forked from sinara-hw/datasheets
4410: replot voltage measured vs expected
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@ -643,6 +643,8 @@ The reported values are obtained from the oscilloscope.
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\caption{RMS voltage, 0dB attenuation}
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\caption{RMS voltage, 0dB attenuation}
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\end{figure}
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\end{figure}
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\columnbreak
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\begin{figure}[H]
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\begin{figure}[H]
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\begin{tikzpicture}
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\begin{tikzpicture}
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\begin{axis}[
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\begin{axis}[
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@ -700,83 +702,79 @@ The reported values are obtained from the oscilloscope.
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\caption{RMS voltage, 15dB attenuation}
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\caption{RMS voltage, 15dB attenuation}
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\end{figure}
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\end{figure}
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\columnbreak
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\end{multicols}
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The expected RMS voltage is described by the linear function $V_\mathrm{rms,exp}(\mathrm{ASF})=\frac{V_\mathrm{rms}(0.1)}{0.1}*\mathrm{ASF}$.
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The measured RMS voltage divided by the full scale expected RMS voltage (i.e. $V_\mathrm{rms,exp}(1)$) is shown below.
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\begin{figure}[H]
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\begin{figure}[H]
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\centering
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\begin{tikzpicture}
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\begin{tikzpicture}
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\begin{axis}[
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\begin{axis}[
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% title={RMS Voltage with 50\textOmega~termination \& 0dB attenuation},
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xlabel={AD9910 Amplitude Scale Factor},
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xlabel={AD9910 Amplitude Scale Factor},
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ylabel={DDS RMS Voltage ($V_{rms}$)},
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ylabel={Scaled RMS Voltage},
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xmin=0, xmax=1,
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xmin=0, xmax=1,
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ymin=0, ymax=1,
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ymin=0, ymax=1.1,
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xtick={0, 0.2, 0.4, 0.6, 0.8, 1},
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xtick={0, 0.2, 0.4, 0.6, 0.8, 1},
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ytick={0, 0.2, 0.4, 0.6, 0.8, 1},
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ytick={0, 0.2, 0.4, 0.6, 0.8, 1},
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legend pos=north west,
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legend pos=north west,
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ymajorgrids=true,
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ymajorgrids=true,
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grid style=dashed,
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grid style=dashed,
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width=0.7\textwidth
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]
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]
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\addplot[
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color=black,
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samples=2,
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ultra thick,
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dotted
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] {x};
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\addplot[
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\addplot[
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color=blue,
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color=blue,
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mark=square,
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mark=square,
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samples=11
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samples=11,
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y filter/.code={\pgfmathparse{\pgfmathresult/0.089807*0.1}\pgfmathresult}
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] coordinates {
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] coordinates {
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(0.0, 0) (0.1, 0.089807) (0.2, 0.179723) (0.3, 0.268852) (0.4, 0.354310) (0.5, 0.441055)
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(0.0, 0) (0.1, 0.089807) (0.2, 0.179723) (0.3, 0.268852) (0.4, 0.354310) (0.5, 0.441055)
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(0.6, 0.526386) (0.7, 0.61233) (0.8, 0.69044) (0.9, 0.75856) (1.0, 0.81703)
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(0.6, 0.526386) (0.7, 0.61233) (0.8, 0.69044) (0.9, 0.75856) (1.0, 0.81703)
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};
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};
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\addplot[
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\addplot[
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color=blue,
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color=orange,
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samples=2,
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mark=square,
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very thick,
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samples=11,
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dotted
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y filter/.code={\pgfmathparse{\pgfmathresult/50.0729*0.1}\pgfmathresult}
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] {0.089807*10*x};
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] coordinates {
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\legend{Measured, Linear Model}
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(0, 0) (0.1, 50.0729) (0.2, 100.309) (0.3, 150.996) (0.4, 200.905) (0.5, 250.004)
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(0.6, 297.000) (0.7, 345.980) (0.8, 394.391) (0.9, 442.869) (1.0, 490.651)
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\end{axis}
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};
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\end{tikzpicture}
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\caption{RMS voltage at 100 MHz, 0dB attenuation}
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\end{figure}
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\begin{figure}[H]
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\begin{tikzpicture}
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\begin{axis}[
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% title={RMS Voltage with 50\textOmega~termination \& 15dB attenuation},
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xlabel={AD9910 Amplitude Scale Factor},
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ylabel={DDS RMS Voltage ($mV_{rms}$)},
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xmin=0, xmax=1,
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ymin=0, ymax=200,
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xtick={0, 0.2, 0.4, 0.6, 0.8, 1},
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ytick={0, 40, 80, 120, 160, 200},
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legend pos=north west,
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ymajorgrids=true,
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grid style=dashed,
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]
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\addplot[
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\addplot[
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color=blue,
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color=green,
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mark=square,
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mark=square,
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samples=11
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samples=11,
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y filter/.code={\pgfmathparse{\pgfmathresult/28.4696*0.1}\pgfmathresult}
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] coordinates {
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(0, 0) (0.1, 28.4696) (0.2, 57.143) (0.3, 85.776) (0.4, 114.694) (0.5, 143.302)
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(0.6, 171.911) (0.7, 200.098) (0.8, 227.816) (0.9, 256.321) (1.0, 281.930)
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};
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\addplot[
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color=red,
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mark=square,
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samples=11,
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y filter/.code={\pgfmathparse{\pgfmathresult/16.6691*0.1}\pgfmathresult}
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] coordinates {
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] coordinates {
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(0, 0) (0.1, 16.6691) (0.2, 33.3762) (0.3, 49.8844) (0.4, 67.055) (0.5, 83.652)
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(0, 0) (0.1, 16.6691) (0.2, 33.3762) (0.3, 49.8844) (0.4, 67.055) (0.5, 83.652)
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(0.6, 99.970) (0.7, 116.906) (0.8, 133.368) (0.9, 150.839) (1.0, 167.033)
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(0.6, 99.970) (0.7, 116.906) (0.8, 133.368) (0.9, 150.839) (1.0, 167.033)
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};
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};
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\legend{Expected response, 0dB attenuation, 5dB attenuation, 10dB attenuation, 15dB attenuation}
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\addplot[
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color=blue,
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samples=2,
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very thick,
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dotted
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] {16.6691*10*x};
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\legend{Measured, Linear Model}
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\end{axis}
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\end{axis}
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\end{tikzpicture}
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\end{tikzpicture}
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\caption{RMS voltage at 100 MHz, 15dB attenuation}
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\caption{RMS voltage scaled by expected voltage at ASF=1, 100 MHz}
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\end{figure}
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\end{figure}
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\end{multicols}
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\newpage
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\newpage
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