PLL आवृत्ति संश्लेषक में, यदि 500 MHz आवृत्ति वाला क्रिस्टल ऑसिलेटर 2 से विभाजित नेटवर्क से गुजरता है, तो PLL में इनपुट आवृत्ति _______ MHz है।

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RRB JE ECE 22 Apr 2025 Shift 2 CBT 2 Official Paper
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  1. 1000
  2. 250
  3. 1500
  4. 0.004

Answer (Detailed Solution Below)

Option 2 : 250
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अवधारणा:

आवृत्ति संश्लेषक के रूप में उपयोग किए जाने वाले PLL (फेज लॉक लूप) में, एक क्रिस्टल ऑसिलेटर एक उच्च स्थिर आवृत्ति प्रदान करता है। यदि इस आवृत्ति को N से विभाजित नेटवर्क से गुजारा जाता है, तो आउटपुट आवृत्ति हो जाती है।

दिया गया है:

क्रिस्टल ऑसिलेटर आवृत्ति,
2 से विभाजित नेटवर्क: N =2

गणना:

PLL में इनपुट आवृत्ति =

अंतिम उत्तर:

2) 250 MHz

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