STA333BW_11 STMICROELECTRONICS [STMicroelectronics], STA333BW_11 Datasheet - Page 29
STA333BW_11
Manufacturer Part Number
STA333BW_11
Description
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.STA333BW_11.pdf
(67 pages)
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STA333BW
6.1.4
Configuration register D (addr 0x03)
High-pass filter bypass
Table 26.
The STA333BW 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 FFX amplifier. DC
signals can cause speaker damage. When HPB = 0, this filter is enabled.
De-emphasis
Table 27.
DSP bypass
Table 28.
Setting the DSPB bit bypasses the EQ function of the STA333BW.
Postscale link
Table 29.
Postscale function can be used for power-supply error correction. For multi-channel
applications running off the same power-supply, the postscale values can be linked to the
value of channel 1 for ease of use and update the values faster.
0
1
2
3
Bit
Bit
Bit
Bit
SME
D7
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
High-pass filter bypass
De-emphasis
DSP bypass
Postscale link
ZDE
D6
1
0
0
0
0
RST
RST
RST
RST
HPB
DEMP
DSPB
PSL
DRC
D5
0
Doc ID 13773 Rev 3
Name
Name
Name
Name
BQL
D4
0
1: bypass internal AC coupling digital high-pass filter
0: no de-emphasis
1: enable de-emphasis on all channels
0: normal operation
1: bypass of biquad and bass / treble functions
0: each channel uses individual postscale value
1: each channel uses channel 1 postscale value
PSL
D3
0
DSPB
Description
Description
Description
Description
D2
0
Register description
DEMP
D1
0
HPB
D0
0
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