公开(公告)号：AT429072T

公开(公告)日：2009-05-15

申请号：AT05848846

申请日：2005-11-16

Applicant: MICROCHIP TECH INC

Inventor： FINK SCOTT ,  VAN NIEKERK JOHANNES ,  JULICHER JOSEPH

IPC: H03K7/06

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.