AD9875
Typical AC Characterization Curves for Rx Path
40
38
36
34
32
30
28
26
24
22
20
64
80
96 112 128 144 160 176 192
TPC 17. Rx vs. Tuning Target, fADC = 32 MHz, LPF with
Wideband Rx LPF = 1
18
17
16
15
14
13
12
11
10
9
8
48 64 80 96 112 128 144 160 176 192
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. 0
–11–