Switched-capacitor filters are clocked, sampled-data systems. The operation of switched-capacitor filters is based on the ability of on-chip capacitors and MOS switched to simulate resistors. The values of these on-chip capacitors can be closely matched to other capacitors on the IC, resulting in integrated filters whose cutoff frequncies are proportional to, and determined only by, the external clock frequency. This paper presents a method for the analysis of switched-capacitor filters un the frequency and time domains by the use of AccuSim II. It is shown how the switched-capacitor macromodels available as primitives in the Eldo kernel can be used to implement various switched-capacitor networks in AccuSim II. Examples of the simulation of the switched-capacitor networks are also given.

Bio

Elin CHUA joined Mentor Graphics Singapore as a Regional Applications Engineer in August 1998. She is responsible for supporting PCB family of products with emphasis in Library solutions in ASEAN, India and Australia. From July 1997 to August 1998 Elin was a Regional Applications Engineer with Mentor Graphics Associates Pte Ltd. Before that, she was with Bintan Inti Industrial Estate. Elin holds a Bachelor of Engineering in Electrical Engineering from Nanyang Technological University.

Teng-Mong LEE joined Mentor Graphics Singapore as an Applications Engineering Manager in August 1998. He is responsible for managing a team of applications engineers supporting PCB and Analog/Mixed-Signal family of products in ASEAN, India and Australia. From December 1994 to August 1998 Teng Mong was an Applications Engineering Manager, Senior Application Engineer and Regional Applications Engineer with Mentor Graphics Associates Pte Ltd. Teng Mong has also previously worked with the R&D Center, JVC Singapore Pte Ltd from 1991 to 1994 and Signal Processing Laboratory, Defence Science Organisation in 1990. Teng Mong holds a Master of Science degree in Consumer Electronics from Nanyang Technological University and a Bachelor of Engineering in Electrical Engineering from the University of Singapore. He also holds a Certified Diploma in Accounting and Finance from the Chartered Association of Certified Accountants.