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Preliminary
8-136
RF2488
Rev A0 010905
8
LNA1 Gain versus Frequency
Gain Select=High, VCC=3 V
15.0
16.0
17.0
18.0
19.0
20.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
+25°C Gain
-40°C Gain
+85°C Gain
LNA1 Gain versus Supply Voltage
Gain Select=High, 880 MHz
15.0
16.0
17.0
18.0
19.0
20.0
2.62.7
2.82.9
3.03.1
3.23.3
3.4
Supply Voltage (V)
+25°C Gain
-40°C Gain
+85°C Gain
LNA1 Input IP3 versus Supply Voltage
Gain Select=High, 880/881 MHz, -25 dBm per tone
0.0
1.0
2.0
3.0
4.0
5.0
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
Supply Voltage (V)
+25°C IIP3
-40°C IIP3
+85°C IIP3
LNA1 Noise Figure versus Frequency
Gain Select=High, VCC=3 V
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
+25°C Noise Figure
-40°C Noise Figure
+85°C Noise Figure
LNA1 Noise Figure versus Supply Voltage
Gain Select=High, 880 MHz
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
Supply Voltage (V)
+25°C Noise Figure
-40°C Noise Figure
+85°C Noise Figure
LNA1 Input IP3 versus Frequency
Gain Select=High, -25 dBm per tone, 1 MHz Separation, VCC=3 V
0.0
1.0
2.0
3.0
4.0
5.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
+25°C IIP3
-40°C IIP3
+85°C IIP3
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