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Sine Wave Generator Circuit

2015-01-01 00:00  
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In this circuit, a square wave is filtered by a high-order low-pass filter so that a -3-dB frequency will eliminate most harmonics of the waveform. As a result, the filter outputs a fundamental sine wave. This method is applied to generate a sine wave by using a switched- capacitor filter (MAX292) (see the figure). This circuit offers wide frequency range (0.1 Hz to 25 kHz),
Sine Wave Generator Circuit

low distortion, and constant output amplitude throughout the whole frequency range.

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