AD8341 Datasheet, PDF (8/20 Pages) Analog Devices – 1.5 GHz to 2.4 GHz RF Vector Modulator

AD8341
25
–40°C
20
+25°C
15
+85°C
10
5
0
1500 1600 1700 1800 1900 2000 2100 2200 2300 2400
FREQUENCY (MHz)
Figure 15. Output IP3 vs. Frequency and Temperature,
Maximum Gain, Phase Setpoint = 0°, 2.5 MHz Carrier Spacing
–10
1V p-p BB INPUT
–15
500mV p-p BB INPUT
–20
–25
250mV p-p BB INPUT
–30
–35
10
60 110 160 210 260 310 360 410
FREQUENCY (MHz)
Figure 16. I/Q Modulation Bandwidth vs. Baseband Magnitude
10
GAIN SETPOINT = 1.0
5
GAIN SETPOINT = 0.5
0
GAIN SETPOINT = 0.25
–5
–10
GAIN SETPOINT = 0.1
–15
0
45
90 135 180 225 270 315 360
PHASE SETPOINT (Degrees)
Figure 17. Output 1 dB Compression Point vs. Gain and
Phase Setpoints, RF Frequency = 1900 MHz
20
GAIN SETPOINT = 1.0
15
GAIN SETPOINT = 0.5
10
GAIN SETPOINT = 0.25
5
0
GAIN SETPOINT = 0.1
–5
–10
0
45
90 135 180 225 270 315 360
PHASE SETPOINT (Degrees)
Figure 18. Output IP3 vs. Gain and Phase Setpoints,
RF Frequency = 1900 MHz, 2.5 MHz Carrier Spacing
REF LVL
0dBm
0
–10
RBW 30kHz RF ATT
VBW 30kHz
SWT 100ms UNIT
20dB
dBm
A
–20
–30
1SA
–40
–50
–60
–70
–80
–90
–100
CENTER 1.9GHz
500kHz/
FREQUENCY (MHz)
SPAN 5MHz
Figure 19. Single-Sideband Performance, RF Frequency = 1900 MHz,
RF Input = −10 dBm; 1 MHz, 500 mV p-p Differential BB Drive
90
120
60
150
30
180
0
1500MHz
210
2400MHz
330
240
300
270
S11 RF PORT WITH 1.2nH INDUCTORS
S11 RF PORT WITHOUT INDUCTORS
Figure 20. Input Impedance Smith Chart
Rev. 0 | Page 8 of 20