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MRF284 MRF284S
4
MOTOROLA RF DEVICE DATA
Figure 2. Schematic of 2.0 GHz Class A Test Circuit
Z12
Z1
Z2
Z3
Z5
Z10
VSUPPLY
+
C3
L2
C14
+
C8
B1
R7
C2
–
L1
C5
Z6
L3
Z7
Z8
DUT
VDD
C16
+
C15
C10
C13
C11
+
L4
Z11
C12
Z13
Z15
Z16
C4
C7
C9
+
R6
R5
Q2
R3
VDD
C1
+
R4
Q1
R1
P1
R2
B1 – B5
C1, C9, C16
C2, C13
C3, C14
C4, C11
C5
C6
C7, C15
C8
C10
C12, C17
L1
Ferrite Bead, Round
100
μ
F, 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
μ
F, 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
, Fixed Film Chip Resistor 0.08
″
x 0.13
″
2 x 12 k
, Fixed Film Chip Resistor 0.08
″
x 0.13
″
1
, Wirewound, 5 W, 3% Resistor
4 x 6.8 k
, Fixed Film Chip Resistor 0.08
″
x 0.13
″
L2
L3, L4
P1
Q1
Q2
R1
R2
R3
R4
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
, Fixed Film Chip Resistor 0.08
″
x 0.13
″
270
, Fixed Film Chip Resistor, 0.08
″
x 0.13
″
12
, 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,
ε
r = 2.55
RF
INPUT
RF
OUTPUT
B2
R8
Z4
C6
Z9
Z14
C17
B3
R9
B4
R10
B5
R11