Commit 48899fc0 authored by Maciej Lipinski's avatar Maciej Lipinski

Cosmetic corrections

parent 36d0b7be
......@@ -447,8 +447,8 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
\item<2-> \textbf{Bitslide} -- measurement uncertainty
\begin{itemize}\scriptsize
\item Measured each time link goes up
\item Value provided by GTX of FPGA
\item Error: $\pm$35ps for GTX
\item Value provided by transceiver in FPGA
\item Error: $\approx\pm$50ps for GTX (Virtex 6)
\item Remedy: ensure bitslide is zero \\(ongoing work at CERN)
\end{itemize}
\end{itemize}
......@@ -557,13 +557,13 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
\begin{itemize}\scriptsize
\item<1-> \textbf{DDMTD}
\begin{itemize}\scriptsize
\item Flicker PM noise: -100 dBc at 1 Hz
\item Flicker PM noise: -100 dBc/Hz at 1 Hz
\begin{itemize}\tiny
\item Dominant $<$ 10Hz,
\item MDEV 4E-13 at $\tau=1s$
\item LVDS input clock buffer and clock routing
\end{itemize}
\item White PM noise: -108 dBc
\item White PM noise: -108 dBc/Hz
\begin{itemize}\tiny
\item Limits the phase noise to -108 dBc/Hz
\item Thermal, DFF meta-stability, noise due to aliasing
......@@ -572,8 +572,8 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
\end{itemize}
\item<3-> \textbf{GTX}
\begin{itemize}\scriptsize
\item Flicker PM noise: -100 dBc at 1 Hz
\item White PM noise: -106 dBc\\ MDEV 4E-13 at $\tau=1s$
\item Flicker PM noise: -100 dBc/Hz at 1 Hz
\item White PM noise: -106 dBc/Hz\\ MDEV 4E-13 at $\tau=1s$
\end{itemize}
\item<4-> Remedy: none, inherent to technology
\end{itemize}
......@@ -609,7 +609,7 @@ INRIM & Italy & 70~km & 610ps $\pm$47ps\\ \hline
\begin{itemize}\scriptsize
\item Noisy internal Virtex-6 MMCM PLL
\item Large phase noise power at 10kHz to 2MHz
\item Phase noise above DDMTD Nyquist (1.9kHz) bandwidth folds back to baseband
\item Phase noise above DDMTD Nyquist (1.9kHz) bandwidth folds back to baseband [14]
\item Remedy: external PLL to synthesize 62.5MHz from 10MHz (see daughterboard [16])
\end{itemize}
......
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