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Multi_range_Wien_bridge_sine_wave_oscillator

2016-05-18 03:24  
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Multi_range_Wien_bridge_sine_wave_oscillator
Figure 4-31 shows a Wien-bridge sine-wave oscillator with a frequency range from 20 Hz to 20 kHz, in three decade ranges, with 0.25-dB amplitude flatness. Trace A of Fig. 4-32 shows circuit output at 10 kHz. Trace B shows distortion (below 0.003%). Figure 4-33 plots distortion versus frequency. LINEAR TECHNOLOGY, APPLICATION NOTE 43, P. 29, 30.