Academic Journals Database
Disseminating quality controlled scientific knowledge

A Discrete-Time Downsampling FIR Filter for Windowed Integration Samplers

ADD TO MY LIST
 
Author(s): Karthik Raviprakash | Mandar Kulkarni | Xi Chen | Sebastian Hoyos | Brian M. Sadler

Journal: International Journal of Microwave Science and Technology
ISSN 1687-5826

Volume: 2009;
Date: 2009;
Original page

ABSTRACT
A novel technique to reduce die area on a discrete-time sinc2↓2 filter for charge sampling is proposed. An SNR comparison of the conventional and the proposed topology reveals that the new technique saves 25% die area occupied by the sampling capacitors of the filter. The idea is also extended to implement higher downsampling factors, and greater percentage of area is saved as the downsampling factor is increased. The proposed filter also has the topological advantage over previously reported works of allowing the designers to use active integration to charge the capacitance, which is critical in obtaining high linearity.
Save time & money - Smart Internet Solutions      Why do you need a reservation system?