What is the oscillator stage called in a...

Question 1 of 27070QI3mxiDzfJxfulBK3Prz

What is the oscillator stage called in a frequency synthesizer?

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Question 1 of 27070

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What is the oscillator stage called in a frequency synthesizer?

🔍 Key Concepts

• Frequency synthesizer basic blocks (oscillator, divider, phase detector, reference) • VCO (Voltage-Controlled Oscillator) role in changing output frequency • Difference between a variable/controlled oscillator and fixed-frequency reference sources

💭 Think About

• In a phase-locked-loop (PLL) frequency synthesizer, which block actually creates the RF signal whose frequency is being adjusted? • Which block’s frequency is changed by a control voltage so the loop can lock to the reference? • Among the choices, which component is inherently an "oscillator" rather than a comparison or counting element?

✅ Before You Answer

• Identify which block generates a continuous oscillating signal rather than just comparing or dividing frequencies • Confirm which block is tuned/controlled to achieve different output frequencies • Eliminate blocks that primarily measure, compare, or divide rather than generate oscillations