Analog Devices AD6122 Manual page 10

AD6122
40
20
VGAIN = 2.0V
0
–20
–40
VGAIN = 1.0V
–60
–80
50 100 150
FREQUENCY – MHz
Figure 18. IF Amplifier Gain vs. Frequency for
VGAIN = 2.5 V, 2.0 V, 1.5 V, 1.0 V
VGAIN = 2.5V
VGAIN = 1.5V
VGAIN = 0.5V
200 250 300 350
REF LEV
–30dBm
–30
–40
–50
–60
–70
–80
–90
–100
CL1
–110
–120
–130
CENTER 130.38MHz
Figure 20. ACPR of Cascaded Modulator, 20 dB Pad and IF
Amplifier: Spectral Plot
18.0
16.0
14.0
12.0
10.0
8.0
0.5
Figure 19. Total Current Consumption vs. VGAIN
RBW 30kHz
VBW 300kHz
SWT 2s
UNIT dBm
1 (T1) –46.78dBm
130.38000000MHz
1
–31.93dBm
CH PWR
1
–66.95dB
ACP UP
–68.95dB
AVE LOW
–0.28 dB
1 (T1)
330.66132265kHz
CO CU1
CO
600kHz/DIV SPAN 6MHz
–10–
1.0 1.5 2.0
VGAIN – V
A
2.5
REV. B