AD9876 Просмотр технического описания (PDF) - Analog Devices

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AD9876

Broadband Modem Mixed-Signal Front End

Analog Devices 

AD9876

Typical Tx Digital Filter Performance Characteristics

40

38

36

34

32

30

28

26

24

22

20

64

80

96 112 128 144 160 176 192

18

17

16

15

14

13

12

11

10

9

8

48 64 80 96 112 128 144 160 176 192

TPC 17. Rx vs. Tuning Target, fADC = 32 MHz,

LPF with Wideband Rx LPF = 1

TPC 19. fC vs. Tuning Target, fADC = 32 MHz,

LPF with Wideband Rx LPF = 0

0.60

0.40

0.20

0.00

–0.20

–0.40

–0.60

–0.80

–6 –4 –2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36

VGA GAIN – dB

TPC 18. PGA Gain Error vs. Gain

2.5

2.4

2.3

2.2

2.1

2.0

1.9

1.8

1.7

1.6

1.5

–6 –4 –2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36

VGA GAIN – dB

TPC 20. PGA Gain Step Size vs. Gain

REV. A

–11–

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