SIT3809AI-D-25NG

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Programmable Oscillators are usually used for tasks such as providing timing marks for frequency measurement, providing stable reference signals for different communication platforms, and even for telecommunication networks. A programmable oscillator can be used to generate frequencies from an application specific frequency range; or to set a frequency shift from a tuned reference frequency. These oscillators are available in a variety of models, including those with manually programmable frequency, those with memory, those with digital and analog circuitry, those with temperature compensation, and those with voltage and current level settings.

One example of a programmable oscillator is the SIT3809AI-D-25NG. This oscillator is a linear CMOS device manufactured by Skyworks Solutions Inc. and is mainly used in low power applications such as timer circuits, and other frequency control circuits. It features an internal clock circuit, as well as an enable/disable latch, which allows for frequency switching and/or speed control.

The primary application for the SIT3809AI-D-25NG is to provide low power, large signal support for microcontrollers and other integrated circuits. This device has a maximum frequency range of 1 MHz to 25 MHz and offers 16 selectable frequency settings. It also has a wide frequency range of 1 MHz to 250 MHz and offers 32 selectable frequency settings, with a minimum step size of 0.1 MHz. With a 1.4 mA maximum current draw, the SIT3809AI-D-25NG is a low-power device, suitable for many applications. It also features an integrated voltage regulator, enabling low-voltage operation.

The SIT3809AI-D-25NG is composed of two major sections: a logic section and an oscillator section. The logic section contains the controller logic, a digital logic comparator, and a low-power logic circuit to reduce the power consumption. The oscillator section contains the oscillator circuit, which consists of a precision oscillator, a dual frequency-setting system, and a selector for the frequency-setting system. The integrated voltage regulator enables the device to operate at low voltage levels.

To adjust the frequency output of the SIT3809AI-D-25NG, either an analog voltage or a digital code is applied to the frequency setting input. The code, generated by the microcontroller or other logic circuit, is used to select the desired frequency. If a frequency change is required, the code is changed accordingly, and the microcontroller sends the new code to the oscillator. The frequency output of the device is then changed accordingly.

The SIT3809AI-D-25NG is an ideal programmable oscillator for applications that require low power consumption and precise frequency control. It provides a wide frequency range, low power consumption, and integrates an adjustable voltage regulator, making it suitable for many applications. This device can be used for tasks such as providing timing marks for frequency measurement and providing stable reference signals for different communication platforms.

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