Resistor capacitor sinusoidal oscillator circuit - has a frequency determining capacitor connected to frame by one electrode

摘要

The oscillator has a differential amplifier (1) whose first input (I) is connected to the frame through a first frequency determining resistor (3). Also, it connects to frame through a first frequency determining capacitor (2), and through a feed-back resistor (4) to the amplifier output (A). The second, inverting input (II) is connected to frame through a frequency determining resistor (6) in series with capacitor (7) and through a second feed-back resistor (8) to the amplifier (1) output (A). The two resistors (4, 8) ensure stable oscillation conditions.