FN1690007

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Oscillators are electrical circuits, most commonly used in radios, radios, radar systems, and telecommunication systems, that create an alternating current signal. Such signals are generated from a constant voltage and vary only in amplitude, frequency, and phase. FN1690007, which falls within the class of Oscillators, is one such oscillator.

FN1690007 oscillators are designed to output a constant voltage signal and are commonly used in frequency multiplying circuits, digital filter applications, data acquisition systems, and Pulse Width Modulation (PWM). The voltage output generated by this oscillator is typically regulated by a temperature-compensated voltage-controlled oscillator (VCXO), which ensures that the output frequency does not vary with temperature changes. Furthermore, this oscillator features a low supply current, low jitter, and tight tolerance on the output frequency.

FN1690007 is a “clock oscillator”, meaning it produces a clock signal, or a continuous series of short, identical cycle pulses. This type of oscillator is used to create a periodic oscillating signal in a circuit, often to provide a time reference for digital circuit components.

So what is the working principle of such an oscillator? Fundamentally, the oscillator works by charging and discharging a capacitor, which creates an AC voltage signal that is then amplified and made output-able by an output stage. This process can be better understood by taking a closer look at the electrical components within the oscillator. There are three main components at play: the amplifier, the capacitor, and a resistor.

The role of the amplifier is to amplify the input signal and provide the driving force for charging and discharging the capacitor, while the capacitor stores energy as it is charged and then releases energy as it is discharged. The resistor limits the amount of current passing through the capacitor and thus determines the frequency of the signal.

To better illustrate this process, let’s take a look at the simplified schematic diagram of a typical FN1690007 oscillator circuit below. As can be seen, the circuit above illustrates the amplifier component (A), a capacitor (C), and a resistor (R).

Beginning at the left side of the schematic, the input signal is being fed into the non-inverting input of the amplifier (A). This input signal is amplified, and then sent to the positive terminal of the capacitor (C) through an emitter follower, resulting in charging the capacitor with a rectified version of the input signal.

At the same time, the negative terminal of the capacitor is connected to the resistor (R) which is connected to ground. This resistor will then begin to discharge the capacitor, producing a voltage that is proportionate to the rate of discharge. This alternating voltage is then inputted to the non-inverting input of the amplifier A through a diode-connected transistor, and the output (across the capacitor) is fed back to the inverting input of the amplifier.

The capacitor and resistor in the circuit form a type of RC network, and as such, their time constant (the product of the resistance and capacitance) determines the frequency of the oscillating signal. The output can be brought to a single point, revealing that the output of a FN1690007 oscillator is an oscillating signal whose frequency depends on the RC time constant of the components used in the circuit.

FN1690007 oscillators are an invaluable tool in various electronic systems. Paired with a temperature-compensated VCXO, the oscillator provides for an accurate, traceable signal, making them ideal for applications such as frequency synthesizing, pulse-width modulation, data acquisition systems, and audio and video systems.

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