SIT9005ACE2D-33DC

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Programmable Oscillators are electronic components used to generate electronic signals with a specific frequency. They come in a variety of shapes, sizes, and applications and can be divided into two main categories based on the technology used: analog and digital. The SIT9005ACE2D-33DC is a programmable oscillator of the digital class, and its application field and working principle are discussed here.SIT9005ACE2D-33DC is a programmable oscillator designed for high-precision, digitally-controlled frequency or phase applications. It has a wide operating temperature range from -40°C to +85°C and can output a frequency up to 150 MHz in 14-bit frequency resolution via an I2C interface. This device is ideal for telecommunications, radio-frequency (RF) identification, aerospace, and industrial applications that require reliable and precisely controlled timing or frequency.The SIT9005ACE2D-33DC\'s operating principle is based on a Quartz Crystal Oscillator (XO). An XO consists of a quartz crystal resonator that is powered by an external power source and generates an electrical signal with a specific frequency (or period). This signal is then used to control a digital divider, which divides this frequency by a factor of 2n, where n = 0, 1, 2, 3… up to 14, allowing the output frequency of the device to be programmed with a resolution of 14 bits (or 1/16 Hz). The programmed frequency can then be modified by a ‘tuning’ or ‘trim’ adjustment, which changes the ratio between the XO initial frequency and the final frequency output from the device. The stability (quality) of the programmable oscillator is also extremely important, as it affects the performance of the application it is used for. The SIT9005ACE2D-33DC has a phase jitter of 130fs and a frequency cycle-to-cycle jitter of 13.0μs, making it suitable for a wide range of precision applications.In addition to providing high levels of accuracy and stability, the SIT9005ACE2D-33DC also provides a range of features to further assist its applications. These features include a wide supply range of 2.7V to 3.3V, power-down modes to reduce power consumption, and temperature compensation to provide better temperature stability. The device also has an on-chip programmable, temperature-compensated RC filter that reduces the noise of the output frequency.In conclusion, the SIT9005ACE2D-33DC is a programmable oscillator of the digital class, which is suitable for a wide range of applications requiring a high degree of precision. It is able to provide an accurate and stable output frequency with a resolution of 14 bits, and has a number of features to further increase its performance and suitability for certain applications.

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