TAS5504_06 datasheet(90/96 Pages) TI

90 / 96 page

Serial Control Interface Register Definitions

SLES123 − October 2004

TAS5504

6.33 Treble Filter Index (0xDD)

Index values above 0x24 are invalid.

Table 6−43. Treble Filter Index Register

I2C

SUBADDRESS

TOTAL BYTES

NAME

DESCRIPTION OF CONTENTS

DEFAULT STATE

0xDD

Treble filter index (TFI)

Ch4_TFI (31:24), NONE (23:16), NONE (15:8),

Ch321_TFI (7:0)

0x12,0x12,0x12,0x12

Table 6−44. Treble Filter Index

TREBLE INDEX VALUE

ADJUSTMENT (DB)

TREBLE INDEX VALUE

ADJUSTMENT (DB)

0x00

+18

0x13

−1

0x01

+17

0x14

−2

0x02

+16

0x15

−3

0x03

+15

0x16

−4

0x04

+14

0x17

−5

0x05

+13

0x18

−6

0x\06

+12

0x19

−7

0x07

+11

0x1A

−8

0x08

+10

0x1B

−9

0x09

0x1C

−10

0x0A

0x1D

−11

0x0B

0x1E

−12

0x0C

0x1F

−13

0x0D

0x20

−14

0x0E

0x21

−15

0x0F

0x22

−16

0x10

0x23

−17

0x11

0x24

−18

0x12

6.34 AM Mode Register (0xDE)

Bits D31−D21 are Don’t Care.

Table 6−45. AM Mode Register

D31

D30

D29

D28

D27

D26

D25

D24

FUNCTION

Unused bits

D23

D22

D21

D20

D19

D18

D17

D16

FUNCTION

−

AM mode disabled

−

AM mode enabled

−

Select sequence 1

−

Select sequence 2

−

Select sequence 3

−

Select sequence 4

−

IF frequency 455

−

IF frequency 262.5

−

Use BCD tuned frequency

−

Use binary tuned frequency

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