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Preliminary
8-104
RF2475
Rev A2 010918
8
Mixer1 versus LO Amplitude
RX Mode, 882 MHz, VCC=2.8 V
4.0
5.0
6.0
7.0
8.0
9.0
10.0
-11.0
-10.0
-9.0
-8.0
-7.0
-6.0
-5.0
-4.0
-3.0
LO Amplitude (dBm)
9
10
11
12
13
14
15
Gain (dB)
IIP3 (dBm)
SSB NF (dB)
Mixer2 versus LO Amplitude
RX Mode, 1960 MHz, VCC=2.8 V
4.0
5.0
6.0
7.0
8.0
9.0
10.0
-11.0
-10.0
-9.0
-8.0
-7.0
-6.0
-5.0
-4.0
-3.0
LO Amplitude (dBm)
11
12
13
14
15
16
17
Gain (dB)
IIP3 (dBm)
SSB NF (dB)
LNA1 + Mixer1 Gain versus Frequency
RX Mode, Gain Select= High, VCC=2.8 V, LO PIN=-7 dBm
20.0
22.0
24.0
26.0
28.0
30.0
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 + Mixer1 Input IP3 versus Frequency
RX Mode, Gain Select=High, 882/883 MHz, -40 dBm per tone, VCC=2.8 V, LO PIN=-7
dBm
-14.0
-13.0
-12.0
-11.0
-10.0
-9.0
-8.0
-7.0
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
LNA1+Mixer1 Gain versus Supply Voltage
RX Mode, Gain Select=High, 882 MHz, LO PIN=-7 dBm
20.0
22.0
24.0
26.0
28.0
30.0
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
Supply Voltage (V)
+25°C Gain
-40°C Gain
+85°C Gain
LNA1 + Mixer1 SSB Noise Figure versus Frequency
RX Mode, Gain Select=High, VCC=2.8 V, LO PIN=-7 dBm
0.0
0.5
1.0
1.5
2.0
2.5
3.0
865.0
870.0
875.0
880.0
885.0
890.0
895.0
900.0
Frequency (MHz)
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