A Reconfigurable A/D Converter for 4G Wireless
- Horta, N.H.; Guilherme, J.G.; A. Silva;
"A Reconfigurable A/D Converter for 4G Wireless
", Proc
IEEE International Symp. on Circuits and Systems - ISCAS
,
Seattle
,
United States
, Vol.
, pp.
924
-
927
,
May
,
2008
.
Abstract
This paper presents a multi-standard reconfigurable
sigma-delta modulator, which is able to support the predictable
standards of fourth generation of mobile communication
systems (4G). Furthermore, the proposed architecture halves the
number of required analog-to-digital converters in parallel
receivers, by processing concurrently two different signals. The
major design issues are outlined and operation modes are
detailed. A system-level simulation is performed to demonstrate
the feasibility of the presented solution. The modulator is
implemented into switched-capacitor circuits and device level
simulations demonstrate the performance of the converter.
