STA333IS datasheet(32/43 Pages) STMICROELECTRONICS

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STA333IS

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DocID022855 Rev 4

5.3

Automodes™ register (0x0C)

AM interference frequency switching

AMAM bits

Table 42. Channel volume as a function of CxV

CxV[7:0]

Volume

00000000 (0x00)

+48 dB

00000001 (0x01)

+47.5 dB

00000010 (0x02)

+47 dB

……

01011111 (0x5F)

+0.5 dB

01100000 (0x60)

0 dB

01100001 (0x61)

-0.5 dB

……

11010111 (0xD7)

-59.5 dB

11011000 (0xD8)

-60 dB

11011001 (0xD9)

-61 dB

11011010 (0xDA)

-62 dB

……

11101100 (0xEC)

-80 dB

11101101 (0xED)

Hard channel mute

……

11111111 (0xFF)

Hard channel mute

Reserved

AMAM2

AMAM1

AMAM0

AMAME

Table 43. AM interference frequency switching

Bit

R/W

RST

Name

Description

0R/W

0AMAME

0: switching frequency determined by PWMS setting

1: switching frequency determined by AMAM setting

Table 44. Automodes™ 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

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