STA382BW datasheet(126/172 Pages) STMICROELECTRONICS

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STA382BW

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Doc ID 022783 Rev 1

7.8

Audio preset registers (addr 0x0C)

7.8.1

Audio preset register (addr 0x0C)

7.8.2

AM interference frequency switching

7.8.3

Bass management crossover

XO3

XO2

XO1

XO0

AMAM2

AMAM1

AMAM0

AMAME

Table 137.

AM interference frequency switching bits

Bit

R/W

RST

Name

Description

R/W

AMAME

Audio preset AM enable

0: switching frequency determined by PWMS setting

1: switching frequency determined by AMAM settings

Table 138.

Audio preset AM switching frequency selection

AMAM[2:0]

48 kHz/96 kHz input fs

44.1 kHz/88.2 kHz input fs

000

0.535 MHz - 0.720 MHz

0.535 MHz - 0.670 MHz

001

0.721 MHz - 0.900 MHz

0.671 MHz - 0.800 MHz

010

0.901 MHz - 1.100 MHz

0.801 MHz - 1.000 MHz

011

1.101 MHz - 1.300 MHz

1.001 MHz - 1.180 MHz

100

1.301 MHz - 1.480 MHz

1.181 MHz - 1.340 MHz

101

1.481 MHz - 1.600 MHz

1.341 MHz - 1.500 MHz

110

1.601 MHz - 1.700 MHz

1.501 MHz - 1.700 MHz

Table 139.

Bass management crossover

Bit

R/W

RST

Name

Description

4R/W

XO0

Selects the bass management crossover frequency.

A 1st-order high-pass filter (channels 1 and 2) or a

2nd-order low-pass filter (channel 3) at the selected

frequency is performed.

5R/W

XO1

6R/W

XO2

7R/W

XO3

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