FP31QF Datasheet, PDF (7/13 Pages) WJ Communication. Inc. – 2-Watt HFET

FP31QF
2-Watt HFET
The Communications Edge ^TM
Product Information
Application Circuit: 2110 – 2170 MHz (FP31QF-PCB2140)
The application circuit is matched for output power.
Typical RF Performance
Drain Bias = +9 V, I_ds = 450 mA, 25°C
Frequency
MHz 2110 2140
S21 – Gain
dB 13.2 13.3
S11 – Input Return Loss
dB -17 -19
S22 – 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
Ref. Desig.
C1, C4, C8, C10
C2, C3
C6, C11
C7
C12
L1, L2
L3
R1
R2
Q1
C5
Bill of Materials
Value
Part style
22 pF
Chip capacitor
2 pF
Chip capacitor
0.018 µF Chip capacitor
1000 pF Chip capacitor
0.1 µF
Chip capacitor
12 nH
Wirewound chip inductor
4.7 nH
Multilayer chip inductor
5.1 Ω
Chip resistor
51 Ω
Chip resistor
FP31QF WJ 2W HFET
Do Not Place
Size
0603
0603
0805
0603
1206
0805
0603
0603
0603
QFN 6x6
Circuit Board Material: .014” FR-4 (ε_r = 4.6),
4 layers (other layers added for rigidity), .062” total thickness, 1 oz copper
The main microstrip line has a line impedance of 50 Ω.
• The C2 and C3 placements are at silk screen markers, “A” and “2.5”, respectively.
• The via hole spacing along the main microstrip line is .040”.
• The distance from the edge of the FP31QF to the closer edge of L3 is .305”.
• The transmission line lengths shown in the schematic are from the FP31QF
device edge to the component edge.
CA P
ID=C6
CAP
ID =C7
CA P
ID=C8
C=2 2 pF C =100 0 pF C=1.8e 4 pF
-Vgg Vds=9V @ 450 mA
P ORT
P =1
Z=50 Ohm
CAP
ID=C1
C=2 2 pF
IND
ID=L3
L =4.7 nH
TLINP
ID =TL1
Z0 =50 Ohm
L =150 mil
Eeff =3 .46
Loss =0
F0 =0 MHz
CA P
ID=C2
C=2 pF
RES
ID=R2
R=51 Ohm
CAP
ID=C5
C=DNP pF
IND
ID=L1
2
L =1 2 nH
1
RES
ID=R1
R=5 Ohm
SUB CKT
ID=Q1
NET="FP31QF"
IND
ID=L2
L =1 2 nH
TL INP
ID=TL2
Z0 =50 Ohm
L =180 mil
Eeff=3 .46
Loss=0
F0 =0 MHz
CAP
ID=C12
C=1e 5 pF
CAP
ID=C11
C=1.8e 4 pF
CAP
ID =C10
C =2 2 pF
CAP
ID=C4
C=2 2 pF
P ORT
P =2
Z=50 Ohm
CAP
ID=C3
C=2 pF
Specifications and information are subject to change without notice
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: [phone] • e-mail: [e-mail] • Web site: www.wj.com
November 2004