FP31QF-F TriQuint, FP31QF-F Datasheet - Page 9

• Manufacturer Part Number: FP31QF-F
• Description: RF Mixer 50-4000MHz +34dBm P1dB
• Manufacturer: TriQuint

Specifications of FP31QF-F

• Frequency Range: 915 MHz to 2450 MHz
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 9 V
• Supply Current: 450 mA
• Package / Case: QFN
• Noise Figure: 3.5 dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 1066886

The 2.4 – 2.5 GHz Reference Circuit is shown for design purposes only. An
evaluation board is not readily available for this application. The reader can
obtain any FP31QF evaluation board and modify it with the circuit shown to
achieve the performance shown in this reference design.
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: [phone] • e-mail: [e-mail] • Web site: www.wj.com, www.TriQuint.com
Circuit Board Material: .014” FR-4 (ε
The main microstrip line has a line impedance of 50 Ω.
4 layers (other layers added for rigidity), .062” total thickness, 1 oz copper
Frequency
S21 – Gain
S11 – Input Return Loss
S22 – Output Return Loss
Output P1dB
Output IP3
Noise Figure
(+18 dBm / tone, 1 MHz spacing)
Drain Bias = +9 V, I
FP31QF
2-Watt HFET
Typical RF Performance
ID=C1
C=22 pF
C2
r
= 4.6),
ds
Reference Design: 2400 – 2500 MHz
MHz
= 450 mA, 25 °C
dBm
dBm
dB
dB
dB
dB
ID=L3
L=3.3 nH
ID=C2
C=1.5 pF
The application circuit is matched for output power.
C3
2400
12.1
-13
-13
+33.5
+46.8
4.6
TLINP
ID=TL1
Z0=50 Ohm
L=150 mil
Eeff=3.46
Loss=0
F0=0 MHz
2500
12.0
-16
-17
ID=C8
C=22 pF
ID=R1
R=5.1 Ohm
ID=C7
C=1000 pF
ID=L1
L=12 nH
Bill of Materials
• The C2 and C3 placements are at silk screen markers, “A” and “2”, 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
Ref. Desig.
C1, C4, C8, C10
C2, C3
C7, C11
C12
L1, L2
L3
R1
R2
Q1
C5, C6
device edge to the component edge.
-10
-15
-20
-25
15
10
-5
5
0
1
2.3
ID=R2
R=51 Ohm
-Vgg
NET="FP31QF"
2
DB(|S[1,1]|)
2.35
Vds=9V @ 450 mA
Specifications and information are subject to change without notice
Value
22 pF
1.5 pF
1000 pF
0.1 μF
12 nH
3.3 nH
5.1 Ω
50 Ω
FP31QF
ID=L2
L=12 nH
TLINP
ID=TL2
Z0=50 Ohm
L=180 mil
Eeff=3.46
Loss=0
F0=0 MHz
Measured S-Parameters
2.4
DB(|S[2,1]|)
Frequency (GHz)
Part style
Chip capacitor
Chip capacitor
Chip capacitor
Chip capacitor
Wirewound chip inductor
Multilayer chip inductor
Chip resistor
Chip resistor
WJ 2W HFET
Do Not Place
2.45
ID=C11
C=1000 pF
ID=C12
C=1e5 pF
ID=C10
C=22 pF
ID=C3
C=1.5 pF
ID=C4
C=22 pF
DB(|S[2,2]|)
2.5
Page 9 of 12 March 2008
2.55
QFN 6x6
Size
0603
0603
0603
1206
0805
0603
0603
0603
2.6