参数资料
型号: MRF134
元件分类: 功率晶体管
英文描述: UHF BAND, Si, N-CHANNEL, RF POWER, MOSFET
封装: CASE 211-07, 4 PIN
文件页数: 6/10页
文件大小: 208K
代理商: MRF134
Figure 14. 400 MHz Test Circuit
C1, C6 — 270 pF, ATC 100 mils
C2, C3, C4, C5 — 0–20 pF Johanson
C7, C9, C10, C14 — 0.1
F Erie Redcap, 50 V
C8 — 0.001
F
C11 — 10
F, 50 V
C12, C13 — 680 pF Feedthru
D1 — 1N5925A Motorola Zener
L1 — 6 Turns, 1/4
″ ID, #20 AWG Enamel
L2 — Ferroxcube VK–200 — 19/4B
R1 — 68
, 1.0 W Thin Film
R2 — 10 k
, 1/4 W
R3 — 10 Turns, 10 k
Beckman Instruments 8108
R4 — 1.8 k
, 1/2 W
Z1 — 1.4
″ x 0.166″ Microstrip
Z2 — 1.1
″ x 0.166″ Microstrip
Z3 — 0.95
″ x 0.166″ Microstrip
Z4 — 2.2
″ x 0.166″ Microstrip
Z5 — 0.85
″ x 0.166″ Microstrip
Board — Glass Teflon, 62 mils
Figure 15. Large–Signal Series Equivalent
Input/Output Impedances, Zin, ZOL*
R3*
R4
R1
C8
C9
C7
C1
C2
C3
DUT
Z1
Z2
Z3
D1
L1
C10
C11
L2
C12
C13
C14
VDD = 28 V
RF OUTPUT
RF INPUT
C4
C5
C6
Z4
Z5
*Bias Adjust
R2
+
-
400
225
150
f = 100 MHz
400
225
150
f = 100 MHz
ZOL*
Zin{
Zo = 50
VDD = 28 V, IDQ = 50 mA, Pout = 5.0 W
{68 Shunt Resistor Gate-to-Ground
ZOL* = Conjugate of the optimum load impedance
ZOL* = into which the device output operates at a
ZOL* = given output power, voltage and frequency.
f
MHz
Zin{
Ohms
ZOL*
Ohms
100
150
225
400
21.2 - j25.4
14.6 - j22.1
9.1 - j18.8
6.4 - j10.8
20.1 - j46.7
19.2 - j38.2
17.5 - j33.5
16.9 - j26.9
5
REV 6
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