AD9775EB datasheet(8/48 Pages) AD

8 / 48 page

REV. 0

AD9775

–8–

DIGITAL FILTER SPECIFICATIONS

Half-Band Filter No. 1 (43 Coefficients)

Tap

Coefficient

1, 43

2, 42

3, 41

–29

4, 40

5, 39

6, 38

7, 37

–134

8, 36

9, 35

244

10, 34

11, 33

–414

12, 32

13, 31

673

14, 30

15, 29

–1079

16, 28

17, 27

1772

18, 26

19, 25

–3280

20, 24

21, 23

10364

16384

Half-Band Filter No. 2 (19 Coefficients)

Tap

Coefficient

1, 19

2, 18

3, 17

–120

4, 16

5, 15

438

6, 14

7, 13

–1288

8, 12

9, 11

5047

8192

Half-Band Filter No. 3 (11 Coefficients)

Tap

Coefficient

1, 11

2, 10

3, 9

–53

4, 8

5, 7

302

512

fOUT – Normalized to Input Data Rate

–120

0.5

–100

–80

–60

–40

–20

1.0

1.5

2.0

Figure 1a. 2

Interpolating Filter Response

fOUT – Normalized to Input Data Rate

–120

0.5

–100

–80

–60

–40

–20

1.0

1.5

2.0

Figure 1b. 4

Interpolating Filter Response

fOUT – Normalized to Input Data Rate

–120

–100

–80

–60

–40

–20

Figure 1c. 8

Interpolating Filter Response

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