sta335bwsqs13tr STMicroelectronics, sta335bwsqs13tr Datasheet - Page 32

• Manufacturer Part Number: sta335bwsqs13tr
• Description: 2.1-channel, High-efficiency Digital Audio System With Qsound Qhd
• Manufacturer: STMicroelectronics

Register description
6.4
6.4.1
6.4.2
6.4.3
6.4.4
32/70
Configuration register D (addr 0x03)
High-pass filter bypass
Table 27.
The STA335BWSQS features an internal digital high-pass filter for the purpose of AC
coupling. The purpose of this filter is to prevent DC signals from passing through a DDX
amplifier. DC signals can cause speaker damage. When HPB = 0, this filter is enabled.
De-emphasis
Table 28.
Setting the DEMP bit enables de-emphasis on all channels
DSP bypass
Table 29.
Setting the DSPB bit bypasses the EQ functionality of the STA335BWSQS.
Post-scale link
Table 30.
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.
Bit
Bit
Bit
Bit
0
1
2
3
MME
D7
0
RW
RW
RW
RW
RW
RW
RW
RW
HPB
DEMP
DSPB
PSL
ZDE
D6
1
RST
RST
RST
RST
0
0
0
0
DRC
D5
0
DEMP
Name
Name
Name
DSPB
Name
HPB
PSL
BQL
D4
0
Setting of one bypasses internal AC coupling digital
high-pass filter
0: No de-emphasis
1: De-emphasis
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
PSL
D3
0
DSPB
Description
Description
Description
Description
D2
0
DEMP
D1
0
STA335BWSQS
HPB
D0
0
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