomly controlled ADC Characterization towards Multistandard Receiver. Transactions on Systems, Signals and Devices, 2011, 5 (4), pp.1-6. ⟨hal-02286756⟩