— µPC8108T —
RF FREQUENCY vs. NOISE FIGURE
20
VCC = 1.5 V
15
VCC = 1.0 V
10
5
PLoin = –21 dBm
fIF = 20 MHz
Upper local
0
0.1
0.3
0.5
1
RF input frequency fRFin (GHz)
µPC8103T, µPC8108T
RF FREQUENCY vs. NOISE FIGURE
20
15
VCC = 1.5 V
10
VCC = 1.0 V
VCC = 1.0 V
5
PLoin = –10 dBm
fIF = 20 MHz
Upper local
0
0.1
0.3
VCC = 1.5 V
0.5
1
RF input frequency fRFin (GHz)
RF input level vs. IF output level and IM3
+10
VCC = 1.0 V
fLoin = 170 MHz
PLoin = –21 dBm
0 fRFin (des) = 150.000 MHz
fRFin (undes) = 150.025 MHz
TEST CIRCUIT 1
–10
IFout
–20
–30
–40
IM3
–50
–60
–50
–40
–30
–20
–10
RF input level PRFin (dBm)
RF input level vs. IF output level and IM3
+10
VCC = 1.0 V
fLoin = 300 MHz
PLoin = –21 dBm
0 fRFin (des) = 280.000 MHz
fRFin (undes) = 280.025 MHz
TEST CIRCUIT 1
–10
IFout
–20
–30
–40
IM3
–50
–60
–50
–40
–30
–20
–10
RF input level PRFin (dBm)
19