QUADRATURE_WAVE_OSCILLATOR

Published:2009/6/23 1:49:00 Author:Jessie | From:SeekIC

By using a high-frequency quad current-feedback amplifier (the HA5025) as an RC oscillator, four quadrature sine waves can be generated. The HA5025's four separate amplifiers generate the sine waves, and the quad NAND gate, U2, is biased at its threshold, so it acts as a sine-wave to square-wave converter when the she waves are ac coupled into its input.



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