Skip to content

W
White Rabbit
Commit 957802ca authored by Javier Serrano's avatar Javier Serrano
Browse files
Options

Reduced set of slides for 30min talk

parent c4114543
Hide whitespace changes
Inline Side-by-side
Showing with 104 additions and 99 deletions
presentations/WR_Javier_HPTD_2018_06/wr_hptd_2018_06.tex
View file @ 957802ca
......@@ -66,7 +66,7 @@
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Title Page Info %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\title[White Rabbit\hspace{3em}\insertframenumber/\inserttotalframenumber]{White Rabbit}
\title[White Rabbit\hspace{5em}\insertframenumber]{White Rabbit}
\author{Javier Serrano}
\institute{CERN BE-CO\\Hardware and Timing section}
\date[26 June 2018]{High-Precision Timing Distribution meeting\\Geneva, 26 June 2018}
......@@ -98,37 +98,6 @@
\subsection{}
%=======================
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}{What is White Rabbit?}
\begin{columns}[c]
\column{0.8\textwidth}
\begin{itemize}
\item Renovation of accelerator's control and timing
\item Based on well-known technologies
\item Open Hardware and Open Software with commercial support
\item International collaboration
\item Many users: CERN, GSI, KM3NET, cosmic ray detectors, metrology labs...
\end{itemize}
\column{0.3\textwidth}
\begin{center}
\includegraphics[width=1.0\textwidth]{logo/WRlogo.pdf}
\end{center}
\end{columns}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}{Why we use Open Hardware ?}
\begin{center}
\includegraphics[width=.7\textwidth]{ohwr/commercial_and_open.pdf}
\end{center}
\begin{itemize}
\item Get a design just the way we want it
\item Peer review and design re-use
\item Healthier relationship with companies
\end{itemize}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}{White Rabbit: an \emph{extension} of Ethernet}
\begin{columns}[c]
......@@ -358,73 +327,6 @@
\end{frame}
\frame{\frametitle{An aside: PLL block diagram}
\includegraphics[width=\textwidth]{misc/pll_model.pdf}
}
\frame{\frametitle{An aside: PLL transfer functions}
\begin{block}{Total output phase spectrum}
$ \Phi_o(s) = H(s) \cdot \Phi_i(s) + E(s) \cdot \Phi_n(s) $
\end{block}
\begin{block}{System transfer function (low pass)}
$ H(s) = \frac{K_{VCO} K_d F(s)}{s + K_{VCO} K_d F(s)} $
\end{block}
\begin{block}{Error transfer function (high pass)}
$ E(s) = 1 - H(s) = \frac{s}{s + K_{VCO} K_d F(s)} $
\end{block}
}
\frame{\frametitle{An aside: jitter optimisation}
\includegraphics[height=0.7\textwidth]{misc/pll_psd.pdf}
}
\begin{frame}{Test setup for 10MHz switch output}
\begin{center}
\includegraphics[width=\textwidth]{measurements/WRSlowJitter/rsz_experimental_setup.png}
\end{center}
\end{frame}
\begin{frame}{WR switch clocking scheme}{Thanks to Mattia Rizzi for the work and
the figures in this section}
\begin{center}
\includegraphics[width=.85\textwidth]{switch/wrs_v3_3_clocking.png}
\end{center}
\end{frame}
\begin{frame}{MMCM noise}
\begin{center}
\includegraphics[height=.7\textheight]{switch/mmcm_noise.png}
\end{center}
\end{frame}
\begin{frame}{WR Switch: low jitter daughterboard}
\begin{columns}
\column{.35\textwidth}
\includegraphics[width=.8\textheight, angle=90]{measurements/WRSlowJitter/rsz_3d_image__1_.jpg}
\column{.65\textwidth}
\begin{itemize}
\item Current release of WRS in GM mode has sub-optimal performance on both jitter (9ps RMS 1Hz-100kHz) and ADEV (1.4E-11 $\tau$=1s ENBW 50Hz)
\item A daughterboard was designed, produced and tested to improve the performance
\item Modified WRS improves performance on both jitter ($<$2ps RMS 10Hz-100kHz) and ADEV ($<$5E-13 $\tau$=1s ENBW 50Hz) in GM mode
