Datasheet

Program Description
3-31
Operation
Figure 3−17. Bass Boost Filter Screen With Bad Data
In addition to the direct coefficient settings previously described, there are six
preconfigured filters designed with the EVM software, selectable using the
drop-down list of this screen, refer to Figure 3−18. On selection, the
coefficients are updated along with the graph of the filter response to the
selection. However, nothing is loaded into the TSC2101 until the Download
button is pressed.
Checking the Boost Filter box enables the filter selected.
In addition to the boost filter, is another digital filter, the de-emphasis filter is
provided by TSC2101 for the audio DAC. Checking the Deemphasis Filter On
box enables the filter.
Settings on this tab can reduce the pop noise heard at the moment the power
supply (-ies) is brought up to the TSC2101. The pop noise reduction can be
set on the DAC or the analog output driver circuit. Click on the Enable DAC PR
checkbox to enable the DAC pop reduction feature. Click on the Enable Driver
PR checkbox to enable the output driver pop reduction feature. Set the Clock
Frequency and duration to change and optimize the noise reduction effects.