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An348 – Cirrus Logic AN348 User Manual

Page 8

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AN348

8

AN348REV2

Here is what the workspace looks like now:

Next, we need to create additional three instances of the high-shelf and low-pass filter blocks. Simply select the individual blocks,
press + (for duplication), and enter the required number of blocks to be reproduced. Re-arrange all blocks and use
+ to change to Wire mode, then connect all elements. Refer to the DSP Composer Manual Data Sheets DS704 for
more advanced wiring modes and interconnection details.

As a result, we have created the following audio processing chain. The 5 x 4 router allows an easy assignment of the sine wave
generator signal to test individual channels. The presence detectors are for monitoring purposes of either test tones or input
signals which are digitized by the on-board CODEC.