TAS5504_06 datasheet(65/96 Pages) TI

65 / 96 page

Serial Control I2C Register Summary

SLES123 − October 2004

TAS5504

I2C

SUBADDRESS

DEFAULT STATE

DESCRIPTION OF CONTENTS

TOTAL

BYTES

0x14

Automute control

Set auto-mute delay and threshold

1. Set auto-mute delay = 5 ms

2. Set auto-mute threshold less

than bit 8.

0x15

Automute PWM threshold and

backend reset period

Set PWM auto-mute threshold, set

backend reset period

1. Set the PWM threshold the same

as the TAS5504 input threshold.

2. Set the backend reset

period = 5 ms.

0x16

Modulation limit register

Set modulation index

97.7%

0x17−0x1A

RESERVED

0x1B–0x1C

1/Reg.

Inter-channel delay registers

Sets inter-channel delay for channels

1 and 2

Channel 1 delay = −23 DCLK

periods

Channel 2 delay = 0 DCLK periods

0x1D−0x20

RESERVED

0x21–0x22

1/Reg.

Inter-channel delay registers

Sets inter-channel delay for channels

3 and 4

Channel 3 delay = −8 DCLK

periods

Channel 4 delay = 24 DCLK

periods

0x23

Inter-channel offset

Absolute delay offset for channel 1

(0 – 255)

Minimum absolute default = 0

DCLK periods

0x24−0x3F

RESERVED

0x40

Bank switching command

Set up DAP coefficients bank

switching for banks 1, 2, and 3

Manual selection – Bank 1

0x41–0x42

32/Reg

See the Input Mixer Registers

(0x41 and 0x42, Channels 1

and 2) section

8X4 input crossbar mixer setup

SDIN1−Left to input mixer 1

SDIN1−Right to input mixer 2

0x43–0x46

RESERVED

0x47–0x48

32/Reg

See the Input Mixer Registers

(0x47 and 0x48, Channels 3

and 4) section

8X4 input crossbar mixer setup

SDIN4−Left to input mixer 3

SDIN4−Right to input mixer 4

0x49

ipmix_1_to_ch4

Input mixer 1 to Ch 4 mixer coefficient

0.0

0x4A

ipmix_2_to_ch4

Input mixer 2 to Ch 4 mixer coefficient

0.0

0x4B

ipmix_3_to_ch2

Input mixer 3 to Ch 2 mixer coefficient

0.0

0x4C

Ch3_bp_bq2

Bypass Ch 3 biquad 2 coefficient

0.0

0x4D

Ch3_bq2

Ch 3 biquad 2 coefficient

1.0

0x4E

ipmix_4_to_ch12

Ch 4 biquad 2 output to Ch1 mixer

and Ch2 mixer coefficient

0.0

0x4F

Ch4_bp_bq2

Bypass Ch 4 biquad 2 coefficient 0

0.0

0x50

Ch4_bq2

Ch 4 biquad 2 coefficient

1.0

0x51–0x5E

20/Reg. See the next section

Channels 1, 2, 3, and 4 biquad filter

coefficients

All biquads = All pass

0x89–0x8A

Bass and Treble Bypass

Ch 1 and 2

Bypass bass and treble for

channels 1 and 2

Bass and treble bypassed for

channels 1 and 2

0x8B−0x8E

RESERVED

0x8F−0x90

Bass and treble bypass Ch 3

and 4

Bypass bass and treble for channels 3

and 4

Bass and treble bypassed for

channels 3 and 4

0x91

Loudness Log2 LG

0.5

0x92

Loudness Log2 LO

0.0

0x93

Loudness G

0.0

0x94

Loudness O

0.0

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