353SB5I192T

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Introduction to Oscillators

An oscillator is a device, circuit, or system that produces a regularly repeated sequence of electrical or mechanical signals, usually periodic waves. In electronic communications, oscillators are used to convert DC (direct current) to AC (alternating current). They are also used in audio equipment and instruments, radios, alarm systems, and audio and video systems, as well as in clocks and computers. This article will focus on the application field and working principles of the 353SB5I192T oscillator.

Application Field of 353SB5I192T Oscillator

The 353SB5I192T oscillator is a high performance programmable oscillator that is widely used in high-frequency scenarios such as modems, radio communication equipment, and digital TV.

The 353SB5I192T oscillator has a much higher clock rate and frequency stability compared to other oscillators, making it ideally suited for frequency control applications. It has a wide frequency range, from 0.1Hz to 1000MHz, a low-profile construction, a fast start-up time, and programmable frequency accuracy with low noise and low phase noise.

Working Principle of 353SB5I192T Oscillator

The 353SB5I192T oscillator is a type of voltage-controlled oscillator (VCO) with a programmable frequency accuracy from 0.05 to 0.2 ppm filtered sine wave output. It uses a PLL (Phase Locked Loop)circuit structure to ensure consistent frequency accuracy performance at different frequencies and temperatures.

The oscillator consists of a voltage-controlled oscillator circuit (VCO) with an adjustable tuning voltage input, a reference oscillator (REFO) connected to a phase detector, and a divider between the VCO and REFO. The PLL circuit contains an output divider that can be programmed to divide the VCO output to adjust the output frequency.

When the tuned frequency deviates from the reference frequency, the phase detector will adjust the VCO to keep it in synchronization with the REFO. The output frequency will therefore remain consistent, even with changes in temperature, voltage, or other environmental factors.

Conclusion

The 353SB5I192T oscillator is a versatile, high-performance programmable oscillator with a wide range of applications, including modems, radio communication equipment, and digital TV applications. It has a high frequency stability with programmable frequency accuracy with low noise and low phase noise. The working principle of the oscillator is based on a voltage-controlled oscillator circuit with a programmable PLL structure.

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