MRF21085 Datasheet, PDF (4/12 Pages) Motorola, Inc – RF Power Field Effect Transistors

Freescale Semiconductor, Inc.
V_GG
R3
R1
B1
+
R2
C5 C4 C3
C2
R4
+
L1
C7 C8
V_DD
+
+
C9 C10 C11 C12
RF
INPUT _Z1
Z2
C1
Z4
Z8
RF
Z3
Z5 Z6
Z7 ^OUTPUT
DUT
C6
Z1
0.750″ x 0.084″ Microstrip
Z2
1.015″ x 0.084″ Microstrip
Z3
0.480″ x 0.800″ Microstrip
Z4
0.750″ x 0.050″ Microstrip
Z5
0.610″ x 0.800″ Microstrip
Z6
0.885″ x 0.084″ Microstrip
Z7
0.720″ x 0.084″ Microstrip
Z8
0.800″ x 0.070″ Microstrip
Board
PCB
0.030″ Glass Teflon^,
Keene GX - 0300 - 55 - 22, ε_r = 2.55
Etched Circuit Boards
MRF21085 Rev. 3, CMR
Figure 1. MRF21085 Test Circuit Schematic
B1
C1, C6
C2
C3, C9
C4, C10
C5
C7
C8
C11, C12
L1
N1, N2
R1
R2
R3, R4
Table 1. MRF21085 Test Circuit Component Designations and Values
Designators
Description
Short Ferrite Bead, Fair Rite, #2743019447
43 pF Chip Capacitors, ATC #100B430JCA500X
10 pF Chip Capacitor, ATC #100B100JCA500X
1000 pF Chip Capacitors, ATC #100B102JCA500X
0.1 mF Chip Capacitors, Kemet #CDR33BX104AKWS
1.0 mF Tantalum Chip Capacitor, Kemet #T491C105M050
2.7 pF Chip Capacitor, ATC #100B2R7JCA500X
10 mF Tantalum Chip Capacitor, Kemet #T495X106K035AS4394
22 mF Tantalum Chip Capacitors, Kemet #T491X226K035AS4394
1 Turn, #20 AWG, 0.100″ ID, Motorola
Type N Flange Mounts, Omni Spectra #3052 - 1648 - 10
1.0 kΩ, 1/8 W Chip Resistor
180 kΩ, 1/8 W Chip Resistor
10 Ω, 1/8 W Chip Resistors
MRF21085R3 MRF21085SR3 MRF21085LSR3
MOTOROLA RF DEVICE DATA
4
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