Datasheet

1 2
0 1 2
15 1 2
1 2
N 2 N z N z
H(z)
2 2 D z D z
- -
- -
+ ´ +
=
- ´ -
TLV320AIC3100
SLAS667A –NOVEMBER 2009–REVISED MAY 2012 www.ti.com
Table 5-27. DAC IIR Filter Coefficients
Filter Coefficient Left DAC Channel Right DAC Channel Default (Reset) Value
First-order IIR N0 Page 9 / register 2 and Page 9 / register 8 and 0x7FFF (decimal 1.0 –
page 9 / register 3 page 9 / register 9 LSB value)
N1 Page 9 / register 4 and Page 9 / register 10 and 0x0000
page 9 / register 5 page 9 / register 11
D1 Page 9 / register 6 and Page 9 / register 12 and 0x0000
page 9 / register 7 page 9 / register 13
5.5.1.3.2 Biquad Section
The transfer function of each of the biquad filters is given by
(5)
Table 5-28. DAC Biquad Filter Coefficients
Filter Coefficient Left DAC Channel Right DAC Channel Default (Reset) Value
Biquad A N0 Page 8 / register 2 and Page 8 / register 66 and 0x7FFF (decimal 1.0 –
page 8 / register 3 page 8 / register 67 LSB value)
N1 Page 8 / register 4 and Page 8 / register 68 and 0x0000
page 8 / register 5 page 8 / register 69
N2 Page 8 / register 6 and Page 8 / register 70 and 0x0000
page 8 / register 7 page 8 / register 71
D1 Page 8 / register 8 and Page 8 / register 72 and 0x0000
page 8 / register 9 page 8 / register 73
D2 Page 8 / register 10 and Page 8 / register 74 and 0x0000
page 8 / register 11 page 8 / register 75
Biquad B N0 Page 8 / register 12 and Page 8 / register 76 and 0x7FFF (decimal 1.0 –
page 8 / register 13 page 8 / register 77 LSB value)
N1 Page 8 / register 14 and Page 8 / register 78 and 0x0000
page 8 / register 15 page 8 / register 79
N2 Page 8 / register 16 and Page 8 / register 80 and 0x0000
page 8 / register 17 page 8 / register 81
D1 Page 8 / register 18 and Page 8 / register 82 and 0x0000
page 8 / register 19 page 8 / register 83
D2 Page 8 / register 20 and Page 8 / register 84 and 0x0000
page 8 / register 21 page 8 / register 85
Biquad C N0 Page 8 / register 22 and Page 8 / register 86 and 0x7FFF (decimal 1.0 –
page 8 / register 23 page 8 / register 87 LSB value)
N1 Page 8 / register 24 and Page 8 / register 88 and 0x0000
page 8 / register 25 page 8 / register 89
N2 Page 8 / register 26 and Page 8 / register 90 and 0x0000
page 8 / register 27 page 8 / register 91
D1 Page 8 / register 28 and Page 8 / register 92 and 0x0000
page 8 / register 29 page 8 / register 93
D2 Page 8 / register 30 and Page 8 / register 94 and 0x0000
page 8 / register 31 page 8 / register 95
50 APPLICATION INFORMATION Copyright © 2009–2012, Texas Instruments Incorporated
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