SIT8209AI-21-28E-106.250000T

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Oscillators are devices that produce periodic electrical signals, often used for timing, switching and modulation purposes. The SIT8209AI-21-28E-106.250000T is an oscillator that is specifically tailored for modern electronic devices. It has a multiple frequency range and enjoys stable performance and high performance, making it ideal for applications such as frequency synthesisers, phase-locked loops and memory timing circuits. In addition, its internal crystal oscillator offers low phase noise and jitter.

The SIT8209AI-21-28E-106.250000T is based on the Analog Devices SIT8007AI Extremely Low Voltage Clock Oscillator. This oscillator platform uses a Application Specific Standard Product (ASSP) design and is tailored for frequency synthesisers, phase-locked loops and memory timing circuits. The device\'s output frequency is generated by an internal oscillator, which can be pre-programmed to one of 2850 supported frequencies (with a tolerance of +/-20 ppm). It also has a complementary HCMOS output, which is able to achieve very low-power operation, while maintaining stability.

The SIT8209AI-21-28E-106.250000T is designed to operate from the supply voltage range of 1.2 to 3.6 V. This device is also extremely small in size, a mere 5 mm x 3.2 mm x 0.7 mm. This makes the SIT8209AI-21-28E-106.250000T particularly well suited for the chassis and mobile electronics, as well as applications with limited board spaces.

The working principle of the SIT8209AI-21-28E-106.250000T can be broken down into its two key components: the oscillator and the phase-locked loop (PLL). The oscillator is responsible for producing a periodic electrical signal, and is itself composed of three main parts: a resonator, a buffer, and a control circuitry. The resonator is composed of two terminals, which are connected to an external device known as a crystal. This crystal vibrates at a specific and fixed frequency, which is determined by the oscillator\'s resonator. The signal is then buffered by a transistor, and then amplified or eventually inverted by the control circuitry.

The other component, the phase locked loop or PLL, is responsible for taking the output signal produced by the oscillator and using it to generate a different frequency, while keeping the phase of the input signal in sync. The output frequency is determined by a feedback loop, which is composed of two components: a comparator and a VCO. The comparator continually compares the input signal to the output signal, and adjusts the output to maintain phase lock. The VCO then uses the resulting feedback signal to generate a voltage, which is then applied to the oscillator. This voltage is proportional to the desired output frequency. The oscillator then adjusts its output frequency accordingly, and the PLL maintains the phase-locked loop.

The SIT8209AI-21-28E-106.250000T is an extremely versatile device, with applications in frequency synthesisers, phase-locked loops and memory timing circuits. Its internal oscillator offers stability and low phase noise and jitter, while its multiple frequency range provides flexibility for different applications. Its small size and low power consumption make it an ideal choice for mobile and chassis electronics, as well as other applications in which board space is limited. As such, the SIT8209AI-21-28E-106.250000T is a highly recommended device for those requiring a reliable oscillator solution.

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