MC3371 Datasheet, PDF (15/20 Pages) Motorola, Inc – LOW POWER FM IF

MC3371 MC3372
Figure 16. S + N, N, AMR versus Input
10
0
S+N
–10
fRF = 10.7 MHz
–20
VCC = 4.0 V
TA = 25°C
–30
–40
S + N 30% AM
–50
N
–60
–130 –110
–90
–70
–50
–30
–10
RF INPUT (dBm)
* Reference Figures 11, 12 and 13
Figure 17. Mixer Input Impedance versus Frequency
+j50
+j25
+j100
+j10
VCC = 4.0 Vdc
RF Input = –40 dBm
10
25
0
–j10
+j150
+j250
+j500
50
100 150 250 500
45 MHz 10.7 MHz
–j500
–j250
–j150
–j25
–j50
–j100
MOTOROLA ANALOG IC DEVICE DATA
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