TLV320AIC3111_101 Datasheet, PDF (34/154 Pages) Texas Instruments – Low-Power Audio Codec With Embedded miniDSP and Stereo Class-D Speaker Amplifier

TLV320AIC3111
SLAS644B – JULY 2009 – REVISED OCTOBER 2009
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Filter
Biquad B
Biquad C
Biquad D
Biquad E
Table 5-18. ADC Biquad Filter Coefficients (continued)
Filter Coefficient
N0
N1
N2
D1
D2
N0
N1
N2
D1
D2
N0
N1
N2
D1
D2
N0
N1
N2
D1
D2
Filter Coefficient RAM Location
Page 4 / register 24 and page 4 /
register 25
Page 4 / register 26 and page 4 /
register 27
Page 4 / register 28 and page 4 /
register 29
Page 4 / register 30 and page 4 /
register 31
Page 4 / register 32 and page 4 /
register 33
Page 4 / register 34 and page 4 /
register 35
Page 4 / register 36 and page 4 /
register 37
Page 4 / register 38 and page 4 /
register 39
Page 4 / register 40 and page 4 /
register 41
Page 4 / register 42 and page 4 /
register 43
Page 4 / register 44 and page 4 /
register 45
Page 4 / register 46 and page 4 /
register 47
Page 4 / register 48 and page 4 /
register 49
Page 4 / register 50 and page 4 /
register 51
Page 4 / register 52 and page 4 /
register 53
Page 4 / register 54 and page 4 /
register 55
Page 4 / register 56 and page 4 /
register 57
Page 4 / register 58 and page 4 /
register 59
Page 4 / register 60 and page 4 /
register 61
Page 4 / register 62 and page 4 /
register 63
Default (Reset) Values
0x7FFF (decimal 1.0 – LSB value)
0x0000
0x0000
0x0000
0x0000
0x7FFF (decimal 1.0 – LSB value)
0x0000
0x0000
0x0000
0x0000
0x7FFF (decimal 1.0 – LSB value)
0x0000
0x0000
0x0000
0x0000
0x7FFF (decimal 1.0 – LSB value)
0x0000
0x0000
0x0000
0x0000
5.5.4.3.3 FIR Section
Three of the available ADC processing blocks offer FIR filters for signal processing. Processing block
PRB_R12 features a 20-tap FIR filter, whereas the processing blocks PRB_R6 and PRB_R18 each
feature a 25-tap FIR filter.
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APPLICATION INFORMATION
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