
SLAS548C
– OCTOBER 2008 – REVISED APRIL 2011
Table 9. ADC FIR Filter Coefficients
Filter Coefficient
ADC Coefficient Left Channel
ADC Coefficient Right Channel
Fir0
C7 (page 4 / register 14 and page 4 / register 15)
C39 (page 4 / register 78 and page 4 / register 79)
Fir1
C8 (page 4 / register 16 and page 4 / register 17)
C40 (page 4 / register 80 and page 4 / register 81)
Fir2
C9 (page 4 / register 18 and page 4 / register 19)
C41 (page 4 / register 82 and page 4 / register 83)
Fir3
C10 (page 4 / register 20 and page 4 / register 21)
C42 (page 4 / register 84 and page 4 / register 85)
Fir4
C11 (page 4 / register 22 and page 4 / register 23)
C43 (page 4 / register 86 and page 4 / register 87)
Fir5
C12 (page 4 / register 24 and page 4 / register 25)
C44 (page 4 / register 88 and page 4 / register 89)
Fir6
C13 (page 4 / register 26 and page 4 / register 27)
C45 (page 4 / register 90 and page 4 / register 91)
Fir7
C14 (page 4 / register 28 and page 4 / register 29)
C46 (page 4 / register 92 and page 4 / register 93)
Fir8
C15 (page 4 / register 30 and page 4 / register 31)
C47 (page 4 / register 94 and page 4 / register 95)
Fir9
C16 (page 4 / register 32 and page 4 / register 33)
C48 (page 4 / register 96 and page 4 / register 97)
Fir10
C17 (page 4 / register 34 and page 4 / register 35)
C49 (page 4 / register 98 and page 4 / register 99)
Fir11
C18 (page 4 / register 36 and page 4 / register 37)
C50 (page 4 / register 100 and page 4 / register 101)
Fir12
C19 (page 4 / register 38 and page 4 / register 39)
C51 (page 4 / register 102 and page 4 / register 103)
Fir13
C20 (page 4 / register 40 and page 4 / register 41)
C52 (page 4 / register 104 and page 4 / register 105)
Fir14
C21 (page 4 / register 42 and page 4 / register 43)
C53 (page 4 / register 106 and page 4 / register 107)
Fir15
C22 (page 4 / register 44 and page 4 / register 45)
C54 (page 4 / register 108 and page 4 / register 109)
Fir16
C23 (page 4 / register 46 and page 4 / register 47)
C55 (page 4 / register 110 and page 4 / register 111)
Fir17
C24 (page 4 / register 48 and page 4 / register 49)
C56 (page 4 / register 112 and page 4 / register113)
Fir18
C25 (page 4 / register 50 and page 4 / register 51)
C57 (page 4 / register 114 and page 4 / register 115)
Fir19
C26 (page 4 / register 52 and page 4 / register 53)
C58 (page 4 / register 116 and page 4 / register 117)
Fir20
C27 (page 4 / register 54 and page 4 / register 55)
C59 (page 4 / register 118 and page 4 / register 119)
Fir21
C28 (page 4 / register 56 and page 4 / register 57)
C60 (page 4 / register 120 and page 4 / register 121)
Fir22
C29 (page 4 / register 58 and page 4 / register 59)
C61 (page 4 / register 122 and page 4 / register 123)
Fir23
C30 (page 4 / register 60 and page 4 / register 61)
C62 (page 4 / register 124 and page 4 / register 125)
Fir24
C31 (page 4 / register 62 and page 4 / register 63)
C63 (page 4 / register 126 and page 4 / register 127)
Decimation Filter
The TLV320ADC3001 offers three different types of decimation filters. The integrated digital decimation filter
removes high-frequency content and downsamples the audio data from an initial sampling rate of AOSR
× fS to
the final output sampling rate of fS. The decimation filtering is achieved using a higher-order CIC filter followed by
linear-phase FIR filters. The decimation filter cannot be chosen by itself, it is implicitly set through the chosen
processing block.
The following subsections describe the properties of the available filters A, B, and C.
Copyright
2008–2011, Texas Instruments Incorporated
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