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MRF21090R3_06 Datasheet, PDF (3/8 Pages) Freescale Semiconductor, Inc – RF Power Field Effect Transistors
R2
VGG
R1
+
+
C1 C2 C3 C4
RF INPUT
Z1
C6
Z2
C5
Z3
Z4
Z11
Z10
Z5
DUT
+
C7 C8
B1
+
C9 C10 C11
VDD
+
C13
RF OUTPUT
Z6
Z7
Z8 C14 Z9
C12
B1
C1, C13
C2, C10
C3, C9
C4, C8
C5, C12
C6
C7
C11
C14
R1
R2
Z1
Z2
Z3
Z4
Z5
Z6
Ferrite Bead, Fair Rite #2743019447
470 μF, 50 V Electrolytic Capacitors
22 μF, 35 V Tantalum Surface Mount Chip
Capacitors, Kemet
20 nF Chip Capacitors, ATC #100B203MCA500X
5.1 pF Chip Capacitors, ATC #100B5R1CCA500X
0.4 - 2.5 pF Variable Capacitors, Johanson Gigatrim
10 pF Chip Capacitor, ATC #100B100JCA500X
1 mF, 35 V Tantalum Surface Mount Chip Capacitor,
Kemet
1 nF Chip Capacitor, ATC #100B102JCA500X
8.2 pF Chip Capacitor, ATC #100B8R2CCA500X
13 Ω, 1/4 W Chip Resistor,
Garret Instrument #RM73B2B130JT,
12 Ω, 1/4 W Chip Resistor,
Garret Instrument #RM73B2B120JT
30.7 x 2.09 mm Microstrip
5.99 x 2.09 mm Microstrip
7.55 x 9.89 mm Microstrip
3.77 x 15.71 mm Microstrip
6.89 x 26.17 mm Microstrip
14.93 x 32.05 mm Microstrip
Z7
Z8
Z9
Z10
Z11
WS1, WS2
Endplates Brass
Bedstead
Insert
Raw PCB
RF Circuit
10.23 x 2.09 mm Microstrip
6.03 x 2.09 mm Microstrip
23.98 x 2.09 mm Microstrip
29.82 x 1.15 mm Microstrip
17.08 x 1.15 mm Microstrip
Beryllium Copper Wear Blocks 5 mils Thick
Brass Banana Jack and Nut
Red Banana Jack and Nut
Green Banana Jack and Nut
Type N Jack Connectors, 3052 - 1648- 10,
Omni Specra
4 - 40 Head Screws 0.125″ Long
4 - 40 Head Screws 0.188″ Long
4 - 40 Head Screws 0.312″ Long
4 - 40 Head Screws 0.438″ Long
Endplates for Copper Bedstead
Copper Bedstead/Heatsink
Copper Bedstead Insert
0.030″ Glass Teflon®, 2 oz Copper Clad
3″ x 5″ Arion
3″ x 5″ Copper Clad PCB Teflon®,
MRF21090, CMR
Figure 1. MRF21090R3(SR3) Test Circuit Schematic
Gate
Bias
Feed
R1
C3 C4
C1
C2
C6
C5
C7 C8
B1
Drain
Bias
Feed
R2
C9 C11
C13
C10
C
U
T
O
C14
U
T
C12
MRF21090
Freescale has begun the transition of marking Printed Circuit Boards (PCBs) with the Freescale
Semiconductor signature/logo. PCBs may have either Motorola or Freescale markings during the
transition period. These changes will have no impact on form, fit or function of the current product.
Figure 2. MRF21090R3(SR3) Test Circuit Component Layout
MRF21090R3 MRF21090SR3
RF Device Data
Freescale Semiconductor
3