mrf9045n Freescale Semiconductor, Inc, mrf9045n Datasheet - Page 5

• Manufacturer Part Number: mrf9045n
• Description: Rf Power Field Effect Transistors
• Manufacturer: Freescale Semiconductor, Inc

RF Device Data
Freescale Semiconductor
−10
−20
−30
−40
−50
−60
−70
−80
20.5
19.5
18.5
17.5
21
20
19
18
17
0.1
Figure 8. Intermodulation Distortion Products
Figure 6. Power Gain versus Output Power
V
I
f1 = 945 MHz
f2 = 945.1 MHz
DQ
DD
= 350 mA
= 28 Vdc
I
DQ
420 mA
350 mA
280 mA
= 525 mA
P
1
P
out
out
7th Order
versus Output Power
, OUTPUT POWER (WATTS) PEP
, OUTPUT POWER (WATTS) PEP
1
20
19
18
17
16
15
14
13
12
10
930
3rd Order
5th Order
V
P
I
10
DQ
DD
out
= 350 mA
Figure 5. Class AB Broadband Circuit
= 28 Vdc
= 45 W (PEP)
V
f1 = 945 MHz
f2 = 945.1 MHz
DD
TYPICAL CHARACTERISTICS
935
= 28 Vdc
940
100
f, Frequency (MHz)
Performance
100
Two−Tone Measurement
100 kHz Tone Spacing
945
22
20
18
16
14
12
10
0.1
−15
−20
−25
−30
−35
−40
−45
−50
−55
Figure 9. Power Gain and Efficiency versus
950
0.1
V
f1 = 945 MHz,
f2 = 945.1 MHz
DD
Figure 7. Intermodulation Distortion versus
= 28 Vdc
P
955
out
G
η
, OUTPUT POWER (WATTS) AVG.
ps
P
IMD
G
IRL
η
out
ps
1
Output Power
, OUTPUT POWER (WATTS) PEP
960
1
50
45
40
35
−30
−32
−34
−36
−38
Output Power
I
DQ
= 280 mA
MRF9045NR1 MRF9045NBR1
350 mA
10
−10
−12
−14
−16
−18
420 mA
V
I
f = 945 MHz
DQ
10
DD
= 350 mA
= 28 Vdc
525 mA
100
60
50
40
30
20
10
0
100
5