SIT9005ACU1G-28DP

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Programmable oscillators are one type of oscillator which can be manually adjusted and regulated to provide an oscillator waveform with a particular frequency required by the system. The SIT9005ACU1G-28DP is an example of such a programmable oscillator that is specifically designed for mixed-signal applications. This device is composed of two major parts, namely a crystal oscillator and a digital-to-analog converter (DAC), both of which are included in the same package.

The crystal oscillator included with the SIT9005ACU1G-28DP produces a stable sine wave carrier frequency that can be tuned by the onboard DAC. The DAC, in turn, allows the carrier frequency to be adjusted in small, but precise increments that cannot be achieved just by physically tuning a crystal. This enables the SIT9005ACU1G-28DP to be used to accurately generate frequencies in the range of 1 Hz to 10 MHz with a resolution of 1 KHz.

The SIT9005ACU1G-28DP is often used in communication applications such as frequency modulation (FM) radios, cellular handsets, and cellular infrastructure equipment. It is also suitable for general purposes, like clock distribution and timing synchronization, such as in automotive and industrial automation.

The working principle of the SIT9005ACU1G-28DP is based on the combination of quartz oscillator and digital-to-analog converters. The quartz oscillator is responsible for providing an accurate, high-frequency reference signal, while the DAC is responsible for adjusting the frequency incrementally. The output frequency is determined by the combination of these two elements, as well as any external factors such as temperature and supply voltage.

The crystal oscillator used in the SIT9005ACU1G-28DP is a quartz crystal with a built-in frequency tuning capacitor. This capacitor is used to regulate the frequency of the oscillator by altering the capacitance of the oscillator. The quartz oscillator is connected to a DAC which is responsible for adjusting the frequency in small increments. The DAC is controlled by a dedicated serial peripheral interface (SPI) to allow for complete control over the oscillator’s frequency.

The SIT9005ACU1G-28DP is a highly reliable, programmable oscillator which is ideal for use in numerous applications. With its simple programming and wide range of frequency adjustment, the SIT9005ACU1G-28DP can be used for a variety of purposes such as FM radio and cellular communication as well as industrial and automotive applications. Thanks to its reliable operation, designers can count on the SIT9005ACU1G-28DP to deliver accurate and stable frequencies throughout its entire operating range.

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