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FP31QF_06 Datasheet, PDF (7/12 Pages) WJ Communication. Inc. – 2-Watt HFET | |||
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FP31QF
2-Watt HFET
The Communications Edge TM
Product Information
Application Circuit: 2110 â 2170 MHz (FP31QF-PCB2140)
The application circuit is matched for output power.
Typical RF Performance
Drain Bias = +9 V, Ids = 450 mA, 25 °C
Frequency
MHz 2110 2140
S21 â Gain
dB 13.2 13.3
S11 â Input Return Loss
dB -17 -19
S22 â Output Return Loss dB -14 -24
Output P1dB
dBm +33.6 +33.2
Output IP3
(+18 dBm / tone, 1 MHz spacing)
dBm
+46.6
Noise Figure
dB 4.7 4.6
IS-95 Channel Power
dBm
+25
@ -45 dBc ACPR
2170
13.1
-16
-18
+33.3
4.9
C2
C3
Circuit Board Material: .014â FR-4 (εr = 4.6),
4 layers (other layers added for rigidity), .062â total thickness, 1 oz copper
The main microstrip line has a line impedance of 50 â¦.
Ref. Desig.
C1, C4, C8, C10
C2, C3
C7, C11
C12
L1, L2
L3
R1
R2
Q1
C5, C6
Bill of Materials
Value
Part style
22 pF
Chip capacitor
2 pF
Chip capacitor
1000 pF Chip capacitor
0.1 µF
Chip capacitor
12 nH
Wirewound chip inductor
4.7 nH
Multilayer chip inductor
5.1 â¦
Chip resistor
51 â¦
Chip resistor
FP31QF WJ 2W HFET
Do Not Place
Size
0603
0603
0603
1206
0805
0603
0603
0603
QFN 6x6
⢠The C2 and C3 placements are at silk screen markers, âAâ and â2.5â, respectively.
⢠The via hole spacing along the main microstrip line is .040â.
⢠The distance from the edge of the FP31QF to the closer edge of L3 is .305â.
⢠The transmission line lengths shown in the schematic are from the FP31QF
device edge to the component edge.
ID=C1
C=22 pF
ID=L3
L=4.7 nH
ID=C2
C=2 pF
ID=C8
C=22 pF
ID=C7
C=1000 pF
-Vgg Vds=9V @ 450 mA
TLINP
ID=TL1
Z0=50 Ohm
L=150 mil
Eeff=3.46
Loss=0
F0=0 MHz
ID=R2
R=51 Ohm
ID=L1
L=12 nH
ID=R1
R=5.1 Ohm
NET="FP31QF"
2
1
ID=L2
L=12 nH
TLINP
ID=TL2
Z0=50 Ohm
L=180 mil
Eeff=3.46
Loss=0
F0=0 MHz
ID=C12
C=1e5 pF
ID=C11
C=1000 pF
ID=C10
C=22 pF
ID=C4
C=22 pF
ID=C3
C=2 pF
Specifications and information are subject to change without notice
WJ Communications, Inc ⢠Phone 1-800-WJ1-4401 ⢠FAX: 408-577-6621 ⢠e-mail: sales@wj.com ⢠Web site: www.wj.com
Page 7 of 12 October 2006
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