6
RF Device Data
Freescale Semiconductor
MRF7S21080HR3 MRF7S21080HSR3
TYPICAL CHARACTERISTICS
-- 2 0
-- 8
-- 1 2
-- 1 6
-- 4
G
ps
, POWER GAIN (dB)
2220
2060
IRL
17.4
PARC
f, FREQUENCY (MHz)
Figure 3. Output Peak--to--Average Ratio Compression (PARC)
Broadband Performance @ Pout
= 22 Watts Avg.
VDD=28Vdc,Pout
=22W(Avg.),IDQ
= 800 mA
Single--Carrier W--CDMA, 3.84 MHz Channel Bandwidth
Input Signal PAR = 7.5 dB @ 0.01% Probability(CCDF)
2080 22002160
2180
2120
2100
19
18
-- 2 . 5
34
33
32
31
30
-- 0 . 5
-- 1
-- 1 . 5
ηD
IRL, INPUT RETURN LOSS (dB)
PARC (dB)
-- 2 4
-- 8
-- 1 2
-- 1 6
-- 2 0
η
D
, DRAIN
EFFICIENCY (%)
2140
18.4
18.2
17.8
17.6
17
-- 2
-- 4
17.2
18.6
18.8
0
Gps
G
ps
, POWER GAIN (dB)
2220
2060
IRL
16.6
PARC
f, FREQUENCY (MHz)
Figure 4. Output Peak--to--Average Ratio Compression (PARC)
Broadband Performance @ Pout
= 40 Watts Avg.
VDD=28Vdc,Pout
=40W(Avg.),IDQ
= 800 mA
Single--Carrier W--CDMA, 3.84 MHz Channel Bandwidth
Input Signal PAR = 7.5 dB @ 0.01% Probability(CCDF)
2080 22002160
2180
2120
2100
18.2
17.4
-- 4
45
44
43
42
-- 2
-- 2 . 5
-- 3
ηD
IRL, INPUT RETURN LOSS (dB)
PARC (dB)
η
D
, DRAIN
EFFICIENCY (%)
2140
17.8
17.6
17.2
17
16.4
-- 3 . 5
16.8
18
41
Gps
Figure 5. Two--Tone Power Gain versus
Output Power
10 200100
13
20
1
IDQ
= 1200 mA
Pout, OUTPUT POWER (WATTS) PEP
VDD
= 28 Vdc, f1 = 2135 MHz, f2 = 2145 MHz
Two--Tone Measurements, 10 MHz Tone Spacing
400 mA
18
17
16
G
ps
, POWER GAIN (dB)
800 mA
15
Figure 6. Third Order Intermodulation Distortion
versus Output Power
-- 1 0
IDQ
= 400 mA
Pout, OUTPUT POWER (WATTS) PEP
1200 mA
600 mA
10
-- 2 0
-- 3 0
-- 4 0
100
-- 6 0
-- 5 0
VDD
= 28 Vdc, f1 = 2135 MHz, f2 = 2145 MHz
Two--Tone Measurements, 10 MHz Tone Spacing
1
INTERMODULATION D
ISTORTION (dBc)
IMD, THIRD ORDER
200
800 mA
600 mA
1000 mA
19
14
1000 mA
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