Title :
A 0.8 μm CMOS switched-capacitor video filter
Author :
Petraglia, Antonio ; Canive, Jorge Morales ; Petraglia, Mariane Rernbold
Author_Institution :
COPPE, Univ. Fed. do Rio de Janeiro, Brazil
Abstract :
The very low sensitivity properties of switched-capacitor filtering structures implemented as a parallel connection of two allpass sections has already been demonstrated theoretically and verified by computer simulation. This paper describes the design of a fifth-order low pass elliptic filter using this technique, to satisfy specifications commonly used in video frequency applications. Operating with a sampling frequency of 16 MHz, the IC prototype was implemented in a standard double-poly CMOS 0.8 μm process. The experimental results obtained with the fabricated IC showed a passband frequency deviation smaller than 0.08 dB up to the passband edge frequency of 3.4 MHz, and an output noise power of 0.97 μVRMS/√(Hz), resulting in a dynamic range of 49.1 dB.
Keywords :
CMOS analogue integrated circuits; all-pass filters; elliptic filters; integrated circuit design; integrated circuit measurement; integrated circuit testing; low-pass filters; switched capacitor filters; 0.8 micron; 16 MHz; 3.4 MHz; CMOS switched capacitor video filter; IC prototype; all-pass filters; analogue integrated circuits; computer simulation; fifth order low pass elliptic filter; integrated circuit measurement; integrated circuit testing; passband edge frequency; passband frequency deviation; sampling frequency; sensitivity; standard double-poly CMOS process; switched capacitor filtering structures; video frequency applications; Application software; CMOS integrated circuits; Computer simulation; Filtering; Frequency; Integrated circuit noise; Low pass filters; Passband; Prototypes; Sampling methods;
Conference_Titel :
Integrated Circuits and Systems Design, 2004. SBCCI 2004. 17th Symposium on
Print_ISBN :
1-58113-947-0
DOI :
10.1109/SBCCI.2004.240974
