sta333bwqs13tr STMicroelectronics, sta333bwqs13tr Datasheet - Page 33

• Manufacturer Part Number: sta333bwqs13tr
• Description: 2.1-channel High-efficiency Digital Audio System With Qsound Qhd
• Manufacturer: STMicroelectronics

STA333BWQS
6.4.3
6.4.4
6.4.5
6.4.6
DSP bypass
Table 30.
Setting the DSPB bit bypasses the EQ functionality of the STA333BWQS.
Post-scale link
Table 31.
Post-scale functionality can be used for power-supply error correction. For multi-channel
applications running off the same power-supply, the post-scale values can be linked to the
value of channel 1 for ease of use and update the values faster.
Biquad coefficient link
Table 32.
For ease of use, all channels can use the biquad coefficients loaded into the Channel 1
Coefficient RAM space by setting the BQL bit to 1. Therefore, any EQ updates only have to
be performed once.
Dynamic range compression/anti-clipping bit
Table 33.
Both limiters can be used in one of two ways, anti-clipping or dynamic range compression.
When used in anti-clipping mode the limiter threshold values are constant and dependent on
the limiter settings. In dynamic range compression mode the limiter threshold values vary
with the volume settings allowing a nighttime listening mode that provides a reduction in the
dynamic range regardless of the volume level.
Bit
Bit
Bit
Bit
2
3
4
5
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
DSP bypass
Post-scale link
Biquad coefficient link
Dynamic range compression/anti-clipping bit
RST
RST
RST
RST
0
0
0
0
Name
DRC
Name
DSPB
Name
Name
PSL
BQL
0: limiters act in anti-clipping mode
1: limiters act in dynamic range compression mode
0: normal operation
1: bypass of biquad and bass/treble functionality
0: each channel uses individual post-scale value
1: each channel uses channel 1 post-scale value
0: each channel uses coefficient values
1: each channel uses channel 1 coefficient values
Description
Description
Description
Description
Register description
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