MRF1517NT1
3
RF Device Data
Freescale Semiconductor
Figure 1. 480 - 520 MHz Broadband Test Circuit
VDD
+
C7
R3
C8
C6
R2
RF
INPUT
RF
OUTPUT
Z2 Z3
Z6
C1
C3
C14
DUT
Z5
Z7
Z9
Z10
Z4
L1
Z8
N2
C18
B2
N1
C13
C4
C12
B1, B2 Short Ferrite Beads, Fair Rite Products
(2743021446)
C1 300 pF, 100 mil Chip Capacitor
C2, C3, C4, C10,
C12, C13 0 to 20 pF, Trimmer Capacitors
C5, C11 43 pF, 100 mil Chip Capacitors
C6, C18 120 pF, 100 mil Chip Capacitors
C7, C15 10 μF, 50 V Electrolytic Capacitors
C8, C16 0.1 μF, 100 mil Chip Capacitors
C9, C17 1,000 pF, 100 mil Chip Capacitors
C14 330 pF, 100 mil Chip Capacitor
L1 55.5 nH, 5 Turn, Coilcraft
N1, N2 Type N Flange Mounts
R1 15 Ω, 0805 Chip Resistor
R2 1.0 kΩ, 1/8 W Resistor
R3 33 kΩ, 1/2 W Resistor
Z1 0.315″
x 0.080
Microstrip
Z2 1.415″
x 0.080
Microstrip
Z3 0.322″
x 0.080
Microstrip
Z4 0.022″
x 0.080
Microstrip
Z5, Z6 0.260″
x 0.223
Microstrip
Z7 0.050″
x 0.080
Microstrip
Z8 0.625″
x 0.080
Microstrip
Z9 0.800″
x 0.080
Microstrip
Z10 0.589″
x 0.080
Microstrip
Board Glass Teflon?, 31 mils, 2 oz. Copper
Z1
C2
VGG
+
C15
C9
B1
R1
C16
C17
C5
C11
C10
TYPICAL CHARACTERISTICS, 480 - 520 MHz
Pout, OUTPUT POWER (WATTS)
IRL, INPUT RETURN LOSS (dB)
?5
?15
?25
?10
2
0
4687910
1
Figure 2. Output Power versus Input Power
Pin, INPUT POWER (WATTS)
2
Figure 3. Input Return Loss versus
Output Power
P
out
, OUTPUT POWER (WATTS)
0
6
0.6 1.00.8
0.2
4
0.4
0
3
10
8
520 MHz
500 MHz
480 MHz
5
?20
520 MHz
500 MHz
480 MHz
VDD
= 7.5 Vdc
VDD
= 7.5 Vdc
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