Phase-Locked Loop (PLL)
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PLL is the heart of practically all electronic components and or modules where different clock frequencies are required to synchronize the data transmitting and receiving to and from externals respectively. The input clock to the PLL is much lower than the DSP maximum clock frequency. PLL is typically being used as a frequency synthesizer to generate the clock for the DSP core. For example, the input clock to the 1.2GHz DSP  is 66MHz.
KeywordsFrequency Synthesizer Reference Clock Input Clock Power Supply Rejection Ratio Power Supply Noise
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