Texas Instruments TAS5601 Volume Tab 4.2.1All Channel Shutdown, 4.2.2Advanced Features EQ and DRC

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Using the EVM Software

Figure 5. Volume Tab

4.2.1All Channel Shutdown

System comes up with all channel shut down asserted.

To exit All Channel Shutdown, select Setup Tab, unselect All Channel Shutdown.

4.2.2Advanced Features : EQ and DRC

EQ and DRC can be designed in ALE (Automatic Loudspeaker Equalization tool).See the EQ/DRC Tool Installation section that appears later in this document. The filters designed in ALE can be saved into a file. Load the ALE output using File -> Load the ALE File and select the ALE output file . Select Autobank switch ON in the EQ tab. The EQ and DRC parameters can be viewed by selecting the EQ viewer or DRC tabs. Coefficients are loaded into DAP in the autobank switch only when a legitimate sample rate is applied. EQ and DRC are loaded before the step described in Section 4.2.1.

4.2.2.1EQ Loading and Viewing

EQ coefficients can be generated using ALE. (See ALE User's Guide.) Once EQ coefficients are generated, they can be loaded into the part using File→Load ALE using the TAS570x GUI.

4.2.2.2DRC Coefficient Loading

DRC coefficients can be generated using ALE and can be loaded using File→Load ALE. Normally, both EQ and DRC coefficients are created and saved as a single file from ALE. DRC1 (satellite channels) and DRC2 (subchannel) can be enabled and disabled using the toggle button in this tab.

8 TAS5601 Digital Power Amplifier With MC5601 Modulator Kit SLOU219–February 2008

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