Question: 1. Why do we need ADC and DAC devices? 2. Explain the conversion process for ADC0804 with a timing diagram. 3.Design a circuit in which

1. Why do we need ADC and DAC devices?

2. Explain the conversion process for ADC0804 with a timing diagram.

3.Design a circuit in which DAC0808 is interfaced to an 8051 microcontroller. Write an assembly language program to generate a sawtooth waveform. Determine the

frequency of the saw tooth waveform from your program.

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