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4410-4412: fix dds signal spec citation 

* cite wiki instead of datasheets for frequency range, as the rest of the signal chain has low response for low frequency
* cite wiki instead of ad9912 datasheet for frequency resolution, see the ad9912 design bug on wiki
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occheung 2022-01-18 17:05:28 +08:00
parent 022563a056
commit 2613df692b
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4410-4412.tex
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@ -349,12 +349,12 @@ and corresponding test results\footnote{\label{sinara354}https://github.com/sina
Low frequency power\repeatfootnote{sinara354} & $P(f)$ & & & -20 & dBm & 100 kHz output \\
& & & & 10 & dBm & 1 MHz output \\
\hline
Frequency\repeatfootnote{ad9910} & $f_{out}$ & 1 & & 400 & MHz & \\
Frequency\repeatfootnote{urukul_wiki} & $f_{out}$ & 1 & & 400 & MHz & \\
\hline
Digital Attenuation\repeatfootnote{attenuator} & $\frac{P_{out}}{P_{dds}}$ & -31.5 & & 0 & dB & \\
\hline
Resolution & & & & & & \\
\hspace{3mm} Frequency\repeatfootnote{ad9910}\textsuperscript{,}\repeatfootnote{ad9912} & $Q_f$ & & 0.25 & & Hz & AD9910 \\
\hspace{3mm} Frequency\repeatfootnote{ad9910}\textsuperscript{,}\repeatfootnote{urukul_wiki} & $Q_f$ & & 0.25 & & Hz & AD9910 \\
& & & 8 & & $\mu$Hz & AD9912 \\
\hspace{3mm} Phase offset\repeatfootnote{ad9910}\textsuperscript{,}\repeatfootnote{ad9912} & $Q_\theta$ & & 16 & & bits & AD9910 \\
& & & 14 & & bits & AD9912 \\