Production 3.0
1
Specifications subject to change without notice
Filtronic Compound Semiconductors Ltd
Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email: sales@filcs.com Website: www.filtronic.com
FMS2031-001
10 Watt GaAs Wide Band SPDT Switch
Features:
♦ 3x3x0.9mm Packaged pHEMT Switch
♦ Ideal for WiMax, L, S, and C-band
digital cellular, and WLAN applications
♦ High isolation, 36dB typ at 3.5GHz
♦ Low insertion loss, 0.5dB typ at 2.5GHz
♦ Low insertion loss, 0.96dB typ at 6GHz
♦ P1dB 42dBm at 5GHz
♦ Operates from a single positive voltage
♦ Less than 10µA control current at
35dBm input power
♦ RoHS compliant
ANT
V1
RF1
V2
RF2
Functional Schematic
Description and Applications:
The FMS2031-001 is a 10 Watt, low loss, and single pole dual throw Gallium Arsenide antenna switch. The
die is fabricated using the Filtronic FL05 0.5µm switch process technology, which offers leading edge
performance optimised for switch applications. The FMS2031-001 is designed for use in WiMax, L, S, and C
band wireless applications and WLAN access points where high linearity switching is required.
Absolute Maximum Ratings:
Parameter Symbol Absolute Maximum
Max Input Power Pin +42dBm
Control Voltage V ctrl +6V
Operating Temperature T oper -40°C to +100°C
Storage Temperature T stor -55°C to +150°C
Note: Exceeding any one of these absolute maximum ratings may cause permanent damage to the device.
Truth Table:
Switch
State
VC1
VC2
ANT– RF1
ANT– RF2
(A) HIGH LOW Insertion Loss Isolation
(B) LOW HIGH Isolation Insertion Loss
General Test Conditions:
Note: External DC blocking capacitors are required on all RF ports (typ: 9pF)
All unused ports terminated in 50Ω.
High +2.7V to +6V
Low +0V to +0.2V
Production 3.0
FMS2031-001
2
Specifications subject to change without notice
Filtronic Compound Semiconductors Ltd
Electrical Specifications: (TAMBIENT = 25°C, Vctrl = 0V/2.7V, ZIN = ZOUT = 50Ω)
Parameter Test Conditions Min Typ Max Units
Insertion Loss
2.3 – 2.7 GHz
3.3 – 3.8 GHz
4.9 –5.9 GHz
0.5
0.55
0.9
0.6
0.7
dB
Return Loss
2.3 – 2.7 GHz
3.3 – 3.8 GHz
4.9 –5.9 GHz
27.5
21.5
>tba
dB
Isolation
2.3 – 2.7 GHz
3.3 – 3.8 GHz
4.9 –5.9 GHz
30
30
32.5
35
23
dB
Input power at 0.1dB compression point
2.3 – 2.7 GHz
3.3 – 3.8 GHz
4.9 –5.9 GHz
39.5
38.5
38
dBm
Input power at 0.5dB compression point
2.3 – 2.7 GHz
3.3 – 3.8 GHz
4.9 –5.9 GHz
41
41
41
dBm
EVM (Contribution due to Switch) 35dBm at 5.9GHz (OFDM WLAN 54) ∆ 0.5 %
IP3
+15dBm 1980MHz
+15dBm 1940MHz
65 dB
Switching speed : T rise, T fall
T on, T off
10% to 90% RF and 90% to 10% RF
50% control to 90% RF and 50% control to 10% RF
<300
<800
ns
ns
Control Current +35dBm RF input @0.96GHz <5 10 µA
Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email: sales@filcs.com Website: www.filtronic.com
Production 3.0
Specifications subject to change without notice
Filtronic Compound Semiconductors Ltd
Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email: sales@filcs.com Website: www.filtronic.com
Typical Measured Performance on Evaluation Board (De-Embedded):
(Measurement Conditions VCTRL = 2.7V (high) & 0V (low), TAMBIENT = 25°C unless otherwise stated)
4.03.53.02.52.0
0.0
-0.5
-1.0
-1.5
-2.0
(GHz)
(dB)
Insertion Lo ss vs Freq u e n cy
4.03.53.02.52.0
-20
-25
-30
-35
-40
(GHz)
(dB)
Isolation vs Frequency
4.03.53.02.52.0
0
-10
