% Author: Dr. Matthias Jung, DL9MJ
% Year: 2022
\begin{circuitikz}
    \draw(0,0) 
        to [short] ++ (1,0)
        to [twoportsplit, >, l ={\footnotesize Quellencodierer}, name={qc}] ++(1,0)
        to [short, >] ++ (1,0) node[inputarrow]{};
    %% Decoration:
    \draw (qc.north west) node[anchor=north west](){\tiny\texttt{0101}};
    \draw (qc.south east) node[anchor=south east](){\texttt{01}};
\end{circuitikz}