303 S. Technology Court, Broomfield, CO 80021
Phone: (800) SMI-MMIC
http://www.sirenza.com
8
EDS-104229 Rev B
STQ-2016-3 Direct Quadrature Modulator
6
4
20
2
4
6
8
158
156
154
152
150
I/Q Drive = 1 Vpp, Diff.
I/Q Drive = 2 Vpp, Diff.
I/Q Drive = 3 Vpp, Diff.
I/Q Drive = 4 Vpp, Diff.
LO Drive Level (dBm)
50
25
0
25
50
75
100
15
14
13
12
11
I/Q Drive = 1.5 Vpp, Diff.
I/Q Drive = 1.7 Vpp, Diff.
I/Q Drive = 1.9 Vpp, Diff.
Temperature (Deg. C)
1
1.2
1.4
1.6
1.8
2
16
15
14
13
12
11
10
Temp. = -40 D eg. C
Temp. = +25 Deg. C
Temp. = +85 Deg. C
IQ Drive Level (Vpp, Diff.)
6
4
20
2
4
6
8
70
65
60
55
50
45
I/Q Drive = 1 V pp, Diff.
I/Q Drive = 2 V pp, Diff.
I/Q Drive = 3 V pp, Diff.
I/Q Drive = 4 V pp, Diff.
LO Drive L evel (d Bm)
1
1.522.5
33.5
4
70
65
60
55
50
45
LO D rive = -5 dBm
LO D rive = -2 dBm
LO D rive = -1 dBm
LO D rive = +4 dBm
LO D rive = +7 dBm
IQ Dr ive Level ( Vpp, D iff.)
21 00
21 20
21 40
21 60
21 80
70
65
60
55
50
45
I/Q Drive = 1 V pp, Diff.
I/Q Drive = 2 V pp, Diff.
I/Q Drive = 3 V pp, Diff.
I/Q Drive = 4 V pp, Diff.
LO Frequency (MH z)
1
1.5
22.533.5
4
70
65
60
55
50
45
LO Fre q. = 2110 MHz
LO Fre q. = 2140 MHz
LO Fre q. = 2170 MHz
IQ Drive Level (Vpp, Diff.)
Figure 19. Channel Power Vs. Temperature, LO
Drive = +4.0 dBm @ 2140 MHz.
Figure 20. Channel Power Vs. I/Q Drive Level, over
Temperature Range, LO Drive = +4.0 dBm @ 2140 MHz.
Adjacent Channel Power
Figure 23. Adjacent Channel Power Vs. LO Frequency, LO Drive
= +4.0 dBm.
Figure 24. Adjacent Channel Power Vs. I/Q Drive Level, over LO
Frequency Range, LO Drive = +4.0 dBm.
Figure 21. Adjacent Channel Power Vs. LO
Drive Level, LO Frequency = 2140 MHz.
Figure 22. Adjacent Channel Power Vs. I/Q Drive
Level, LO Frequency = 2140 MHz.
Typical Device Performance Graphs
Baseband Signal: W-CDMA Test Model 1 w/ 64 DPCH,
Peak-to-Average Ratio = 10.54