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\documentclass[10pt]{datasheet}
\usepackage{palatino}
\usepackage{textgreek}
\usepackage{minted}
\usepackage{tcolorbox}
\usepackage{etoolbox}
\BeforeBeginEnvironment{minted}{\begin{tcolorbox}[colback=white]}%
\AfterEndEnvironment{minted}{\end{tcolorbox}}%
\usepackage[justification=centering]{caption}
\usepackage[utf8]{inputenc}
\usepackage[english]{babel}
\usepackage[english]{isodate}
\usepackage{graphicx}
\usepackage{subfigure}
\usepackage{tikz}
\usepackage{pgfplots}
\usepackage{circuitikz}
\usetikzlibrary{calc}
\usetikzlibrary{fit,backgrounds}
\title{5432 Zotino}
\author{M-Labs Limited}
\date{December 2021}
\revision{Revision 1}
\companylogo{\includegraphics[height=0.73in]{artiq_sinara.pdf}}
\begin{document}
\maketitle
\section{Features}
\begin{itemize}
\item{32-channels DAC.}
\item{16-bits resolution.}
\item{1 MSPS shared between all channels.}
\item{Output voltage $\pm$10V.}
\item{HD68 connector.}
\item{Can be broken out to BNC/SMA/MCX.}
\end{itemize}
\section{Applications}
\begin{itemize}
\item{Variable optical attenuators (VOA).}
\item{Optical switches.}
\item{Industrial control systems.}
\end{itemize}
\section{General Description}
The 5432 Zotino is a 4hp EEM module part of the ARTIQ Sinara family.
It adds digital-analog converting capabilities to carrier cards such as 1124 Kasli and 1125 Kasli-SoC.
It provides 4 groups of 8 analog channels each, exposed by 1 HD68 connector.
Each channel supports output voltage from -10 V to 10 V.
All channels can be updated simultaneously.
% Switch to next column
\vfill\break
\newcommand*{\MyLabel}[3][2cm]{\parbox{#1}{\centering #2 \\ #3}}
\newcommand*{\MymyLabel}[3][4cm]{\parbox{#1}{\centering #2 \\ #3}}
\begin{figure}[h]
\centering
\scalebox{0.88}{
\begin{circuitikz}[european, scale=0.95, every label/.append style={align=center}]
% HD68 Connector
\draw (0, 0) node[muxdemux, muxdemux def={Lh=6.5, Rh=8, w=2, NL=0, NB=0, NR=0}, circuitikz/bipoles/twoport/width=3.2, scale=0.7] (hd68) {HD68};
% EEM Connectors to IDC cards
\draw (2.2, 1.2) node[twoportshape, t={\MyLabel{EEM}{ADC 16-23}}, circuitikz/bipoles/twoport/width=1.8, scale=0.5, rotate=-90] (eem2) {};
\draw (1.4, 1.2) node[twoportshape, t={\MyLabel{EEM}{ADC 24-31}}, circuitikz/bipoles/twoport/width=1.8, scale=0.5, rotate=-90] (eem3) {};
\draw (2.2, -1.2) node[twoportshape, t={\MyLabel{EEM}{ADC 8-15}}, circuitikz/bipoles/twoport/width=1.8, scale=0.5, rotate=-90] (eem1) {};
\draw (1.4, -1.2) node[twoportshape, t={\MyLabel{EEM}{ADC 0-7}}, circuitikz/bipoles/twoport/width=1.8, scale=0.5, rotate=-90] (eem0) {};
% Op-amp x32
\draw (3.6, 0) node[buffer, circuitikz/bipoles/twoport/width=1.2, scale=-0.5] (amp) {};
% DAC AD5372
\draw (5.2, 0) node[twoportshape, t={DAC}, circuitikz/bipoles/twoport/width=1.2, scale=0.7] (dac) {};
% LVDS Transceivers
\draw (6.6, 1.6) node[twoportshape, t=\MymyLabel{LVDS}{Transceiever}, circuitikz/bipoles/twoport/width=1.8, scale=0.5, rotate=-90] (lvds0) {};
\draw (6.6, -1.6) node[twoportshape, t=\MymyLabel{LVDS}{Transceiever}, circuitikz/bipoles/twoport/width=1.8, scale=0.5, rotate=-90] (lvds1) {};
% Aesthetic EEPROM
\draw (6.6, 0) node[twoportshape, t={EEPROM}, circuitikz/bipoles/twoport/width=1.6, scale=0.5, rotate=-90] (eeprom) {};
% EEMs from core device / controllers
\draw (8.2, 0.0) node[twoportshape, t={EEM Port}, circuitikz/bipoles/twoport/width=3.6, scale=0.7, rotate=-90] (eem_in) {};
% Connect EEM IN to LVDS & EEMPROM
\draw [latexslim-latexslim] (eeprom.north) -- (7.85, 0);
\draw [latexslim-latexslim] (lvds0.north) -- (7.85, 1.6);
\draw [latexslim-latexslim] (lvds1.north) -- (7.85, -1.6);
% Connect LVDS to DAC
\draw [latexslim-latexslim] (lvds0.south) -- (5.2, 1.6) -- (dac.north);
\draw [latexslim-latexslim] (lvds1.south) -- (5.2, -1.6) -- (dac.south);
% Connect DAC to Op-amp, label op-amp width x32
\draw [-latexslim] (dac.west) -- (amp.west);
\node [label=below:\tiny{Op-amp x32}] at (3.6, -0.2) {};
% Connect Op-amp to EEM OUT and HD68
\draw [-latexslim] (amp.east) -- (hd68.east);
\draw [-latexslim] (2.2, 0) -- (eem2.east);
\draw [-latexslim] (1.4, 0) -- (eem3.east);
\draw [-latexslim] (2.2, 0) -- (eem1.west);
\draw [-latexslim] (1.4, 0) -- (eem0.west);
\end{circuitikz}
}
\caption{Simplified Block Diagram}
\end{figure}
\begin{figure}[h]
\centering
\includegraphics[width=3in]{photo5432.jpg}
\caption{Zotino Card photo}
\end{figure}
% For wide tables, a single column layout is better. It can be switched
% page-by-page.
