650R-12LFT

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The 650R-12LFT is a clock generator focused on providing synchronization and frequency control for various digital applications such as processors, memory, digital-to-analog converters, and more. The device is based on a silicon-germanium (SiGe) technology which allows it to function as a very low-noise, high-precision frequency synthesizer. The 650R-12LFT has several advantages over traditional clock sources such as temperature stability and low power consumption.

The core of the 650R-12LFT is its synchronized clock generator, which is capable of generating multiple frequencies up to 12GHz. The frequency control is done through the use of a programmable phase-locked loop (PLL) and a digital frequency synthesizer which are both designed to work together to deliver a clean and stable output frequency. The PLL utilizes an adjustable Voltage Controlled Oscillator (VCO) to fine-tune the frequency, providing more accurate and resolution than traditional analog sources.

An additional feature of the 650R-12LFT is its ability to generate spread-spectrum clocking which is necessary to meet EMI/RFI emission requirements. There are several ways to generate spread-spectrum clocking, but the 650R-12LFT uses a PLL combined with a delta-sigma modulator to vary the output frequency by a small amount. This frequency variation is done in a controlled way which reduces the amount of EMI/RFI radiation generated by the device.

The device is packaged in a small QFP, providing a compact and low-power solution for frequency synthesizer applications. It has a built-in temperature sensor which can be used to provide precise frequency control even in applications where the temperature varies drastically. The 650R-12LFT also has a number of other features such as a wide input range and adjustable output edge timing.

In conclusion, the 650R-12LFT is an excellent clock source for digital applications that require high frequency control and accuracy. Its spread-spectrum clocking capability and low power consumption make it an ideal choice for applications where noise immunity and low emissions are a requirement. The device also features precise frequency control and a wide input range, making it suitable for a wide variety of applications.

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