sta381bws STMicroelectronics, sta381bws Datasheet - Page 69

• Manufacturer Part Number: sta381bws
• Description: Sound Terminal 2.1-channel High-efficiency Digital Audio System Sound Terminal 2.1-channel High-efficiency Digital Audio System
• Manufacturer: STMicroelectronics

STA381BWS
6.20
6.20.1
6.20.2
Audio preset registers (0x1D)
AM interference frequency switching
Table 57.
Table 58.
Bass management crossover
Table 59.
Bit
Bit
0
4
5
6
7
XO3
D7
0
AMAM[2:0]
000
001
010
011
100
101
110
R/W
R/W
R/W
R/W
R/W
R/W
R/W
AM interference frequency switching bits
Audio preset AM switching frequency selection
Bass management crossover
XO2
D6
0
RST
RST
0
0
0
0
0
XO1
D5
0
48 kHz/96 kHz input fs
0.535 MHz - 0.720 MHz
0.721 MHz - 0.900 MHz
0.901 MHz - 1.100 MHz
1.101 MHz - 1.300 MHz
1.301 MHz - 1.480 MHz
1.481 MHz - 1.600 MHz
1.601 MHz - 1.700 MHz
AMAME
Name
Doc ID 018937 Rev 2
Name
XO0
XO1
XO2
XO3
XO0
D4
0
Audio preset AM enable
0: switching frequency determined by PWMS setting
1: switching frequency determined by AMAM settings
Selects the bass management crossover frequency.
A 1
2
frequency is performed.
nd
-order low-pass filter (channel 3) at the selected
st
-order high-pass filter (channels 1 and 2) or a
AMAM2
D3
0
Register description: New Map
AMAM1
Description
44.1 kHz/88.2 kHz input fs
Description
D2
0
0.535 MHz - 0.670 MHz
0.671 MHz - 0.800 MHz
0.801 MHz - 1.000 MHz
1.001 MHz - 1.180 MHz
1.181 MHz - 1.340 MHz
1.341 MHz - 1.500 MHz
1.501 MHz - 1.700 MHz
AMAM0
D1
0
AMAME
D0
0
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