\onecolumn
\section{Electrical Specifications}
\begin{table}[h]
\begin{threeparttable}
\caption{Output Specifications}
\begin{tabularx}{\textwidth}{l | c | c c c | c | X}
\thickhline
\textbf{Parameter} & \textbf{Symbol} & \textbf{Min.} & \textbf{Typ.} & \textbf{Max.} &
\textbf{Unit} & \textbf{Conditions} \\
\hline
Output voltage & $V_{out}$ & -10 & & 10 & V & \\
\hline
Output impedance & $Z_{out}$ & \multicolumn{4}{c|}{470 $\Omega$ $||$ 2.2nF} & \\
\hline
Resolution & & & 16 & & bits & \\
\hline
3dB bandwidth & & & 75 & & kHz & \\
\hline
Power consumption & & 3 & & 8.7 & W & \\
\thickhline
\end{tabularx}
\end{threeparttable}
\end{table}
Output noise are measured after 15 cm IDC cable, IDC-SMA, 100 cm coax ($\sim$50 pF), and 500 k$\Omega$ $||$ 150 pF. The DAC output is 3.5 V.
\begin{table}[h]
\begin{threeparttable}
\caption{Electrical Characteristics}
\begin{tabularx}{\textwidth}{l | c | c c c | c | X}
\thickhline
\textbf{Parameter} & \textbf{Symbol} & \textbf{Min.} & \textbf{Typ.} & \textbf{Max.} &
\textbf{Unit} & \textbf{Conditions / Comments} \\
\hline
DC cross-talk & & & -116 & & dB & \\
\hline
Fall-time & & & 18.5 & & $\mu$s & 10\% to 90\% fall-time \\
& & & 25 & & $\mu$s & 1\% to 99\% fall-time \\
\hline
Negative overshoot & & & 0.5\% & & - & \\
\hline
Rise-time & & & 30 & & $\mu$s & 1\% to 99\% rise-time \\
\hline
Positive overshoot & & & 0.65\% & & - & \\
\hline
Output noise & & & & & & \\
\hspace{18mm} @ 100 Hz & & & 500 & & nV/rtHz & 6.9 Hz bandwidth \\
\hspace{18mm} @ 300 Hz & & & 300 & & nV/rtHz & 6.9 Hz bandwidth \\
\hspace{18mm} @ 50 kHz & & & 210 & & nV/rtHz & 6.9 kHz bandwidth \\
\hspace{18mm} @ 1 MHz & & & 4.6 & & nV/rtHz & 6.9 kHz bandwidth \\
\hspace{18mm} $>$ 4 MHz & & & & 1 & nV/rtHz & 6.9 kHz bandwidth \\
\thickhline
\end{tabularx}
\end{threeparttable}
\end{table}
\section{Example ARTIQ code}
The sections below demonstrate simple usage scenarios of the 5432 Zotino card with the ARTIQ control system.
They do not exhaustively demonstrate all the features of the ARTIQ system.
The full documentation for the ARTIQ software and gateware is available at \url{https://m-labs.hk}.
\subsection{Set output voltage}
The following example initializes the Zotino card, then emits 1.0 V, 2.0 V, 3.0 V and 4.0 V at channel 0, 1, 2, 3 respectively.
Voltages of all 4 channels are updated simultaneously with the use of \texttt{set\char`_dac()}.
\begin{minted}{python}
def prepare(self):
self.channels = [0, 1, 2, 3]
self.voltages = [1.0, 2.0, 3.0, 4.0]
@kernel
def run(self):
self.core.reset()
self.core.break_realtime()
self.zotino.init()
delay(1*ms)
self.zotino.set_dac(self.voltages, self.channels)
\end{minted}
\subsection{Triangular Wave}
A triangular waveform at 10 Hz, 16 V peak-to-peak.
Timing accuracy of the RTIO system can be demonstrated by the precision of the frequency.
\begin{minted}{python}
from scipy import signal
import numpy
def prepare(self):
self.period = 0.1*s
self.sample = 128
t = numpy.linspace(0, 1, self.sample)
self.voltages = 8*signal.sawtooth(2*numpy.pi*t, 0.5)
self.interval = self.period/self.sample
@kernel
def run(self):
self.core.reset()
self.core.break_realtime()
self.zotino.init()
delay(1*ms)
counter = 0
while True:
self.zotino.set_dac([self.voltages[counter]], [0])
counter = (counter + 1) % self.sample
delay(self.interval)
\end{minted}
\section{Ordering Information}
To order, please visit \url{https://m-labs.hk} and select the 2128 SMA-TTL in the ARTIQ Sinara crate configuration tool. The card may also be ordered separately by writing to \url{mailto:sales@m-labs.hk}.
\section*{}
\vspace*{\fill}
\begin{footnotesize}
Information furnished by M-Labs Limited is believed to be accurate and reliable. However, no responsibility is assumed by M-Labs Limited for its use, nor for any infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice.
\end{footnotesize}
\end{document}

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