Presentation
A novel low-voltage reconfigurable ΣΔ modulator for 4G wireless receivers
Author/s | Morgado García de la Polavieja, Alonso
Río Fernández, Rocío del ![]() ![]() ![]() ![]() ![]() ![]() ![]() Rosa Utrera, José Manuel de la ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Department | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo |
Publication Date | 2008 |
Deposit Date | 2018-07-13 |
Published in |
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Abstract | This paper presents a new adaptable cascade
ΣΔ
modulator architecture fo
r low-voltage multi-stan-
dard applications. It uses two reconfiguration strategies:
a programmable global resonation and a variable
loop-filter ... This paper presents a new adaptable cascade ΣΔ modulator architecture fo r low-voltage multi-stan- dard applications. It uses two reconfiguration strategies: a programmable global resonation and a variable loop-filter order. These techniques are properly com- bined in a novel topology that allows to increase the effec- tive resolution in a given bandwidth, whereas keeping relaxed output swing requirements and high robustness to mismatch and to non-linearities of the amplifiers. Time-domain simulations incl uding the main circuit-level non-idealities are shown to demonstrate the benefits of the presented modulator when it is configured to cope with the requirements of GSM, UMTS, WLAN and Wi-Max. |
Funding agencies | Ministerio de Educación y Ciencia (MEC). España Junta de Andalucía |
Citation | Morgado García de la Polavieja, A., Río Fernández, R.d. y Rosa Utrera, J.M.d.l. (2008). A novel low-voltage reconfigurable ΣΔ modulator for 4G wireless receivers. En Conference on Design of Circuits and Integrated Systems, Grenoble (Francia) del 12 al 14 de noviembre de 2008. |
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