cs5378 Cirrus Logic, Inc., cs5378 Datasheet - Page 43

• Manufacturer Part Number: cs5378
• Description: Low-power Single-channel Decimation Filter
• Manufacturer: Cirrus Logic, Inc.

DS639F1
Filter Type
SINC3 (Stage 1)
SINC3 (Stage 2)
SINC3 (Stage 3)
4
17 coefficients
SINC3 (Stage 4)
5
21 coefficients
SINC3 (Stage 5)
5
6 coefficients
SINC3 (Stage 6)
6
13 coefficients
SINC3 (Stage 7)
6
7 coefficients
th
th
th
th
th
order decimate by 5
order decimate by 2
order decimate by 3
order decimate by 2
order decimate by 5
Table 13. SINC3 Filter Coefficients
System Function
H
H
H
H
H
(
(
(
(
(
z
z
z
z
z
)
)
)
)
)
=
=
=
=
=
⎛
⎜ ⎜
⎝
⎛
⎜ ⎜
⎝
⎛
⎜ ⎜
⎝
⎛
⎜ ⎜
⎝
⎛
⎜ ⎜
⎝
1
1
1
1
1
1
1
1
1
1
−
−
−
−
−
−
−
−
−
−
z
z
z
z
z
z
z
z
z
z
−
−
−
−
−
−
−
−
−
−
5
1
5
1
2
1
3
1
2
1
⎞
⎟ ⎟
⎠
⎞
⎟ ⎟
⎠
⎞
⎟ ⎟
⎠
⎞
⎟ ⎟
⎠
⎞
⎟ ⎟
⎠
5
6
4
5
6
Filter Coefficients
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
0
1
2
3
4
5
6
0
1
2
3
4
5
6
= 185
= 255
= 320
= 365
= 1
= 4
= 10
= 20
= 35
= 52
= 68
= 80
= 85
= 1
= 5
= 15
= 35
= 70
= 121
= 1
= 5
= 10
= 10
= 5
= 1
= 1
= 6
= 15
= 20
= 15
= 6
= 1
= 381
= 1
= 6
= 21
= 50
= 90
= 126
= 141
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
h
17
18
19
20
9
10
11
12
13
14
15
16
11
12
13
14
15
16
7
8
9
10
11
12
= 35
= 15
= 5
= 1
= 80
= 68
= 52
= 35
= 20
= 10
= 4
= 1
= 365
= 320
= 255
= 185
= 121
= 70
= 126
= 90
= 50
= 21
= 6
= 1
CS5378
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