PPT-Crash Course on Clock Jitter

Victor Alberto Lopez Nikolskiy Some theory first httpknowyourmemecommemespepesilvia Clock jitter Jitter is the timing variation of a signal edge from its ideal value In the frequency domain it would look like a broadening of the carrier frequency Jitter is caused by the superposition of noise sources the oscillator crystal has thermal noise and creates mechanical perturbations . 4 minutes violent crime every 26 seconds property crime every 35 seconds burglary every 15 seconds fatality every 16 minutes person injured every 14 seconds roperty damage crash every seconds law enforcementreported crash every seconds CrimeCrash Clo 52 M z will have a pe riod of 6430 pic sec onds for one c lete cycle Successi ve c cles of a no is free wa ve form will measure exactly 6430 picos ec onds The noise elements that will cause the cloc k pe riod to va ry from 6430 p S are kn own as jitt 5 15 25 35 Jitter Freqiency in MHz RMS Jitter Sensitivity in picoseconds Jitter Measurements Using Phase Locked Loops Z ZQZ Z QQZ Z 587Z Z Q DUT Direct Low Jitter Reference Oscillator Phase Detector Loop Filter Measurement Filter Output at this p Wireless Infrastructure Data Converters 12500 TI Boulevard 75243 Dallas TX USA alfiozanchiieeeorg ABSTRACT This document introduces a general formula to translate the phase noise of a clock source rated via the Single Sideband to Carrier Ratio SSC ticomaaj HighPerformance Analog Products Clock jitter analyzed in the time domain Part 3 Introduction Part 1 of this threepart article series focused on how to accurately estimate jitter from a clock source and combine it with the aperture jitter of MSPS). Extremely low jitter sampling clocks mustperformance is not degraded, because the total jitter is the root-sum-square of the internal sampling clock generation are more often specified in terms IMPACT ON CLOCK DISTRIBUTION IN LHC EXPERIMENTS. S. BARON - TWEPP 2012. AIM OF . this. talk. Understand. the contributions of all the . systems. to the . bunch. . clock. . jitter. RF system . Long distance transmission . Dian Huang. Ying Qiao. Motivation. CMOS IC technology keeps further scaling. SoC. benefits from All-Digital PLL (ADPLL) designs. Dynamic frequency scaling in CPU. Fast-locked phase-locked loop (PLL) for clock generation. 2.1.Jitter measurements Jitter (absolute) is the cycle-to-cycle variation of fundamental frequency, i.e. the average absolute difference between consecutive periods, expressed as: ()=-iiJitterabsolut Jonathan Owen. Project Purpose. Explain the following concepts:. Theory of DDS operations. Nyquist. zones. Basics of clock jitter. DAC output modes. Clock jitter effects on DDS Waveforms. Acronyms. DDS – Direct Digital Synthesis. Abstract: Total Jitter is an increasingly important quantity in the development and specification of serial data links but, while it is well defined, it is not well understood. Total Jitter is like pe 2.2.2012. Goal: monitor clock jitter during ramping BEAM1 clock. . more than 10 ramps done . . different CORDE delay ranging from 4.4ns to 10ns. . PbPb. 2011 delays were 4.4ns - 6.7ns.. also blow-up applied (a slow change of frequency roughly in the middle of the ramp) . Mohammad Sharifkhani. Reading. Textbook II, Chapter 10. Textbook I, Chapters 12 and 13 . Motivation. Time is the essence!. We do things in order, do does the processors. Procedural dependency. Resource Reusability. EE 194: Advanced VLSI Spring 2018 Tufts University Instructor: Joel Grodstein joel.grodstein@tufts.edu Clocking Clocking What we’ll learn: Conditional clocking: implementation and timing Clock-distribution networks: how to send one signal to a million destinations