-20
-30
-40
-50
(GHz)
(dB)
DB(|S(1,1)|)
DB(|S(2,2)|)
Variable
Return Loss vs Frequency
5.04.54.03.53.02.52.01.5
-50
-55
-60
-65
-70
-75
(V)
(dBc)
3rd H armonic Level (0.9 GH z ) vs Co n t ro l Vo lta g e
40.037.535.032.530.027.525.0
2.0
1.5
1.0
0.5
0.0
(dBm)
(dB)
Power Loss* vs Input Power
Power L oss*=(Large Signal L o ss - Small Signal Loss)
3
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Pad Layout:
V1 V2
A
N
T
Specifications subject to change without notice
Filtronic Compound Semiconductors Ltd
4
10
5
3
12
1 2
9
Pin 1
RF1 RF2
11
4
6
7 8
*View from the top of the package
FN 12 Lead 3x3 Package Outline:
Pin Number Description
1 N/C
2 N/C
3 N/C
4RF2
5 N/C
6 N/C
7V2
8ANT RF
9V1
10 N/C
11 N/C
12 RF1
PADDLE GND
PADDLE
Q
Production 3.0
Specifications subject to change without notice
Filtronic Compound Semiconductors Ltd
Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email: sales@filcs.com Website: www.filtronic.com
Evaluation Board:
BOM
Label Component
C3,C4 Capacitor, 470pF, 0603
C1,C2,C7 Capacitor, 9pF, 0402
C5,C6 Capacitor, 47pF, 0402
BOARD
Preferred evaluation board material is 0.25 mm thick
ROGERS RT4350. All RF tracks should be 50 ohm
characteristic impedance.
C7
C6
C5
C1 C2
C3
C4
Evaluation Board De-Embedding Data (Measured):
4.03.53.02.52.0
0.0
-0.5
-1.0
-1.5
-2.0
(GHz)
(dB)
Insertion Loss vs Frequen cy
4.03.53.02.52.0
0
-10
-20
-30
-40
-50
(GHz)
(dB)
D B(|S(1,1)|) : C A LBO A R D_9PF
D B(|S(2,2)|) : C A LBO A R D_9PF
Variable
Ret urn Loss vs Freq u e n c y
5
Production 3.0
Specifications subject to change without notice
Filtronic Compound Semiconductors Ltd
Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email: sales@filcs.com Website: www.filtronic.com
Tape & Reel Specification:
Tape Dimensions Description Symbol Size (mm)
Perforation Diameter D0 1.5 ±0.1
Pitch P0 4.0 ±0.1
Position E1 1.75 ±0.1
Cavity Length A0 3.3 ±0.1
Width B0 3.3 ±0.1
Depth K1.1 ±0.1
Cavity to Perforation
(length direction)
P2 2.0 ±0.1
Distance between centre lines
Cavity to Perforation
(width direction)
F5.5 ±0.1
Carrier tape Width W12 ±0.3
6
Production 3.0
Specifications subject to change without notice
Filtronic Compound Semiconductors Ltd
Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email: sales@filcs.com Website: www.filtronic.com
Preferred Assembly Instructions:
Available on request.
Disclaimers:
This product is not designed for use in any space based or life sustaining/supporting equipment.
Handling Precautions:
To avoid damage to the devices care should be exercised during handling. Proper Electrostatic
Discharge (ESD) precautions should be observed at all stages of storage, handling, assembly, and
testing. These devices should be treated as Class 1A (250-500 V) as defined in JEDEC Standard No.
22-A114. Further information on ESD control measures can be found in MIL-STD-1686 and MIL-
HDBK-263.
Application Notes & Design Data:
Application Notes and design data, including S-parameters, are available on request.
Disclaimers:
This product is not designed for use in any space based or life sustaining/supporting equipment.
Ordering Information:
Part Number Description
FMS2031-001-TR
Packaged Die
Tape & Reel (minimum quantity: 1k pcs)
FMS2031-001-TB Packaged Die supplied in a Tube
FMS2031-001-EB Packaged Die mounted on Evaluation Board
7
