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MRF7S21170HR3 Datasheet, PDF (6/12 Pages) Freescale Semiconductor, Inc – RF Power Field Effect Transistors (N-Channel Enhancement-Mode Lateral MOSFETs) | |||
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TYPICAL CHARACTERISTICS
â10
VDD = 28 Vdc, IDQ = 1400 mA
f1 = 2135 MHz, f2 = 2145 MHz
â20 TwoâTone Measurements, 10 MHz Tone Spacing
â30
â40
3rd Order
â50
â60
1
5th Order
7th Order
10
100
400
Pout, OUTPUT POWER (WATTS) PEP
Figure 7. Intermodulation Distortion Products
versus Output Power
0
â5 VDD = 28 Vdc, Pout = 170 W (PEP), IDQ = 1400 mA
â10
TwoâTone Measurements
(f1 + f2)/2 = Center Frequency of 2140 MHz
â15
â20
â25
IM3âL
â30
IM3âU
â35
â40
IM5âU
â45
IM5âL
â50
â55
IM7âU IM7âL
1
10
100
TWOâTONE SPACING (MHz)
Figure 8. Intermodulation Distortion Products
versus Tone Spacing
1
54
0
Ideal 48
â1
42
â1 dB = 43.335 W
â2
36
â2 dB = 61.884 W
â3
30
â3 dB = 83.111 W
Actual
â4
24
VDD = 28 Vdc, IDQ = 1400 mA
f = 2140 MHz, Input PAR = 7.5 dB
â5
18
20
40
60
80
100
120
Pout, OUTPUT POWER (WATTS)
Figure 9. Output Peak - to - Average Ratio
Compression (PARC) versus Output Power
â20
VDD = 28 Vdc, IDQ = 1400 mA, f = 2140 MHz
SingleâCarrier WâCDMA, PAR = 7.5 dB, ACPR @
â30 5 MHz Offset in 3.84 MHz Integrated Bandwidth
Uncorrected, Upper and Lower
â40
DPD Corrected
No Memory Correction
â50
â60
DPD Corrected, with Memory Correction
â70
40 41 42 43 44 45 46 47 48 49 50
Pout, OUTPUT POWER (dBm)
Figure 10. Digital Predistortion Correction versus
ACPR and Output Power
19
18 Gps
17
16
TC = â30_C
25_C
85_C
60
â30_C
25_C
50
85_C
40
30
15
20
14
ηD
13
1
VDD = 28 Vdc
IDQ = 1400 mA
f = 2140 MHz
10
100
10
0
400
Pout, OUTPUT POWER (WATTS) CW
Figure 11. Power Gain and Drain Efficiency
versus CW Output Power
MRF7S21170HR3 MRF7S21170HSR3
6
RF Device Data
Freescale Semiconductor
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