prefect
Home Engineering Publications
DACS: Audio Input Module
 
  next up previous contents
Next: Audio Mix Modules Up: Mixer Unit Previous: Module Overview   Contents

Audio Input Module

As per high-level specifications, each audio input can be either balanced or unbalanced. Each input module consists of eight tip-ring-sleeve 1/4 inch jacks, appropriate circuitry for processing the input signals, and appropriate Pbus interface circuitry. As per specifications, a digitally-controlled gain stage shall be employed, to provide a trim adjust for each input. Figure 19 shows a block diagram of an audio input module. A standard system has four of these modules.

Figure 19: Mixer unit, audio input module diagram.
\begin{figure}
\psfig{file=fig/inputmodule.eps,width=5in}
\end{figure}



Steve Richardson 2000-07-06
Table of Contents

[PDF] [Whole document in PDF 1.9MB]

[more photos and information]

 
Page last modified:
Copyright © 1993-2000 prefect - All Rights Reserved.