MRF166W Freescale Semiconductor, MRF166W Datasheet - Page 3

• Manufacturer Part Number: MRF166W
• Manufacturer: Freescale Semiconductor

Specifications of MRF166W

• Channel Type: N
• Channel Mode: Enhancement
• Continuous Drain Current: 8A
• Drain Source Voltage (max): 65V
• Power Gain (typ)@vds: 16dB
• Frequency (max): 500MHz
• Pin Count: 5
• Output Capacitance (typ)@vds: 30@28VpF
• Operating Temp Range: -65C to 200C
• Drain Efficiency (typ): 55%
• Mounting: Screw
• Number Of Elements: 2
• Power Dissipation (max): 175000mW
• Lead Free Status / Rohs Status: Supplier Unconfirmed

3
REV 3
RF INPUT
BIAS SUPPLY
B1
C2
C1
C1, C2, C7, C8
C3, C6
C4
C5
C9, C10, C11, C12
C13
C14
L1, L2
B1, B2
R1
R2
R3, R4
Board Material – Teflon Fiberglass
Dielectric Thickness = 0.30 ,
R1
C3
Figure 1. MRF166W 500 MHz Test Circuit Schematic
C11
C9
C4
R2
C3
220 pF, 100 mil Chip Capacitor, ATC
0 – 10 pF, Johanson
27 pF, 100 mil Chip Capacitor, ATC
22 pF, 100 mil Chip Capacitor, ATC
0.01 F Blue Capacitor
470 pF, 100 mil Chip Capacitor, ATC
50
8 Turns #20 AWG, 0.100 mils ID
6 long, ID = 550 mils, 50
1.0 k
10 k
45
R3
R4
m
W
W
F, 50 V Electrolytic Capacitor
W
1/2 Watt
r
1/2 Watt
= 2.55 Copper Clad, 2.0 oz. Copper
1/2 Watt
Inputs Line
70 mils x 2460 mils
D.U.T.
L1
L2
490 mils
C4
W
Semi–Rigid Coax
C5
C12
C10
C13
C6
680 mils
C5
+
–
C7
C8
C14
Output Lines
70 mils x 2380 mils
B2
V DD = 28 Vdc
RF OUTPUT
C6