![](http://datasheet.mmic.net.cn/300000/RF2938TR13_datasheet_16204752/RF2938TR13_16.png)
2-16
RF2938
Rev A9 020122
11
T
RF Conversion Gain versus VGC
(V
CC
=2.7V, Tx IF in=280Mhz-50dBm, RF LO=2160MHz@-10dBm)
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
21.0
22.0
23.0
24.0
25.0
26.0
27.0
28.0
29.0
30.0
31.0
0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5
VGC (VDC)
G
25C Gain
85C Gain
-40C
RF Conversion Gain versus VGC
(V
CC
=3.15V, Tx IF in=280MHz@-50dBm, RF LO=2160MHz @-10dBm)
7.0
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
21.0
22.0
23.0
24.0
25.0
26.0
27.0
28.0
29.0
30.0
31.0
32.0
0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5
VGC (VDC)
G
25C Gain
85C Gain
-40C Gain
RF Conversion Gain versus VGC
(V
CC
=3.6V, Tx IF in=280MHz@-50dBm, RF LO=2160MHz@-10dBm)
8.0
9.0
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
21.0
22.0
23.0
24.0
25.0
26.0
27.0
28.0
29.0
30.0
31.0
32.0
0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5
VGC (VDC)
G
25C Gain
85C Gain
-40C Gain
IF-RF IIP3 versus VGC
(V
CC
=2.7V, Tx IF in=12dB Below IP1dB, RF LO=2160MHz@-10dBm)
-23.0
-22.0
-21.0
-20.0
-19.0
-18.0
-17.0
-16.0
-15.0
-14.0
-13.0
-12.0
-11.0
-10.0
-9.0
-8.0
-7.0
0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5
VGC (VDC)
I
25C IIP3
85C IIP3
-40C IIP3
IF-RF IIP3 versus VGC
(V
CC
=3.15V, Tx IF in=12dB Below IP1dB, RF LO=2160MHz@-10dBm)
-24.0
-23.0
-22.0
-21.0
-20.0
-19.0
-18.0
-17.0
-16.0
-15.0
-14.0
-13.0
-12.0
-11.0
-10.0
-9.0
-8.0
-7.0
0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5
VGC (VDC)
I
25C IIP3
85C IIP3
-40C IIP3
IF-RF IIP3 versus VGC
(V
CC
=3.6V, Tx IF in=12dB Below IP1dB, RF LO=2160MHz@-10dBm)
-25.0
-24.0
-23.0
-22.0
-21.0
-20.0
-19.0
-18.0
-17.0
-16.0
-15.0
-14.0
-13.0
-12.0
-11.0
-10.0
-9.0
-8.0
-7.0
0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5
VGC (VDC)
I
25C IIP3
85C IIP3
-40C IIP3