
MRF21120 MRF21120S
4
MOTOROLA RF DEVICE DATA
Figure 1. 2.1
–
2.2 GHz Broadband Test Circuit Schematic
VGG
+
C19
C17
B1
C16
C14
VDD
C33
+
C32
R3
C34
C35
+
Z1
Z10
Z12
Z14
Z18
Z20
DUT
C2
Z22
RF
INPUT
C3
COAX1
Z2
RF
OUTPUT
C5
Z26
C9
Z28
Z30
Z34
C7
Z36
Z24
C8
COAX2
VGG
+
C25
C24
C23
C21
COAX3
C6
VDD
C42
C41
C40
+
C43
C44
+
COAX4
B1, B2
C1, C2, C12
C3, C4, C9, C10
C5
C6, C7
C8
C11
C13, C20, C29, C37
C14, C21, C28, C38
C15, C22, C27, C34, C36, C42 22
μ
F, 35 V, Tantalum Surface Mount Chip Capacitor, Kemet
C16, C23, C33, C43
0.039
μ
F, B Case Chip Capacitor, ATC
C17, C24, C32, C41
1000 pF, B Case Chip Capacitor, ATC
C19, C25
0.022
μ
F, B Case Chip Capacitor, ATC
C30, C39
1.0
μ
F, 35 V, Tantalum Surface Mount Chip Capacitor, Kemet
C31, C40
100
μ
F, 50 V, Electrolytic Capacitor, Sprague
C35, C44
470
μ
F, 63 V, Electrolytic Capacitor, Sprague
Coax1, Coax2
25
, Semi Rigid Coax, 70 mil OD, 1.05
″
Long
Coax3, Coax4
50
, Semi Rigid Coax, 85 mil OD, 1.05
″
Long
L1, L5
5.0 nH, Minispring Inductor, Coilcraft
L2
8.0 nH, Minispring Inductor, Coilcraft
L3, L4
7.15 nH, Microspring Inductor, Coilcraft
R1, R2
1 k
, Fixed Metal Film Resistor, 1/4 W, Dale
R3, R4
270
, Fixed Film Chip Resistor, 1/8 W, Dale
R5, R6
1.2 k
, Fixed Film Chip Resistor, 1/8 W, Dale
Z1
0.150
″
x 0.080
″
Microstrip
Ferrite Bead, Fair Rite
0.6
–
4.5 pF, Variable Capacitor, Johanson Gigatrim
10 pF, B Case Chip Capacitor, ATC
0.4
–
2.5 pF, Variable Capacitor, Johanson Gigatrim
2.0 pF, B Case Chip Capacitor, ATC
0.5 pF, B Case Chip Capacitor, ATC
0.2 pF, B Case Chip Capacitor, ATC
5.1 pF, B Case Chip Capacitor, ATC
91 pF, B Case Chip Capacitor, ATC
Z2
Z4, Z5
Z6, Z7
Z8, Z9
Z10, Z11
Z12, Z13
Z14, Z15
Z16, Z17
Z18, Z19
Z20, Z21
Z22, Z23
Z24, Z25
Z26, Z27
Z28, Z29
Z30, Z31
Z32, Z33
Z34, Z35
Z36, Z37
Z38, Z39
Z40
Z41
Z42
Board Material
0.320
″
x 0.080
″
Microstrip
1.050
″
x 0.080
″
Microstrip
0.120
″
x 0.080
″
Microstrip
0.140
″
x 0.080
″
Microstrip
0.610
″
x 0.080
″
Microstrip
0.135
″
x 0.080
″
Microstrip
0.130
″
x 0.080
″
Microstrip
0.300
″
x 0.350
″
Microstrip
0.150
″
x 0.500
″
Microstrip
0.075
″
x 0.500
″
Microstrip
0.330
″
x 0.500
″
Microstrip
0.100
″
x 0.550
″
Microstrip
0.175
″
x 0.550
″
Microstrip
0.045
″
x 0.550
″
Microstrip
0.190
″
x 0.325
″
Microstrip
0.080
″
x 0.325
″
Microstrip
0.515
″
x 0.080
″
Microstrip
0.020
″
x 0.080
″
Microstrip
0.565
″
x 0.080
″
Microstrip
0.100
″
x 0.080
″
Microstrip
0.470
″
x 0.080
″
Microstrip
0.100
″
x 0.080
″
Microstrip
0.03
″
Teflon
,
ε
r = 2.55 Copper
Clad, 2 oz. Cu
N
–
Type Panel Mount, Stripline
Connectors
C13
C15
R5
L2
Z8
C1
Z6
Z4
Z5
L1
Z16
Z11
Z13
Z15
Z19
Z21 Z23
C4
Z9
Z7
Z17
R6
C20
C22
B2
R4
C31
C27
C29
C28
C30
Z32
C11
Z38
Z39
L4
Z27
C10
Z29
Z31
Z35
Z37
Z25
Z33
C36
C37
C38
C39
Z42
L5
Z41
C12
Z40
+
+
L3
R1
R2
+
+
+
+
+
+
+
+