MRF7S38040HR3 MRF7S38040HSR3
1
RF Device Data
Freescale Semiconductor
RF Power Field Effect Transistors
N-Channel Enhancement-Mode Lateral MOSFETs
Designed for WiMAX base station applications with frequencies up to
3800 MHz. Suitable for WiMAX, WiBro, BWA, and OFDM multicarrier Class
AB and Class C amplifier applications.
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Typical WiMAX Performance: VDD
= 30 Volts, I
DQ
= 450 mA, P
out
=
8 Watts Avg., f = 3400-3600 MHz, 802.16d, 64 QAM 3/4, 4 bursts, 7 MHz
Channel Bandwidth, Input Signal PAR = 9.5
dB @ 0.01% Probability on
CCDF.
Power Gain ? 14 dB
Drain Efficiency ? 15.6%
Device Output Signal PAR ? 8.4 dB @ 0.01% Probability on CCDF
ACPR @ 5.25 MHz Offset ? -49
dBc in 0.5
MHz Channel Bandwidth
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Capable of Handling 10:1 VSWR, @ 32 Vdc, 3500 MHz, 40 Watts CW
Peak Tuned Output Power
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Pout
@ 1 dB Compression Point
40 Watts CW
Features
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Characterized with Series Equivalent Large-Signal Impedance Parameters
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Internally Matched for Ease of Use
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Integrated ESD Protection
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Greater Negative Gate-Source Voltage Range for Improved Class C
Operation
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RoHS Compliant
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In Tape and Reel. R3 Suffix = 250 Units per 32 mm, 13 inch Reel.
Table 1. Maximum Ratings
Rating
Symbol
Value
Unit
Drain-Source Voltage
VDS
-0.5, +65
Vdc
Gate-Source Voltage
VGS
-6.0, +10
Vdc
Operating Voltage
VDD
32, +0
Vdc
Storage Temperature Range
Tstg
- 65 to +150
°C
Case Operating Temperature
TC
150
°C
Operating Junction Temperature
(1,2)
TJ
225
°C
Table 2. Thermal Characteristics
Characteristic
Symbol
Value (2,3)
Unit
Thermal Resistance, Junction to Case
Case Temperature 96°C, 39 W CW
Case Temperature 75°C, 8 W CW
RθJC
0.78
0.83
°C/W
1. Continuous use at maximum temperature will affect MTTF.
2. MTTF calculator available at http://www.freescale.com/rf. Select Tools/Software/Application Software/Calculators to access the MTTF
calculators by product.
3. Refer to AN1955, Thermal Measurement Methodology of RF Power Amplifiers. Go to http://www.freescale.com/rf.
Select Documentation/Application Notes - AN1955.
Document Number: MRF7S38040H
Rev. 0, 8/2007
Freescale Semiconductor
Technical Data
MRF7S38040HR3
MRF7S38040HSR3
3400-3600 MHz, 8 W AVG., 30 V
WiMAX
LATERAL N-CHANNEL
RF POWER MOSFETs
CASE 465I-02, STYLE 1
NI-400-240
MRF7S38040HR3
CASE 465J-02, STYLE 1
NI-400S-240
MRF7S38040HSR3
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Freescale Semiconductor, Inc., 2007. All rights reserved.
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