Title :
A high dynamic range fully-active 45–240MHz tunable RF bandpass filter for TV tuners
Author :
Jolivet, S. ; Amiot, S. ; Crand, O. ; Bertrand, S. ; Jarry, B. ; Lintignat, J.
Author_Institution :
NXP Semicond., Caen, France
Abstract :
A fully-active tunable RF bandpass filter is presented. It uses a novel positive feedback RC “Rauch” structure, based on a wideband amplifier for high dynamic range purposes. The filter, designed in a BiCMOS 0.25μm technology, exhibits a 10dBm IIP3 requirement and a 15dB noise figure. The quality factor of 3 obtained from 45 to 240MHz guarantees the required full integration of the selectivity for TV silicon tuners over more than two octaves of the VHF band.
Keywords :
BiCMOS integrated circuits; RC circuits; band-pass filters; circuit feedback; circuit tuning; television; wideband amplifiers; BiCMOS technology; TV silicon tuners; VHF band; frequency 45 MHz to 240 MHz; high dynamic range fully-active tunable RF bandpass filter; noise figure 15 dB; positive feedback RC Rauch structure; quality factor; size 0.25 mum; wideband amplifier; Band pass filters; Linearity; Noise; Radio frequency; Resonant frequency; Tuners;
Conference_Titel :
ESSCIRC (ESSCIRC), 2011 Proceedings of the
Conference_Location :
Helsinki
Print_ISBN :
978-1-4577-0703-2
Electronic_ISBN :
1930-8833
DOI :
10.1109/ESSCIRC.2011.6044970
