B2
V
GG
+
V
DD
B1
+
C9
C8
C7
R4
C16
C15
C14
C17
R3
R2
L4
C6
RF
OUTPUT
L2
L3
C13
Z10
Z6
Z7
Z8
Z9
RF
INPUT
R1
DUT
N2
L1
Z1
Z2
Z3
Z4
Z5
C12
C10
C1
N1
C11
C4
C3
C5
C2
B1, B2
Short Ferrite Beads, Fair Rite Products
(2743021446)
L4
N1, N2
R1
R2
R3
R4
Z1
Z2
Z3
Z4
Z5, Z6
Z7
Z8
Z9
55.5 nH, 5 Turn, Coilcraft
Type N Flange Mounts
15 W Chip Resistor (0805)
56 W, 1/4 W Carbon Resistor
100 W Chip Resistor (0805)
33 kW, 1/8 W Carbon Resistor
0.115″ x 0.080″ Microstrip
0.255″ x 0.080″ Microstrip
1.037″ x 0.080″ Microstrip
0.192″ x 0.080″ Microstrip
0.260″ x 0.223″ Microstrip
0.125″ x 0.080″ Microstrip
0.962″ x 0.080″ Microstrip
0.305″ x 0.080″ Microstrip
C1, C13
C2, C4, C11
C3
330 pF, 100 mil Chip Capacitors
0 to 20 pF Trimmer Capacitors
12 pF, 100 mil Chip Capacitor
43 pF, 100 mil Chip Capacitor
75 pF, 100 mil Chip Capacitors
10 µF, 50 V Electrolytic Capacitors
1,200 pF, 100 mil Chip Capacitors
0.1 µF, 100 mil Chip Capacitors
75 pF, 100 mil Chip Capacitor
13 pF, 100 mil Chip Capacitor
26 nH, 4 Turn, Coilcraft
C5
C6, C17
C7, C14
C8, C15
C9, C16
C10
C12
L1
L2
L3
5 nH, 2 Turn, Coilcraft
33 nH, 5 Turn, Coilcraft
Z10
Board
0.155″ x 0.080″ Microstrip
Glass Teflon , 31 mils, 2 oz. Copper
Figure 28. 135 - 175 MHz Broadband Test Circuit
TYPICAL CHARACTERISTICS, 135 - 175 MHz
12
0
V
DD
= 12.5 Vdc
10
8
−5
−10
−15
155 MHz
155 MHz
6
175 MHz
135 MHz
135 MHz
175 MHz
4
2
0
V
= 12.5 Vdc
0.3
DD
−20
0
0.1
0.2
P , INPUT POWER (WATTS)
0.4
0
1
2
3
4
5
6
7
8
9
10 11 12
P , OUTPUT POWER (WATTS)
out
in
Figure 29. Output Power versus Input Power
Figure 30. Input Return Loss
versus Output Power
MRF1518NT1 MRF1518T1
RF Device Data
Freescale Semiconductor
9
MOTOROLA [ MOTOROLA ]
