138
CHAPTER 7 8-BIT PWM TIMER
Figure 7.1-1 Configuration Example of the D/A Converter with the PWM Output and a Low-Pass Filter
Note:
While PWM timer functions are enabled, no interrupt request occurs.
Va/Vcc = TH/T
Va
C
R
Va
T
TL
TH
Tr
Vcc
Vcc
PWM output Analog output (Va)
PWM pin
Analog output waveform
Relationship between analog output
voltage and PWM output waveform
Tr represents the amount required to
stabilize output.
PWM output waveform
t