CS5376A(2004) 데이터 시트보기 (PDF) - Cirrus Logic

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CS5376A
(Rev.:2004)

Low Power Multi-Channel Decimation Filter

Cirrus Logic 

CS5376A

Filter Type

SINC3 (Stage 1)

SINC3 (Stage 2)

SINC3 (Stage 3)

4th order decimate by 5

17 coefficients

SINC3 (Stage 4)

5th order decimate by 2

6 coefficients

SINC3 (Stage 5)

6th order decimate by 2

7 coefficients

SINC3 (Stage 6)

6th order decimate by 3

13 coefficients

System Function

H

(z)

=

⎛1−

⎜⎜

⎝

1

−

z −5

z −1

4

⎞

⎟⎟

⎠

H (z)

=

⎛1−

⎜⎜

⎝

1

−

z −2

z −1

5

⎞

⎟⎟

⎠

H (z)

=

⎛1−

⎜⎜

⎝

1

−

z −2

z −1

6

⎞

⎟⎟

⎠

H

(z)

=

⎛1−

⎜⎜

⎝

1

−

z −3

z −1

6

⎞

⎟⎟

⎠

Filter Coefficients

h0 = 1

h1 = 4

h2 = 10

h3 = 20

h4 = 35

h5 = 52

h6 = 68

h7 = 80

h8 = 85

h9 = 80

h10 = 68

h11 = 52

h12 = 35

h13 = 20

h14 = 10

h15 = 4

h16 = 1

h0 = 1

h1 = 5

h2 = 10

h3 = 10

h4 = 5

h5 = 1

h0 = 1

h1 = 6

h2 = 15

h3 = 20

h4 = 15

h5 = 6

h6 = 1

h0 = 1

h1 = 6

h2 = 21

h3 = 50

h4 = 90

h5 = 126

h6 = 141

h7 = 126

h8 = 90

h9 = 50

h10 = 21

h11 = 6

h12 = 1

Table 11. SINC3 Filter Coefficients

46

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