6
RF Device Data
Freescale Semiconductor
MRF7S38075HR3 MRF7S38075HSR3
TYPICAL CHARACTERISTICS
IRL, INPUT RETURN LOSS (dB)
ACPR (dBc)
f, FREQUENCY (MHz)
Figure 3. WiMAX Broadband Performance @ Pout
= 12 Watts Avg.
?20
?8
?12
?16
11.5
15.5
?55
16
14
12
?49
?51
η
D
, DRAIN
EFFICIENCY (%)
G
ps
, POWER GAIN (dB)
15
14.5
14
13.5
13
12.5
3450 3500 36003475
3525 35753550
10
?53
?24
IRL
Gps
ηD
VDD= 30 Vdc, Pout
= 12 W (Avg.), I
DQ
= 900 mA, 802.16d
64 QAM 3/4,
4 Bursts, 7 MHz Channel Bandwidth, Input
Signal PAR = 9.5 dB @ 0.01% Probability on CCDF
ACPR?L
ACPR?U
12
?47
IRL, INPUT RETURN LOSS (dB)
ACPR (dBc)
f, FREQUENCY (MHz)
Figure 4. WiMAX Broadband Performance @ Pout
= 23 Watts Avg.
?20
?8
?12
?16
11
15
?46
24
22
20
?40
?42
η
D
, DRAIN
EFFICIENCY (%)
G
ps
, POWER GAIN (dB)
14.5
14
13.5
13
12.5
18
?44
?24
IRL
Gps
VDD= 30 Vdc, Pout
= 23 W (Avg.), I
DQ
= 900 mA, 802.16d
64 QAM 3/4,
4 Bursts, 7 MHz Channel Bandwidth, Input
Signal PAR = 9.5 dB @ 0.01% Probability on CCDF
ACPR?L
ACPR?U
12
?38
Figure 5. Two-Tone Power Gain versus
Output Power
9
16
1
IDQ
= 1350 mA
Pout, OUTPUT POWER (WATTS) PEP
14
13
11
10 100
G
ps
, POWER GAIN (dB)
VDD
= 30 Vdc, I
DQ
= 900 mA
f1 = 3495
MHz, f2 = 3505 MHz
Two?Tone Measurements, 10 MHz Tone Spacing
12
15
1125 mA
900 mA
Figure 6. Third Order Intermodulation Distortion
versus Output Power
IDQ
= 450 mA
Pout, OUTPUT POWER (WATTS) PEP
10
?20
?30
?40
?50
1
INTERMODULATION DISTORTION (dBc)
IMD, THIRD ORDER
100
?10
VDD
= 30 Vdc, I
DQ
= 900 mA
f1 = 3495
MHz, f2 = 3505 MHz
Two?Tone Measurements, 10 MHz Tone Spacing
1350 mA
675 mA
900 mA
3425
3400
3450 3500 36003475
3525 35753550
3425
3400
11.5
ηD
10
200
675 mA
450 mA
200
1125 mA
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