sta323wqs STMicroelectronics, sta323wqs Datasheet - Page 41

• Manufacturer Part Number: sta323wqs
• Description: 2.1-channel High-efficiency Digital Audio System With Qsound Qhd??
• Manufacturer: STMicroelectronics

STA323WQS
7.5
7.5.1
7.5.2
7.5.3
7.5.4
Configuration register D (address 0x03)
High-pass filter bypass
Table 29.
The STA323WQS features an internal digital high-pass filter for DC blocking. The purpose of
this filter is to prevent DC signals from passing through a DDX® amplifier. DC signals can
cause speaker damage.
De-emphasis
Table 30.
By setting this bit to 1, de-emphasis is implemented on all channels. DSPB (DSP Bypass,
Bit D2, CFA) bit must be set to 0 for de-emphasis to function.
DSP bypass
Table 31.
Setting the DSPB bit bypasses all the EQ and mixing functionality of the STA323WQS core.
Post-scale link
Table 32.
0
1
2
3
Bit
Bit
Bit
Bit
MME
D7
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
High-pass filter bypass
De-emphasis
DSP bypass
Post-scale link
R/W
0
RST
0
ZDE
RST
D6
0
0
PSL
0
DSPB
RST
Name
RST
DRC
D5
Name
0
DEMP
HPB
0: normal operation
1: bypass of EQ and mixing functionality
Name
Name
BQL
D4
0
0: each channel uses individual post-scale value
1: each channel uses channel 1 post-scale value
0: AC coupling high pass filter enabled
1: AC coupling high pass filter enabled
0: no de-emphasis
1: de-emphasis
PSL
D3
0
Description
DSPB
D2
Description
0
Description
Description
Register descriptions
DEMP
D1
0
HPB
D0
0
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