Si53xx-RM

APPENDIX C—TYPICAL PHASE NOISE PLOTS

Introduction

The following are some typical phase noise plots. The clock input source is a Rohde and Schwarz model SML03 RF Generator. Except as noted, the phase noise analysis equipment is the Agilent E5052B. Also (except as noted), the Any-Frequency part was an Si5326 operating at 3.3 V with an ac-coupled differential PECL output and an ac- coupled differential sine wave input from the RF generator at 0 dBm. Note that, as with any PLL, the output jitter that is below the loop bandwidth of the Any-Frequency device is caused by the jitter of the input clock, not the Any- Frequency Precision Clock. Except as noted, the loop bandwidths were 60 Hz to 100 Hz.

Figure 65. 155.52 MHz In; 622.08 MHz Out

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Silicon Laboratories SI5326, SI5369, SI5365, SI5366, SI5367, SI5374, SI5375, SI5327, SI5319 Appendix C-TYPICAL Phase Noise Plots