MRF373 Datasheet, PDF (4/12 Pages) Motorola, Inc – The RF MOSFET Line RF Power Field Effect Transistors N-Channel Enhancement-Mode Lateral MOSFETs

Figure 3. MRF373 Narrowband Test Fixture Photo
VGG
R2
C25 C24 C23 R1
RF
INPUT _Z1
Z2 Z3
C10
C11
Z4 Z5 Z6
C9
Z7 Z8
C8
VDD
C7
Z10
Z9
C20 C21
C1
L1
Z11 Z12 Z13 Z14 Z15
C22
Z16
RF
OUTPUT
C5
C2
C3 C4
C6
C1, C2
C3
C4, C11
C5, C10
C6
C7
C8
C9
C20, C23
C21
C24
C22
C25
L1
R1
R2
18 pF, B Case Chip Capacitor, ATC
12 pF, B Case Chip Capacitor, ATC
0.8 pF, B Case Chip Capacitor, ATC
68 pF, B Case Chip Capacitor, ATC
0.3 pF, B Case Chip Capacitor, ATC
15 pF, B Case Chip Capacitor, ATC
10 pF, B Case Chip Capacitor, ATC
1.8 pF, B Case Chip Capacitor, ATC
300 pF, B Case Chip Capacitor, ATC, Side Mounted
2) 2.2 mF, 100 V, Vishay P/N VJ3640Y225KXBAT
2) 1.0 mF, 50 V, Kemet P/N C1825C105
22 mF, 35 V, Kemet P/N T491D226K35AS
10 mF, 35 V, Kemet P/N T491D106K35AS
22 nH, Coilcraft P/N B07T
1.2 kΩ, Vishay Dale Chip Resistor (1206)
12 kΩ, Vishay Dale Chip Resistor (1206)
Connectors N–Type (female), M/A Com P/N 3052–1648–10
PCB
MRF373 Printed Circuit Board Rev 01, CuClad 250
(GX–0300–55), height 30 mils, ε_r = 2.55
(new PCB’s available from CMR)
Heatsink Motorola P/N 95–11LDMOSKPS–1
LDMOS m250 3″ x 5″ Bedstead
Insert
Motorola P/N 95–11LDMOSKPS–2S
Insert for LDMOS m250S 3″ x 5″ Bedstead
End Plates 2) Motorola P/N 93–3MB–9, End Plate for
Type–N Connector
Banana Jack and Nut
2) Johnson P/N 108–0904–001
Brass Banana Jack
2) H.H. Smith P/N SM–101
Figure 4. Single–Ended Narrowband Test Circuit Schematic (MRF373S)
MRF373 MRF373S
4
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS – RF AND IF DEVICE DATA