\end{itemize}
\end{columns}
\end{frame}
\begin{frame}{Test Results in GM mode: PM noise}
\begin{center}
\includegraphics[height=.85\textheight]{measurements/WRSlowJitter/pn.png}
\end{center}
\end{frame}
\begin{frame}{Test Results in GM mode: Modified ADEV}
\begin{center}
\includegraphics[height=.85\textheight]{measurements/WRSlowJitter/mdev.png}
\end{center}
\end{frame}
\section{Current developments}
\subsection{}
......@@ -503,4 +405,107 @@ PC.
\end{center}
\end{frame}
\appendix
\section*{Reserve Slides}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}{What is White Rabbit?}
\begin{columns}[c]
\column{0.8\textwidth}
\begin{itemize}
\item Renovation of accelerator's control and timing
\item Based on well-known technologies
\item Open Hardware and Open Software with commercial support
\item International collaboration
\item Many users: CERN, GSI, KM3NET, cosmic ray detectors, metrology labs...
\end{itemize}
\column{0.3\textwidth}
\begin{center}
\includegraphics[width=1.0\textwidth]{logo/WRlogo.pdf}
\end{center}
\end{columns}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}{Why we use Open Hardware ?}
\begin{center}
\includegraphics[width=.7\textwidth]{ohwr/commercial_and_open.pdf}
\end{center}
\begin{itemize}
\item Get a design just the way we want it
\item Peer review and design re-use
\item Healthier relationship with companies
\end{itemize}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\frame{\frametitle{An aside: PLL block diagram}
\includegraphics[width=\textwidth]{misc/pll_model.pdf}
}
\frame{\frametitle{An aside: PLL transfer functions}
\begin{block}{Total output phase spectrum}
$ \Phi_o(s) = H(s) \cdot \Phi_i(s) + E(s) \cdot \Phi_n(s) $
\end{block}
\begin{block}{System transfer function (low pass)}
$ H(s) = \frac{K_{VCO} K_d F(s)}{s + K_{VCO} K_d F(s)} $
\end{block}
\begin{block}{Error transfer function (high pass)}
$ E(s) = 1 - H(s) = \frac{s}{s + K_{VCO} K_d F(s)} $
\end{block}
}
\frame{\frametitle{An aside: jitter optimisation}
\includegraphics[height=0.7\textwidth]{misc/pll_psd.pdf}
}
\begin{frame}{Test setup for 10MHz switch output}
\begin{center}
\includegraphics[width=\textwidth]{measurements/WRSlowJitter/rsz_experimental_setup.png}
\end{center}
\end{frame}
\begin{frame}{WR switch clocking scheme}{Thanks to Mattia Rizzi for the work and
the figures in this section}
\begin{center}
\includegraphics[width=.85\textwidth]{switch/wrs_v3_3_clocking.png}
\end{center}
\end{frame}
\begin{frame}{MMCM noise}
\begin{center}
\includegraphics[height=.7\textheight]{switch/mmcm_noise.png}
\end{center}
\end{frame}
\begin{frame}{WR Switch: low jitter daughterboard}
\begin{columns}
\column{.35\textwidth}
\includegraphics[width=.8\textheight, angle=90]{measurements/WRSlowJitter/rsz_3d_image__1_.jpg}
\column{.65\textwidth}
\begin{itemize}
\item Current release of WRS in GM mode has sub-optimal performance on both jitter (9ps RMS 1Hz-100kHz) and ADEV (1.4E-11 $\tau$=1s ENBW 50Hz)
\item A daughterboard was designed, produced and tested to improve the performance
\item Modified WRS improves performance on both jitter ($<$2ps RMS 10Hz-100kHz) and ADEV ($<$5E-13 $\tau$=1s ENBW 50Hz) in GM mode
\end{itemize}
\end{columns}
\end{frame}
\begin{frame}{Test Results in GM mode: PM noise}
\begin{center}
\includegraphics[height=.85\textheight]{measurements/WRSlowJitter/pn.png}
\end{center}
\end{frame}
\begin{frame}{Test Results in GM mode: Modified ADEV}
\begin{center}
\includegraphics[height=.85\textheight]{measurements/WRSlowJitter/mdev.png}
\end{center}
\end{frame}
\end{document}
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment