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MRF284 Datasheet, PDF (4/12 Pages) Motorola, Inc – RF Power Field-Effect Transistors
VSUPPLY
+
R1
P1
Q1
R2
R4
+
C1
R3
+
VDD
R6
Q2 R5
B1
+
C9 C7 R7
B2
C8 R8
C2 C4
C11 C13
B3
R9
C10
B4 B5
VDD
+
+
R10 R11
C15 C16
–
L4
L1
RF
INPUT Z1 Z2
L3
Z10 Z11
DUT
Z3
Z4 Z5 Z6 Z7 Z8 Z9
C3
L2
C5
C6
Z12
C12
Z13 Z14
Z15
C14
RF
Z16 OUTPUT
C17
B1 – B5
C1, C9, C16
C2, C13
C3, C14
C4, C11
C5
C6
C7, C15
C8
C10
C12, C17
L1
L2
L3, L4
P1
Q1
Q2
R1
R2
R3
R4
Ferrite Bead, Round
100 µF, 50 V, Electrolytic Capacitor, Sprague
51 pF, ATC RF Chip Capacitors, Case “B”
10 pF, ATC RF Chip Capacitors, Case “B”
12 pF, ATC RF Chip Capacitors, Case “B”
0.8 – 8.0 pF Variable Capacitor, Johansen Gigatrim
4.7 pF, ATC RF Chip Capacitor, Case “B”
91 pF, ATC RF Chip Capacitors, Case “B”
1000 pF, ATC RF Chip Capacitor, Case “B”
0.1 µF, Chip Capacitor, KEMET
0.6 – 4.5 pF, Variable Capacitors, Johansen Gigatrim
4 Turns, #27 AWG, 0.087″ OD, 0.050″ ID,
0.069″ Long, 10 nH
5 Turns, #24 AWG, 0.083″ OD, 0.040″ ID,
0.128″ Long, 12.5 nH
9 Turns, #26 AWG, 0.080″ OD, 0.046″ ID,
0.170″ Long, 30.8 nH
1000 Ohm Potentiometer, 1/2 W, 10 Turns
Transistor, NPN, Motorola P/N: MJD31, Case 369A–10
Transistor, PNP, Motorola P/N: MJD32, Case 369A–10
360 Ω, Fixed Film Chip Resistor 0.08″ x 0.13″
2 x 12 kΩ, Fixed Film Chip Resistor 0.08″ x 0.13″
1 Ω, Wirewound, 5 W, 3% Resistor
4 x 6.8 kΩ, Fixed Film Chip Resistor 0.08″ x 0.13″
R5
R6
R7 – R11
Z1
Z2
Z3
Z4
Z5
Z6
Z7
Z8
Z9
Z10
Z11
Z12
Z13
Z14
Z15
Z16
Raw PCB
Material
2 x 1500 Ω, Fixed Film Chip Resistor 0.08″ x 0.13″
270 Ω, Fixed Film Chip Resistor, 0.08″ x 0.13″
12 Ω, Fixed Film Chip Resistor, 0.08″ x 0.13″
0.363″ x 0.080″ Microstrip
0.080″ x 0.080″ Microstrip
0.916″ x 0.080″ Microstrip
0.517″ x 0.080″ Microstrip
0.050″ x 0.325″ Microstrip
0.050″ x 0.325″ Microstrip
0.071″ x 0.325″ Microstrip
0.125″ x 0.325″ Microstrip
0.210″ x 0.515″ Microstrip
0.210″ x 0.515″ Microstrip
0.235″ x 0.325″ Microstrip
0.02″ x 0.325″ Microstrip
0.02″ x 0.325″ Microstrip
0.510″ x 0.080″ Microstrip
0.990″ x 0.080″ Microstrip
0.390″ x 0.080″ Microstrip
0.030″ Glass Teflon, 2 oz Copper,
3 x 5″ Dimensions, Manufacturer;
Arlon, P/N: GX–0300–55–22, εr = 2.55
Figure 2. Schematic of 2.0 GHz Class A Test Circuit
MRF284 MRF284S
4
MOTOROLA RF DEVICE DATA