
MRF282SR1 MRF282ZR1
6
MOTOROLA RF DEVICE DATA
Z7
Z8
Z9
Raw Board
Material
0.408
″
x 0.08
″
Microstrip
0.990
″
x 0.08
″
Microstrip
0.295
″
x 0.08
″
Microstrip
0.030
″
Glass Teflon
, 2 oz Copper,
3
″
x 5
″
Dimensions,
Arlon GX0300–55–22,
ε
r = 2.55
Figure 5. Class A Test Circuit Schematic
RF
INPUT
RF
OUTPUT
DUT
Z9
Z1
Z2
Z3
Z4
Z5
Z6
Z8
VSUPPLY
VDD
Q1
Q2
C2
C4
L1
C7
C3
C10
C13
C14
L2
C19
C18
C20
C15
R1
B1
R8
VDD
C5
C6
C8
C9
R9
B2
R10
B3
C16
C11
Z7
C12
C17
C1
R2
R3
R4
R5
R6
R7
+
+
+
Z1
Z2
Z3
Z4
Z5
Z6
0.624
″
x 0.08
″
Microstrip
0.725
″
x 0.08
″
Microstrip
0.455
″
x 0.08
″
Microstrip
0.530
″
x 0.330
″
Microstrip
0.280
″
x 0.330
″
Microstrip
0.212
″
x 0.330
″
Microstrip
Table 3. Class A Broadband Component Designations and Values
Designators
Description
B1, B2, B3
C1, C20
C2
C3, C10, C15
C4, C16
C5
C6, C7, C9, C14, C17
C8, C13
C11, C12
C18
C19
L1
L2
Q1
Q2
R1
R2
R3
R4, R6, R7
R5
R8, R9, R10
Input/Output
Ferrite Bead, Ferroxcube, 56–590–65–3B
470
μ
F, 63 V, Electrolytic Capacitor, Mallory # SME63V471M12X25L
0.01
μ
F, B Case Chip Capacitor, ATC # 100B103JCA50X
0.6–4.5 pF, Variable Capacitor, Johanson # 27271SL
0.02
μ
F, B Case Chip Capacitor, ATC # 100B203JCA50X
100
μ
F, 50 V, Electrolytic Capacitor, Mallory # SME50VB101M12X256
12 pF, B Case Chip Capacitor, ATC # 100B120JCA500X
51 pF, B Case Chip Capacitor, ATC # 100B510JCA500X
0.3 pF, B Case Chip Capacitor, ATC # 100B0R3CCA500X
0.1
μ
F, Chip Capacitor, Kemet # CDR33BX104AKWS
0.4–2.5 pF, Variable Capacitor, Johanson # 27285
8 Turns, 0.042
″
ID, 24 AWG, Enamel
9 Turns, 0.046
″
ID, 26 AWG, Enamel
NPN, 15 W, Bipolar Transistor, MJD310
PNP, 15 W, Bipolar Transistor, MJD320
200
, Axial, 1/4 W Resistor
1.0 k
, 1/2 W Potentiometer, Bourns
13
k
, Axial, 1/4 W Resistor
390
, 1/8 W Chip Resistor, Garrett Instruments # RM73B2B391JT
1.0
, 10 W 1% Resistor, DALE # RE65G1R00
12
, 1/8 W Chip Resistor, Garrett Instruments # RM73B2B120JT
Type N Flange Mount RF55–22, Connectors, Omni–Spectra