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A new log-domain first-order multifunction filter is proposed in this paper. The proposed filter is systematically derived using the state-space synthesis procedure from a corresponding block diagram. It provides lowpass, highpass, and allpass responses simultaneously for a single input signal. The filter circuit has a very simple structure, since it uses only BJTs and a grounded capacitor. It can be electronically tuned by changing an external current. The filter has a greater bandwidth due to inherently current-mode and log-domain operation. PSPICE simulations are given to confirm the theoretical analysis
Published in:
Signal Processing and Communications Applications, 2006 IEEE 14th
Date of Conference: 17-19 April 2006
- Page(s):
- 1 - 4
- Print ISBN:
- 1-4244-0238-7
- INSPEC Accession Number:
- 9095708
- Conference Location :
- Antalya
- Digital Object Identifier :
- 10.1109/SIU.2006.1659700
- Product Type:
- Conference Publications
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