Using the GUI Software
13
SLOU481A – August 2017 – Revised October 2017
Copyright © 2017, Texas Instruments Incorporated
TAS5755MEVM Evaluation Module
3.4.1
Woofer Channel Defaults to Low Pass Configuration
The GUI defaults to a 2.1 configuration where the BTL CD channel receives a low pass filter. However,
due to a bug in the GUI, this low pass filter is not shown. To fix this problem the BQ4a block should be
opened and the current settings applied to the channel by clicking the
Apply
button as shown in
This will ensure the GUI and the EVM filters are in sync.
Figure 16. Fixing Low Pass Filter Bug on Woofer Channel
3.5
Using the DRC Function:
The TAS5755M has two DRC blocks; DRC-1 and DRC-2. Left and right channels are processed using
DRC-1, and the sub-channel is processed via DRC-2. The DRC blocks on the TAS57X1 GUI are
highlighted in
. A single click on the DRC block brings up the I
2
C register information in the
properties window as seen in
. The default state of the DRC control is in disabled state, as seen
in the
Runtime Properties
section of
. To use the DRC function in the GUI, update the DRC
control to the
Enabled
state. Note that the DRC-1 and DRC-2 have independent enable and disable
controls.
