SIT9005ACU1G-18SG

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Programmable Oscillators are specialized oscillating electrical circuits which can be configured to operate over a wide range of frequencies or with specifically programmed characteristics. A type of Programmable Oscillator, the SIT9005ACU1G-18SG, is a patented, low-power oscillator with a temperature-compensated CMOS analog oscillator technology. In particular, it features 0.6mA/MHz power consumption, low jitter, high stability, ultra-low additive jitter, and low output start-up current.

Application Field

The SIT9005ACU1G-18SG can be used for a variety of applications. It is a perfect fit for the development and production of Next Generation Ethernet devices striving to achieve minimum power consumption. These devices require high system clocks stability as well as rapid start up time. Since the SIT9005ACU1G-18SG is a true low-power device and includes very low jitter and temperature-compensated CMOS outputs, it is the ideal solution for Ethernet applications without the need for an external crystal.

The SIT9005ACU1G-18SG is also the best choice for other telecommunications products and any other application where low power and high precision are equally important. Its high separation of wide amplitude and frequency tuning range allows its use in a variety of phase lock loop (PLL) designs. Moreover, the SIT9005ACU1G-18SG also features a low phase noise performance and requires only one resistor to set the frequency at the desired operating points.

Working Principle

The SIT9005ACU1G-18SG utilizes patented CMOS analog oscillator technology which allows the oscillator to be switched independent of the output buffer, meaning that the power consumption can be adjusted precisely to the oscillator’s needs depending on the application. It also enables highly precise shutdowns during start-up of the circuit, which are especially important in low-power Ethernet devices.

The SIT9005ACU1G-18SG is also equipped with an ultra-low additive jitter technology to compensate for the non-ideal performance of the on-chip oscillators. By means of this design feature, it can maintain its jitter performance at very low frequencies and a wide voltage range, which ultimately leads to lower electrical noise.

Additionally, the SIT9005ACU1G-18SG utilizes temperature-compensated CMOS output technology. This makes it easier to achieve higher oscillator accuracy and lower power. The temperature-compensated output buffer prevents undesired offsetting in frequency due to changes in ambient temperature.

Moreover, the SIT9005ACU1G-18SG utilizes an integrated frequency selection loop to make sure that the oscillator is always running at the optimal frequency and amplitude. The loop is also responsible for calibration and monitoring. This is done on each start-up so that the oscillator is quickly running at the most ideal state and that the environmental variations during operation are compensated.

The SIT9005ACU1G-18SG also features a low start-up current, which is especially beneficial in low-power applications. Compared to traditional oscillators using quartz crystals, the SIT9005ACU1G-18SG offers a significantly lower start-up current, which helps reduce the start-up times.

Overall, the SIT9005ACU1G-18SG is a great choice for a variety of applications as it offers low-power, high stability, and a wide selection of frequency ranges and amplitudes. Its patented CMOS analog oscillator technology and temperature-compensated outputs make it the ideal choice for any application, especially those striving for low-power consumption.

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