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Oscillators

Oscillators are circuits that generate a continuous or periodic output signal without an input. In its most general form, an oscillator can be regarded as an amplifier combined with a feed-back mechanism that causes the output signal to be re-injected into the amplifier.

The SIT1602BI-81-18S-66.666000T is a type of oscillator designed to generate 22kHz frequency signals. It consists of an amplifier, a frequency-determining element, a start-up circuit, a signal shaping circuit, and a feedback or feedback amplifier stage. The integrated circuit contains all the necessary components for operation, so it only requires supply voltage and ground connections for operation.

Application field

The SIT1602BI-81-18S-66.666000T is primarily used in telecommunications. It is widely used as a sound tone generator in modems, fax machines and answering machines. It can also be used as an audio frequency generator for testing telephones and other communications circuit.

Working principle

The SIT1602BI-81-18S-66.666000T works by transforming a dc voltage into an ac output signal. The amplifier, the frequency-determining element, and the start-up circuit combine to generate a sinusoidal waveform at a set frequency. The signal shaping circuit then shapes the waveform into a rectangular waveform. Finally, the feedback/feedback amplifier stage amplifies the signal and outputs it.The frequency of the waveform can be adjusted by varying the voltage on the frequency-determining pin.

Conclusion

The SIT1602BI-81-18S-66.666000T is a type of oscillator designed to generate a 22kHz output signal. It can be used in a variety of applications such as modems, fax machines and answering machines. The frequency of the waveform can be adjusted by varying the voltage on the frequency-determining pin.

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