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ARF440 Fiches technique(PDF) 2 Page - Advanced Power Technology

No de pièce ARF440
Description  N-CHANNEL ENHANCEMENT MODE RF POWER MOSFET
Download  4 Pages
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Fabricant  ADPOW [Advanced Power Technology]
Site Internet  http://www.advpowertech.com
Logo ADPOW - Advanced Power Technology

ARF440 Fiches technique(HTML) 2 Page - Advanced Power Technology

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+Vbias
VDD = 50V
Idq = 0.4A
RF
Output
RF
Input
L1
T1
2:1
C1
C2
R2
R1
3.3K
75-480pF
.1µF
Q1
C4
25-240pF
C5
C6
RFC1
T2
C9
C10
C11
+
.01µF
.1µF
10µF (50V)
3.3K
3.3K
R3
C7
C8
C3
.1µF
T3
BFC1
ATC"B"
.01µF
.01µF
ATC"B"
ATC"B"
.01µF
.01µF
ATC"B"
0.5µH
0.4µH
L2
Q2
Parts List
C1 = 75-480pF Compression Mica
C2, C3 & C10 = .1
µF @ 50V, Novacap #1210B104K500N
C4 = 25-240pF Compression Mica
C5, C6, C7, C8 & C9 = .01
µF @ 50V, Novacap #1210B103K500N
C11 = 10
µF @ 50V Electrolytic
R1, R2 & R3 = 1K
Ω, 5%, 1/4W, Carbon
Q1 = ARF440
Q2 = ARF441
L1 = 7.5 T of #18AWG, ID = .438", L = 0.5
µH
L2 = 6.5 T of #18AWG, ID = .438", L = 0.4
µH
BFC1 = Balanced DC Feed Choke; 7 T of #18 stranded PTFE twisted pair on an Indiana General #F624-19-Q1 toroid.
µi = 125
RFC1 = 2 T of #18 stranded PTFE on a Fair-Rite #2677006301 shield bead.
µi = 2000
T1 = 4:1 Z Conventional Transformer; 2:1 T of #22 stranded PTFE on a Fair-Rite #2843000202 Balun Core.
µi = 850
T2 & 3 = 1:4 Z Transmission Line Transformer; 6 T of mini 25
Ω PTFE coax on a Fair-Rite #2643102002 shield bead. µi = 2000
PCB = .062" G10 Epoxy Glass.
DYNAMIC CHARACTERISTICS
ARF440/441
Symbol
C
iss
C
oss
C
rss
Characteristic
Input Capacitance
Output Capacitance
Reverse Transfer Capacitance
Test Conditions
V
GS
= 0V
V
DS
= 50V
f = 1 MHz
MIN
TYP
MAX
755
900
155
215
55
90
UNIT
pF
FUNCTIONAL CHARACTERISTICS
Symbol
G
PS
η
ψ
MIN
TYP
MAX
18
21
63
UNIT
dB
%
Test Conditions
V
DD
= 50V
P
out
= 125W
I
DQ
= 200mA
f = 13.56MHz
No Degradation in Output Power
Characteristic
Common Source Amplifier Power Gain
Drain Efficiency
Electrical Ruggedness VSWR 30:1
1 Pulse Test: Pulse width < 380
µS, Duty Cycle < 2%
APT Reserves the right to change, without notice, the specifications and information contained herein.
TYPICAL 13.56 MHz, 250 WATT PUSH-PULL POWER AMPLIFIER CIRCUIT


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