Z
Z
*
in
Ohms
OL
Ohms
V
= 7.5 V
V
P
= 12.5 V
V
= 7.5 V
V
= 12.5 V
CC
CC
CC
CC
f
P
out
P
out
P
out
= 806 MHz = 820 mW
= 870 MHz = 635 mW
= 960 MHz = 530 mW
P
P
P
= 806 MHz = 1.05 mW
= 870 MHz = 855 mW
= 960 MHz = 580 mW
out
out
out
Frequency
MHz
P
in
= 150 mW
= 100 mW
in
806
870
960
8.0 + j1.9
5.2 + j3.5
6.8 + j4.0
4.0 + j1.2
6.0 + j1.9
6.1 + j2.5
24.7 – j19.2
36.9 – j20.5
39.3 – j18.5
20.9 – j31.0
32.1 – j26.6
36.3 – j25.7
Z * = Conjugate of the optimum load impedance into which the device output operates at a given output power, voltage, and frequency.
OL
Table 1. Series Equivalent Input/Output Impedance
TYPICAL CHARACTERISTICS
800/900 MHz BAND DATA (continued)
1200
1000
V
= 12.5 Vdc
CC
900
P
= 150 mW
100 mW
in
7.5 Vdc
600
300
0
500
50 mW
0
800
0
15
30
45
60
75
90
105
120 135
150
820
840
860
880
900
920
940
960
P
, INPUT POWER (mW)
f, FREQUENCY (MHz)
in
Figure 3. Output Power versus Input Power
f = 870 MHz
Figure 4. Output Power versus Frequency
= 7.5 Vdc
V
CC
1200
900
600
300
0
1600
1200
P
= 150 mW
100 mW
in
P
= 150 mW
100 mW
in
800
400
0
50 mW
50 mW
V
= 12.5 Vdc
f = 870 MHz
14
CC
6
8
10
12
16
800
820
840
860
880
900
920
940
960
V
, COLLECTOR VOLTAGE (Vdc)
f, FREQUENCY (MHz)
CC
Figure 5. Output Power versus Collector Voltage
Figure 6. Output Power versus Frequency
MRF8372R1, R2
4
MOTOROLA RF DEVICE DATA
MOTOROLA [ MOTOROLA ]
