303 S. Technology Court, Broomfield, CO 80021
Phone: (800) SMI-MMIC
http://www.sirenza.com
7
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)
6
4
20
2
4
6
8
18
16
14
12
10
8
6
4
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
1.522.533.5
4
18
16
14
12
10
8
6
4
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 Drive Level (Vpp, D iff.)
21 00
21 20
21 40
21 60
21 80
18
16
14
12
10
8
6
4
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
18
16
14
12
10
8
6
4
LO Fre q. = 2110 M Hz
LO Fre q. = 2140 M Hz
LO Fre q. = 2170 M Hz
IQ Drive Level (Vpp, Diff.)
4.7
4.8
4.9
5
5.1
5.2
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.
Vcc (Vdc)
1.4
1.5
1.6
1.7
1.8
1.9
15
14
13
12
11
Vcc = 4.75 V
Vcc = 5.00 V
Vcc = 5.25 V
IQ Drive Level (Vpp, Diff.)
Figure 13. Channel Power Vs. LO Drive
Level, LO Frequency = 2140 MHz.
Figure 14. Channel Power Vs. I/Q Drive
Level, LO Frequency = 2140 MHz.
Figure 15. Channel Power Vs. LO
Frequency, LO Drive = +4.0 dBm.
Figure 16. Channel Power Vs. I/Q Drive Level, over
LO Frequency Range,LO Drive = +4.0 dBm.
Figure 17. Channel Power Vs. Vcc, LO Drive = +4.0 dBm @
2140 MHz.
Figure 18. Channel Power Vs. I/Q Drive Level, over Vcc Range,
LO Drive = +4.0 dBm @ 2140 MHz.
Channel Power
Typical Device Performance Graphs
Baseband Signal: W-CDMA Test Model 1 w/ 64 DPCH,
Peak-to-Average Ratio = 10.54