求如下电子书:Bandpass Sigma-Delta A/D Converters: Fundamentals, Architectures and Circuits author:José M. de la Rosa, Belén Pérez-Verdú, Rocío del Río, Fernando Medeiro, Angel Rodríguez-Vázquezlink:http://link.springer.com/chapter/10.1007%2F978-1-4757-3724-0_11