550AC171M000DGR

An oscillator is an electronic circuit that generates an alternating current at a given frequency. The frequency of this current can be controlled by external components or by an adjustable internal circuit. Oscillators are widely used in electronics for various applications such as radio transmission, sound generation, as well as for other scientific, industrial, and technological applications. One of the most well-known oscillators is the 550AC171M000DGR oscillator, which is primarily used for the generation of the sinusoidal waveform.

Application Field

The 550AC171M000DGR oscillator is primarily used in circuits that require a sinusoidal waveform with a low phase noise. This oscillator is particularly suitable for radio reception, signal amplification, and sound reproduction systems, but can also be used in other applications that require a low phase noise sinusoidal waveform. This oscillator is capable of providing a sinusoidal waveform with a frequency range of between 50kHz and 500MHz, while also providing low phase noise down to -95dBc/Hz.

Working Principle

The 550AC171M000DGR oscillator works on a principle known as direct-digital-synthesis, or DDS. This technique makes use of a digitally controlled oscillator (DCO) and a phase-locked loop (PLL) circuit to generate a stable, sinusoidal waveform. The DCO circuit produces a periodic waveform which is then fed into the PLL circuit. The PLL circuit will then adjust the frequency of the waveform to match the desired output frequency. Once the PLL circuit adjusts the frequency, it locks onto that output frequency and automatically maintains it, ensuring a stable sinusoidal waveform.

The 550AC171M000DGR oscillator is also capable of providing low phase noise down to -95dBc/Hz, thanks to its frequency control loop that contains a wide-band phase frequency detector, a high-bandwidth voltage-controlled oscillator, and a frequency divider that has a low spurious level. This combination of components provides a low phase noise output that is suitable for various types of radio reception, signal amplification, and sound reproduction systems.

Finally, the 550AC171M000DGR oscillator is also capable of providing a wide temperature range and low power consumption. This oscillator can operate in temperatures ranging from -40 to +85 degrees Celsius, while maintaining its low phase noise performance. Additionally, this oscillator draws a negligible amount of current, typically between 10 to 15 milliamps, making it ideal for applications that require energy-efficient power consumption.