Datasheet

AD8368
Rev. B | Page 9 of 20
50
40
45
0
5
10
15
20
25
30
35
10 100 1000
NOISE FIGURE (dB)
FREQUENCY (MHz)
05907-015
Figure 15. Noise Figure vs. Frequency at Maximum Gain (V
MODE
= 0 V)
50
45
40
35
30
25
20
15
10
5
0
010.80.60.40.2
NOISE FIGURE (dB)
V
GAIN
(V)
05907-016
.0
70MHz
140MHz
240MHz
380MHz
Figure 16. Noise Figure vs. V
GAIN
(V
MODE
= 0 V)
0
–40
–35
–30
–25
–20
–15
–10
–5
10 100 1000
INPUT RETURN LOSS (dB)
FREQUENCY (MHz)
05907-017
V
GAIN
= 0.5V
V
GAIN
= 0V
V
GAIN
= 0.25V
V
GAIN
= 0.75V
V
GAIN
= 1V
Figure 17. Input Return Loss vs. Frequency
05907-018
V
GAIN
= 1V
V
GAIN
= 0.75V
V
GAIN
= 0.5V
V
GAIN
= 0.25V
V
GAIN
= 0V
Figure 18. Input Reflection Coefficient vs. Frequency
0
–40
–35
–30
–25
–20
–15
–10
–5
10 100 1000
OUTPUT RETURN LOSS (dB)
FREQUENCY (MHz)
05907-019
V
GAIN
= 1V
V
GAIN
= 0V
Figure 19. Output Return Loss vs. Frequency
05907-020
V
GAIN
= 1V
V
GAIN
= 0V
Figure 20. Output Reflection Coefficient vs. Frequency