From 6d9faa7bb9e5cc18ad1cc2d6201fbb07fc97e1fd Mon Sep 17 00:00:00 2001 From: occheung Date: Thu, 23 Jun 2022 16:58:16 +0800 Subject: [PATCH] 4410: add asf vs v_rms --- 4410-4412.tex | 199 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 199 insertions(+) diff --git a/4410-4412.tex b/4410-4412.tex index e462521..596e60a 100644 --- a/4410-4412.tex +++ b/4410-4412.tex @@ -581,6 +581,205 @@ Harmonic content of the DDS signals from 4410 DDS Urukul is tabulated below\foot \newpage +The RMS voltage of a 4410 DDS Urukul channel at different amplitude scale factor is measured. +The DDS channel is directly connected to an oscilloscope with a 50\textOmega~termination. +The reported values are obtained from the oscilloscope. + +\begin{multicols}{2} +\begin{figure}[H] + \begin{tikzpicture} + \begin{axis}[ + % title={RMS Voltage with 50\textOmega~termination \& 0dB attenuation}, + xlabel={AD9910 Amplitude Scale Factor}, + ylabel={DDS RMS Voltage ($V_{rms}$)}, + xmin=0, xmax=1, + ymin=0, ymax=1, + xtick={0, 0.2, 0.4, 0.6, 0.8, 1}, + ytick={0, 0.2, 0.4, 0.6, 0.8, 1}, + legend pos=north west, + ymajorgrids=true, + grid style=dashed, + ] + + \addplot[ + color=black, + mark=square, + samples=11 + ] coordinates { + (0.0, 0) (0.1, 0.087924) (0.2, 0.176157) (0.3, 0.262437) (0.4, 0.345833) (0.5, 0.429203) + (0.6, 0.512235) (0.7, 0.59130) (0.8, 0.66877) (0.9, 0.73344) (1.0, 0.78761) + }; + + \addplot[ + color=blue, + mark=square, + samples=11 + ] coordinates { + (0.0, 0) (0.1, 0.089807) (0.2, 0.179723) (0.3, 0.268852) (0.4, 0.354310) (0.5, 0.441055) + (0.6, 0.526386) (0.7, 0.61233) (0.8, 0.69044) (0.9, 0.75856) (1.0, 0.81703) + }; + + \addplot[ + color=green, + mark=square, + samples=11 + ] coordinates { + (0.0, 0) (0.1, 0.093101) (0.2, 0.186762) (0.3, 0.277704) (0.4, 0.369172) (0.5, 0.459391) + (0.6, 0.548191) (0.7, 0.63607) (0.8, 0.71469) (0.9, 0.78221) (1.0, 0.84139) + }; + + \addplot[ + color=red, + mark=square, + samples=11 + ] coordinates { + (0, 0) (0.1, 0.092502) (0.2, 0.184728) (0.3, 0.276224) (0.4, 0.366914) (0.5, 0.457255) + (0.6, 0.544924) (0.7, 0.62991) (0.8, 0.70582) (0.9, 0.77104) (1.0, 0.82737) + }; + \legend{200 MHz, 100 MHz, 50 MHz, 10 MHz} + + \end{axis} + \end{tikzpicture} +\caption{RMS voltage, 0dB attenuation} +\end{figure} + +\begin{figure}[H] +\begin{tikzpicture} + \begin{axis}[ + % title={RMS Voltage with 50\textOmega~termination \& 15dB attenuation}, + xlabel={AD9910 Amplitude Scale Factor}, + ylabel={DDS RMS Voltage ($mV_{rms}$)}, + xmin=0, xmax=1, + ymin=0, ymax=200, + xtick={0, 0.2, 0.4, 0.6, 0.8, 1}, + ytick={0, 40, 80, 120, 160, 200}, + legend pos=north west, + ymajorgrids=true, + grid style=dashed, + ] + + \addplot[ + color=black, + mark=square, + samples=11 + ] coordinates { + (0, 0) (0.1, 16.1805) (0.2, 