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Bus Combiner Module

The bus combiner module provides the capability to dynamically reconfigure the signal architecture of the unit. Since the input and output sections are divided up in to buses of 8 audio signals, these buses can be combined or separated, changing the architecture of the mixer. This is only useful in systems with less than sixteen mix modules, as there are not enough mixer chips to fully cover a 32x16 mix configuration. In a four or eight mix module system, bus combination is necessary, to reduce the number of inputs to gain a large amount of outputs, or vice-versa. Figure 21 shows the input bus combiner diagram, while figure 22 shows the output bus combiner diagram. These are shown separately only for clarity; they shall be combined in the same module on the prototype.

Figure 21: Mixer unit, bus combiner module diagram (input buses).
\begin{figure}
\psfig{file=fig/buscomb-inp.eps,width=5in}
\end{figure}

Figure 22: Mixer unit, bus combiner module diagram (output buses).
\begin{figure}
\psfig{file=fig/buscomb-out.eps,width=4in}
\end{figure}


next up previous contents
Next: Digital VU Module Up: Mixer Unit Previous: Audio Mix Modules   Contents
Steve Richardson 2000-07-06
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