A monolithic video frequency filter using NIC-based gyrators
- 1 February 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 23 (1) , 175-182
- https://doi.org/10.1109/4.275
Abstract
A filter system for analog video signal processing is discussed. This system is composed of a variable time-constant active RC filter part with balanced-type negative impedance converters (NICs) and an automatic tuning circuit part using a PLL. The system is implemented by a conventional junction-isolated 15- mu m bipolar process with n-p-n transistors of f/sub T/=400 MHz; features low production cost; and it uses an automatic tuning scheme with better accuracy in response than previous systems. A filter system with a passband from 3.7 to 5.2 MHz, and which operates from a single 5-V supply, was implemented by the bipolar process. Experimental results obtained for the filter system are given.<>Keywords
This publication has 3 references indexed in Scilit:
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