32.1530) (0.3, 48.2039) (0.4, 64.172) (0.5, 80.452) + (0.6, 96.405) (0.7, 112.427) (0.8, 128.776) (0.9, 144.967) (1.0, 161.148) + }; + + \addplot[ + color=blue, + mark=square, + samples=11 + ] coordinates { + (0, 0) (0.1, 16.6691) (0.2, 33.3762) (0.3, 49.8844) (0.4, 67.055) (0.5, 83.652) + (0.6, 99.970) (0.7, 116.906) (0.8, 133.368) (0.9, 150.839) (1.0, 167.033) + }; + + \addplot[ + color=green, + mark=square, + samples=11 + ] coordinates { + (0, 0) (0.1, 17.0562) (0.2, 34.0713) (0.3, 51.0456) (0.4, 68.241) (0.5, 85.241) + (0.6, 102.328) (0.7, 119.279) (0.8, 136.584) (0.9, 153.737) (1.0, 170.829) + }; + + \addplot[ + color=red, + mark=square, + samples=11 + ] coordinates { + (0, 0) (0.1, 16.8030) (0.2, 33.6407) (0.3, 50.4039) (0.4, 67.348) (0.5, 84.127) + (0.6, 100.852) (0.7, 117.618) (0.8, 134.415) (0.9, 151.267) (1.0, 168.160) + }; + \legend{200 MHz, 100 MHz, 50 MHz, 10 MHz} + + \end{axis} +\end{tikzpicture} +\caption{RMS voltage, 15dB attenuation} +\end{figure} + +\columnbreak + +\begin{figure}[H] + \begin{tikzpicture} + \begin{axis}[ + % title={RMS Voltage with 50\textOmega~termination \& 0dB attenuation}, + xlabel={AD9910 Amplitude Scale Factor}, + ylabel={DDS RMS Voltage ($V_{rms}$)}, + xmin=0, xmax=1, + ymin=0, ymax=1, + xtick={0, 0.2, 0.4, 0.6, 0.8, 1}, + ytick={0, 0.2, 0.4, 0.6, 0.8, 1}, + legend pos=north west, + ymajorgrids=true, + grid style=dashed, + ] + + \addplot[ + color=blue, + mark=square, + samples=11 + ] coordinates { + (0.0, 0) (0.1, 0.089807) (0.2, 0.179723) (0.3, 0.268852) (0.4, 0.354310) (0.5, 0.441055) + (0.6, 0.526386) (0.7, 0.61233) (0.8, 0.69044) (0.9, 0.75856) (1.0, 0.81703) + }; + + \addplot[ + color=blue, + samples=2, + very thick, + dotted + ] {0.089807*10*x}; + \legend{Measured, Linear Model} + + \end{axis} + \end{tikzpicture} +\caption{RMS voltage at 100 MHz, 0dB attenuation} +\end{figure} + +\begin{figure}[H] + \begin{tikzpicture} + \begin{axis}[ + % title={RMS Voltage with 50\textOmega~termination \& 15dB attenuation}, + xlabel={AD9910 Amplitude Scale Factor}, + ylabel={DDS RMS Voltage ($mV_{rms}$)}, + xmin=0, xmax=1, + ymin=0, ymax=200, + xtick={0, 0.2, 0.4, 0.6, 0.8, 1}, + ytick={0, 40, 80, 120, 160, 200}, + legend pos=north west, + ymajorgrids=true, + grid style=dashed, + ] + + \addplot[ + color=blue, + mark=square, + samples=11 + ] coordinates { + (0, 0) (0.1, 16.6691) (0.2, 33.3762) (0.3, 49.8844) (0.4, 67.055) (0.5, 83.652) + (0.6, 99.970) (0.7, 116.906) (0.8, 133.368) (0.9, 150.839) (1.0, 167.033) + }; + + \addplot[ + color=blue, + samples=2, + very thick, + dotted + ] {16.6691*10*x}; + \legend{Measured, Linear Model} + + \end{axis} + \end{tikzpicture} + \caption{RMS voltage at 100 MHz, 15dB attenuation} + \end{figure} + +\end{multicols} + +\newpage + \begin{multicols}{2} \begin{figure}[H]