SNAA399 October   2025 CDC6C , LMK5B12212 , LMK5B33216 , LMK5B33414 , LMK5C22212A , LMK5C23208A , LMK5C33216A , LMK5C33414A , LMK6C

1.   1
2.   Abstract
3.   Trademarks
4. 1Introduction
5. 2Impact of Oscillator Noise on PLL Performance
6. 3Consideration #1: XO PSNR
7. 4Consideration #2: XO Supply Filter
8. 5Consideration #3: APLL LBW
9. 6Test Results Across Different XO Supply Filters
   1. 6.1 Test Setup
   2. 6.2 Impact on the Power Supply Performance
   3. 6.3 Impact on the XO Phase Noise Performance
   4. 6.4 Impact on the PLL Phase Noise Performance
10. 7Conclusion