STA559BWQS13TR STMICROELECTRONICS [STMicroelectronics], STA559BWQS13TR Datasheet - Page 35
STA559BWQS13TR
Manufacturer Part Number
STA559BWQS13TR
Description
5-V, 2-A, 2.1-channel high-efficiency digital audio system with QSound QHD
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.STA559BWQS13TR.pdf
(66 pages)
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STA559BWQS
5.4.3
5.4.4
5.4.5
DSP bypass
Table 30.
Setting the DSPB bit bypasses the EQ functionality of the STA559BWQS.
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.
Bit
Bit
Bit
2
3
4
RW
RW
RW
RW
RW
RW
DSP bypass
Post-scale link
Biquad coefficient link
RST
RST
RST
0
0
0
Name
DSPB
Name
Name
PSL
BQL
DSP bypass bit:
0: Normal operation
1: Bypass of biquad and bass/treble functionality
Post-scale link:
0: Each channel uses individual post-scale value
1: Each channel uses channel 1 post-scale value
Biquad link:
0: Each channel uses coefficient values
1: Each channel uses channel 1 coefficient values
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