Compare commits
No commits in common. "c1388a53a83f432f7f2036d0500c8478bfa4fea5" and "6d9faa7bb9e5cc18ad1cc2d6201fbb07fc97e1fd" have entirely different histories.
c1388a53a8
...
6d9faa7bb9
|
|
@ -589,6 +589,7 @@ The reported values are obtained from the oscilloscope.
|
|||
\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,
|
||||
|
|
@ -642,11 +643,10 @@ The reported values are obtained from the oscilloscope.
|
|||
\caption{RMS voltage, 0dB attenuation}
|
||||
\end{figure}
|
||||
|
||||
\columnbreak
|
||||
|
||||
\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,
|
||||
|
|
@ -700,79 +700,83 @@ The reported values are obtained from the oscilloscope.
|
|||
\caption{RMS voltage, 15dB attenuation}
|
||||
\end{figure}
|
||||
|
||||
\end{multicols}
|
||||
|
||||
The expected RMS voltage is described by the linear function $V_\mathrm{rms,exp}(\mathrm{ASF})=\frac{V_\mathrm{rms}(0.1)}{0.1}*\mathrm{ASF}$.
|
||||
The measured RMS voltage divided by the full scale expected RMS voltage (i.e. $V_\mathrm{rms,exp}(1)$) is shown below.
|
||||
\columnbreak
|
||||
|
||||
\begin{figure}[H]
|
||||
\centering
|
||||
\begin{tikzpicture}
|
||||
\begin{axis}[
|
||||
% title={RMS Voltage with 50\textOmega~termination \& 0dB attenuation},
|
||||
xlabel={AD9910 Amplitude Scale Factor},
|
||||
ylabel={Scaled RMS Voltage},
|
||||
ylabel={DDS RMS Voltage ($V_{rms}$)},
|
||||
xmin=0, xmax=1,
|
||||
ymin=0, ymax=1.1,
|
||||
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,
|
||||
width=0.7\textwidth
|
||||
]
|
||||
|
||||
\addplot[
|
||||
color=black,
|
||||
samples=2,
|
||||
ultra thick,
|
||||
dotted
|
||||
] {x};
|
||||
|
||||
\addplot[
|
||||
color=blue,
|
||||
mark=square,
|
||||
samples=11,
|
||||
y filter/.code={\pgfmathparse{\pgfmathresult/0.089807*0.1}\pgfmathresult}
|
||||
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=orange,
|
||||
mark=square,
|
||||
samples=11,
|
||||
y filter/.code={\pgfmathparse{\pgfmathresult/50.0729*0.1}\pgfmathresult}
|
||||
] coordinates {
|
||||
(0, 0) (0.1, 50.0729) (0.2, 100.309) (0.3, 150.996) (0.4, 200.905) (0.5, 250.004)
|
||||
(0.6, 297.000) (0.7, 345.980) (0.8, 394.391) (0.9, 442.869) (1.0, 490.651)
|
||||
};
|
||||
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=green,
|
||||
color=blue,
|
||||
mark=square,
|
||||
samples=11,
|
||||
y filter/.code={\pgfmathparse{\pgfmathresult/28.4696*0.1}\pgfmathresult}
|
||||
] coordinates {
|
||||
(0, 0) (0.1, 28.4696) (0.2, 57.143) (0.3, 85.776) (0.4, 114.694) (0.5, 143.302)
|
||||
(0.6, 171.911) (0.7, 200.098) (0.8, 227.816) (0.9, 256.321) (1.0, 281.930)
|
||||
};
|
||||
|
||||
\addplot[
|
||||
color=red,
|
||||
mark=square,
|
||||
samples=11,
|
||||
y filter/.code={\pgfmathparse{\pgfmathresult/16.6691*0.1}\pgfmathresult}
|
||||
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)
|
||||
};
|
||||
\legend{Expected response, 0dB attenuation, 5dB attenuation, 10dB attenuation, 15dB attenuation}
|
||||
|
||||
\addplot[
|
||||
color=blue,
|
||||
samples=2,
|
||||
very thick,
|
||||
dotted
|
||||
] {16.6691*10*x};
|
||||
\legend{Measured, Linear Model}
|
||||
|
||||
\end{axis}
|
||||
\end{tikzpicture}
|
||||
\caption{RMS voltage scaled by expected voltage at ASF=1, 100 MHz}
|
||||
\end{figure}
|
||||
\caption{RMS voltage at 100 MHz, 15dB attenuation}
|
||||
\end{figure}
|
||||
|
||||
\end{multicols}
|
||||
|
||||
\newpage
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue