Digital to Analog and Analog to Digital Converters
When a computer is connected to a peripheral device, an interface is required to facilitate communication between them. Many peripherals rely on analog signals, while computers process data digitally, so there is a need to convert signals between these two forms.
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DAC (Digital to Analog Converter):
- Converts digital signals from the computer into analog signals that the peripheral device can understand.
- Example: Converting digital audio signals into analog sound for speakers.
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ADC (Analog to Digital Converter):
- Converts analog signals from the peripheral into digital signals that the computer can process.
- Example: Converting an analog microphone input into digital audio data for the computer.
Key Roles:
- DAC: Digital → Analog (e.g., for speakers, monitors)
- ADC: Analog → Digital (e.g., for microphones, sensors)
These converters ensure smooth communication between the CPU and devices that operate with different signal formats.