8735BMI-21LFT

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Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers describes the application and working principle of the 8735BMI-21LFT. A clock generator, also called a clock oscillator, is a device that generates a clock signal used to synchronize or control the timing of digital devices, typically in digital circuits like microprocessors, FPGAs, digital logic and other devices. PLLs (phase-locked loops) are widely used for clock generation in a variety of applications, especially wherever large volumes of data must be transferred between multiple electronic devices. Frequency synthesizers are electronic circuits that produce and control the frequency of radio-frequency signals. The 8735BMI-21LFT is a clock generator, PLL, and frequency synthesizer all rolled into one.The 8735BMI-21LFT has a wide range of applications. It is typically used in communications systems, embedded systems, and automotive electronics. Communications applications include base station transceivers, cellular phones, satellite transceivers, and wireless LANs, while embedded applications include industrial Automation and Control, Video Surveillance, and Healthcare. Automotive applications include vehicle media centers, navigation systems, and Instrumentation and Control.The chip\'s working principle is based on a three-stage architecture consisting of phase frequency detector (PFD), charge pump, and voltage-controlled oscillator (VCO). The PFD compares the phase and frequency of two input signals, a reference signal and the signal from the VCO. It then outputs an error signal that is proportional to the phase and frequency difference between the two input signals. The error signal is then passed to the charge pump, which outputs a current that is applied to the VCO. The VCO then changes the frequency and phase of the signal output until it matches the reference signal, ensuring a phase and frequency lock.The operating frequency range of the 8735BMI-21LFT is from 1MHz to 3GHz. It has an output frequency range of 8 KHz to 1MHz, with a typical phase noise of -124 dBc/Hz at 1GHz. It has a typical power consumption of 1.45W and is packaged in a highly integrated 31mm x 31mm quad flat pack (QFP) form factor.The chip has several features designed to make it easy to integrate into applications. It has a built-in temperature compensator and programmable output frequency spread. It also has a low noise core voltage regulator, a loop filter, and a frequency trimming block. In addition, the chip includes built-in, on-board startup capabilities that make it easy to get up and running in a variety of applications.The 8735BMI-21LFT is an ideal solution for a variety of applications such as communications systems, embedded systems, and automotive electronics. Its advanced features make it easy to integrate into a variety of systems, while its wide operating frequency range make it well suited for use in a variety of applications. Its low noise, highly integrated form factor makes it an ideal choice for modern clock generation, PLL, and frequency synthesis applications.

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