TAS5508B
8-Channel Digital Audio PWM Processor
www.ti.com
SLES162C – DECEMBER 2005 – REVISED JULY 2009
TOTAL
I2C
REGISTER FIELDS
DESCRIPTION OF CONTENTS
DEFAULT STATE
BYTES
SUBADDRESS
DRC bypass 1
Ch1 DRC1 bypass coefficient
1.0
0xA2
8
DRC inline 1
Ch1 DRC1 inline coefficient
0.0
DRC bypass 2
Ch2 DRC1 bypass coefficient
1.0
0xA3
8
DRC inline 2
Ch2 DRC1 inline coefficient
0.0
DRC bypass 3
Ch3 DRC1 bypass coefficient
1.0
0xA4
8
DRC inline 3
Ch3 DRC1 inline coefficient
0.0
DRC bypass 4
Ch4 DRC1 bypass coefficient
1.0
0xA5
8
DRC inline 4
Ch4 DRC1 inline coefficient
0.0
DRC bypass 5
Ch5 DRC1 bypass coefficient
1.0
0xA6
8
DRC inline 5
Ch5 DRC1 inline coefficient
0.0
DRC bypass 6
Ch6 DRC1 bypass coefficient
1.0
0xA7
8
DRC inline 6
Ch6 DRC1 inline coefficient
0.0
DRC bypass 7
Ch7 DRC1 bypass coefficient
1.0
0xA8
8
DRC inline 7
Ch7 DRC1 inline coefficient
0.0
DRC bypass 8
Ch8 DRC2 bypass coefficient
1.0
0xA9
8
DRC inline 8
Ch8 DRC2 inline coefficient
0.0
0xAA
8
sel op1–8 and mix to PWM1
Select 0 to 2 of eight channels to
Mix channels to PWM1.
output mixer 1
0xAB
8
sel op1–8 and mix to PWM2
Select 0 to 2 of eight channels to
Mix channels to PWM2.
output mixer 2
0xAC
8
sel op1–8 and mix to PWM3
Select 0 to 2 of eight channels to
Mix channels to PWM3.
output mixer 3
0xAD
8
sel op1–8 and mix to PWM4
Select 0 to 2 of eight channels to
Mix channels to PWM4.
output mixer 4
0xAE
8
sel op1–8 and mix to PWM5
Select 0 to 2 of eight channels to
Mix channels to PWM5.
output mixer 5
0xAF
8
sel op1–8 and mix to PWM6
Select 0 to 2 of eight channels to
Mix channels to PWM6.
output mixer 6
0xB0
12
sel op1–8 and mix to PWM7
Select 0 to 3 of eight channels to
Mix channels to PWM7.
output mixer 7
0xB1
12
sel op1–8 and mix to PWM8
Select 0 to 3 of eight channels to
Mix channels to PWM8.
output mixer 8
0xB2–0xCE
Reserved
0xCF
20
Volume biquad
All pass
0xD0
4
Volume, treble, and bass
u [31:24], u [23:16], u [15:12]
0x00, 0x00, 0x01, 0x3F
slew rates register
VSR[11:8], TBSR[7:0]
0xD1
4
Ch1 volume
0 dB
0xD2
4
Ch2 volume
0 dB
0xD3
4
Ch3 volume
0 dB
0xD4
4
Ch4 volume
0 dB
0xD5
4
Ch5 volume
0 dB
0xD6
4
Ch6 volume
0 dB
0xD7
4
Ch7 volume
0 dB
0xD8
4
Ch8 volume
0 dB
0xD9
4
Master volume
Mute
0xDA
4
Bass filter set register
Bass filter set (all channels)
Filter set 3
0xDB
4
Bass filter index register
Bass filter level (all channels)
0 dB
0xDC
4
Treble filter set register
Treble filter set (all channels)
Filter set 3
0xDD
4
Treble filter index register
Treble filter level (all channels)
0 dB
0xDE
4
AM mode register
Set up AM mode for AM-interference
AM mode disabled
reduction
Select sequence 1
IF frequency = 455 kHz
Use BCD-tuned frequency
0xDF
4
PSVC range register
Set PSVC control range
12-dB control range
0xE0
4
General control register
6- or 8-channel configuration, PSVC
8-channel configuration
enable
Power-supply volume control disabled
69
Serial-Control I2C Register Summary