Digital to Analog conversion using Zilog
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| Zilog.jpg |
An alternative method for a channel DAC is used which is the generation of Pulse Width Modulator (PWM) is then integrated by a low pass filter.
By providing a channel DAC with a resistor and capacitor in which the additional advantage DAC resolution can be configured by software.
Knowing in advance that the basic principle of the Digital Analog Converter is the generation of PWM. There are several ways to generate a PWM. The simplest form is produced directly from PWMtimer dedicated PWM
on the MCU. Unfortunately, not all the MCU has PWM timer built in as an alternative solution. we can use 2 timers (one for frequency and one for the duty cycle for this task) to achieve a high frequency PWM, but a
High frequency PWM is not always necessary that allows users to save one of the two timers.
* This application note describes a low frequency PWM generation with only one general purpose timer. MCU will uninitialized shortly after starting the definition table and initializes the MCU software.
For more details, digital to analog conversion using Zilog can be downloaded at the link:
Digital to analog conversion using Zilog download
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