What frequency synthesizer circuit uses a...

Question 1 / 20dNowgo8LRTedMnkpUWHQ

Question 1 of 20dNowgo8LRTedMnkpUWHQ

What frequency synthesizer circuit uses a phase comparator, look-up table, digital-to-analog converter, and a low-pass antialias filter?

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Question 1 of 20

dNowgo8LRTedMnkpUWHQ

What frequency synthesizer circuit uses a phase comparator, look-up table, digital-to-analog converter, and a low-pass antialias filter?

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🔍 Key Concepts

• Block-diagram differences between direct digital synthesizer (DDS) and phase-locked-loop (PLL) synthesizer • Typical use of a look-up table and digital-to-analog converter (DAC) in waveform generation • Role of a low-pass antialias filter in converting digital signals to analog

💭 Think About

• Which of these synthesizers starts from a purely digital waveform representation and then converts it to analog? • Which type of synthesizer typically relies on a voltage-controlled oscillator and feedback loop, and does that usually require a look-up table? • If a circuit includes a look-up table feeding a DAC, what form is the signal in before the DAC, and what is the purpose of the low-pass filter after the DAC?

✅ Before You Answer

• Identify which option normally includes a phase comparator AND a look-up table feeding a DAC in its standard block diagram. • Confirm which design uses the low-pass filter specifically as an output reconstruction/antialias filter after digital-to-analog conversion. • Eliminate any choices whose usual implementation does not rely on a stored waveform table for frequency synthesis.

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Question 1 of 20

What frequency synthesizer circuit uses a phase comparator, look-up table, digital-to-analog converter, and a low-pass antialias filter?

A direct digital synthesizer.

Phase-locked-loop synthesizer.

A diode-switching matrix synthesizer.

A hybrid synthesizer.

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Question 1 / 20dNowgo8LRTedMnkpUWHQ

Question 1 of 20dNowgo8LRTedMnkpUWHQ

What frequency synthesizer circuit uses a phase comparator, look-up table, digital-to-analog converter, and a low-pass antialias filter?

Back

Question 1 of 20

dNowgo8LRTedMnkpUWHQ

What frequency synthesizer circuit uses a phase comparator, look-up table, digital-to-analog converter, and a low-pass antialias filter?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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