TAS5508B Datasheet, PDF (96/106 Pages) Texas Instruments – 8-Channel Digital Audio PWM Processor

TAS5508B
8-Channel Digital Audio PWM Processor
SLES162B – DECEMBER 2005 – REVISED APRIL 2006
Table 7-37. Channels 7, 2, and 1 (Center, Right Front, and Left Front)
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0 No change
0
0
0
0
0
0
0
1 Bass filter set 1
0
0
0
0
0
0
1
0 Bass filter set 2
0
0
0
0
0
0
1
1 Bass filter set 3
0
0
0
0
0
1
0
0 Bass filter set 4
0
0
0
0
0
1
0
1 Bass filter set 5
0
0
0
0
0
1
1
0 Reserved
0
0
0
0
0
1
1
1 Reserved
FUNCTION
www.ti.com
7.29 Bass Filter Index Register (0xDB)
Index values above 0x24 are invalid. To use the bass and treble function, the bass and treble bypass
registers (0x89–0x90) must be configured as inline (default is bypass).
Table 7-38. Bass Filter Index Register Format
I²C
SUBADDRESS
0xDB
TOTAL
BYTES
4
REGISTER
NAME
Bass filter index
(BFI)
DESCRIPTION OF CONTENTS
Ch8_BFI[31:24], Ch65_BFI[23:16], Ch43_BFI[15:8],
Ch721_BFI[7:0]
DEFAULT STATE
0x12, 0x12, 0x12, 0x12
BASS INDEX VALUE
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
Table 7-39. Bass Filter Indexes
ADJUSTMENT (dB)
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
BASS INDEX VALUE
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
0x20
0x21
0x22
0x23
0x24
ADJUSTMENT (dB)
–1
–2
–3
–4
–5
–6
–7
–8
–9
–10
–11
–12
–13
–14
–15
–16
–17
–18
96
Serial-Control Interface Register Definitions