ARF443 查看數據表（PDF） - Advanced Power Technology
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ARF443 Datasheet PDF : 4 Pages
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DYNAMIC CHARACTERISTICS
Symbol Characteristic
Ciss
Coss
Crss
Input Capacitance
Output Capacitance
Reverse Transfer Capacitance
Test Conditions
VGS = 0V
VDS = 100V
f = 1 MHz
ARF442/443
MIN TYP MAX UNIT
730 900
100 140 pF
33
50
FUNCTIONAL CHARACTERISTICS
Symbol Characteristic
Test Conditions
MIN TYP MAX UNIT
GPS1
η1
ψ
GPS2
η2
Common Source Amplifier Power Gain
Drain Efficiency
Electrical Ruggedness VSWR 30:1
Common Source Amplifier Power Gain
Drain Efficiency
VDD = 100V
VGS = 0V
Pout = 200W
f = 13.56MHz
VDD = 100V, Pout = 200W
IDQ = 50mA, f = 13.56MHz
17 18.9
dB
73
%
No Degradation in Output Power
22
dB
65
%
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, 400 WATT PUSH-PULL CLASS 'C' POWER AMPLIFIER CIRCUIT
RF
Input
0.5µH
L1
C1
75-480pF
Q1
T1
2:1
R1
10K
Q2
BFC1
T2
C4
.01µF
.01µF
C2
C3
.01µF
C5
.01µF
RF
Output
RFC1
C6
C7
.01µF .01µF
C8
C9 C10
+
VDD = 100V
.01µF .1µF 10µF (100V)
Parts List
C1 = 75-480pF Compression Mica
C2, C3, C4, C5, C6, C7 & C8 = .01µF @ 200V, CK06
C9 = .1µF @ 100V, CK06
C10 = 10µF @ 100V Electrolytic
R1 = 10KΩ, 5%, 1/4W, Carbon
Q1 = ARF442
Q2 = ARF443
L1 = 7.5 T of #18AWG, ID = .438", L = 0.5µH
BFC1 = Balanced DC Feed Choke; 7 T of #22 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 = 1:1 Z Transmission Line Transformer, using 50Ω coax.
• Coax = 22" of mini 50Ω PTFE coax, OD = .095"
• A large 2-hole balun core was constructed by gluing two Fair-Rite #2643102002, µi = 850 cores together.
• The transformer is constructed by winding 4.5 turns of the coax around the center of the balun core.
PCB = .062" G10 Epoxy Glass.
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