Microcontroller having a digital to frequency converter and/or a pulse frequency modulator
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United States of America Patent
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Dec 16, 2008
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app pub date -
Dec 1, 2004
filing date -
Dec 1, 2004
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Abstract
A microcontroller having digital to frequency converter and pulse frequency modulator capabilities. The digital to frequency converter (DFC) generates a 50 percent duty cycle square wave signal that may be varied in frequency, wherein the 50 percent duty cycle square wave signal is directly proportional and linear with a count value put into an increment register. The pulse to frequency modulator (PFM) generates pulses having pulse widths of the input clock for each rollover of a counter. The frequency of these pulses is directly proportional and linear with the count value put into the increment register.
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