Preliminary Data Sheet1.0 FMS2002QFN ES1
SP3T Reflective pHEMT MMIC Switch
FMS2002QFN ES1
Description
The FMS2002QFN is a linear high power Single-Pole Three-Throw
MMIC Antenna Switch designed for use in Dual-band handsets
GSM900 and GSM1800/1900 combinations. The switch is designed
with one antenna port that can be routed to any one of the three RF
ports.
Features
· Low insertion loss (0.5dB @ 900 MHz)
· Operation down to 2V control
· 3 control lines. Single positive voltage supply
· Low harmonics (Typical -73dBc at Pin=+34.5dBm)
· High Isolation (30 dB @ 900 MHz)
· Filtronic Advanced GaAs pHEMT Technology
Electrical Characteristics (at 25C°, [Vctrl 0,+2.7V], 50 Ohm system, under CW )
Parameter Symbol Condition Min. Typ. Max. Unit
1 0.45 dB
2 0.55 dB
Insertion Loss IL
3 0.5 dB
1 35 dB Isolation –
RF – Ant on.
ISO
2 26 dB
S11 S11 1 -25 dB
S11 S11 2 -18 dB
2fo 3 -74 dBc Harmonics
3fo 3 -73 dBc
Leakage Current - Tx IlkTx 3 2.9 mA
Leakage Current – Rx IlkRx 3 3.2 mA
Condition
1 Small signal, DC – 1GHz, Vctrl = 2.7V/0V
2 Small signal, 1-2 GHz, Vctrl = 2.7V/0V
3 Input power=34.5dBm, EGSM Tx 880-915MHz, Vctrl=2.7V/0V
GaAs MMIC’s are ESD sensitive devices. Special handling precautions are required.
Truth Table
Control Voltage Operation
Vctrl 1 Vctrl 2 Vctrl 3
RF1-Ant HIGH 0 0
RF2-Ant 0 HIGH 0
RF3-Ant 0 0 HIGH
Control values
Control Min Typ. Max Unit
High - 2.7 - V
Low - 0.0 - V
Preliminary specifications subject to change without notice
Filtronic Compound Semiconductors (UK) Contact Details: Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email: sales@filcs.com
(USA) Contact Details: Tel: 001 (408) 988 1845 Fax: 001 (408) 970 9950 Email: sales@filss.com World Website: www.filcs.com
Preliminary Data Sheet1.0 FMS2002QFN ES1
Typical Jig Measurements
Harmonic Rejection vs. Control Voltage
Insertion Loss vs. Frequency
-76
-74
-72
-70
-68
-66
-64
-62
-60
1.7
1.9
2.1
2.3
2.5
2.7
2.9
Control Voltage (V)
Harmonic Rejection (dBc)
2nd Harmonic 3rd Harmonic
Pin = 34.5 dBm @ 900 MHz
0.3 0.8 1.3 1.8 2
Frequency (GHz)
-1
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
Insertion Loss (dB)
Isolation vs. Frequency
0.3 0.8 1.3 1.8 2
Frequency (GHz)
-45
-35
-25
-15
-5
0
Isolation (dB)
Preliminary specifications subject to change without notice
Filtronic Compound Semiconductors (UK) Contact Details: Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email: sales@filcs.com
(USA) Contact Details: Tel: 001 (408) 988 1845 Fax: 001 (408) 970 9950 Email: sales@filss.com World Website: www.filcs.com
Preliminary Data Sheet1.0
Preliminary specifications subject to change without notice
Filtronic Compound Semiconductors (UK) Contact Details: Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email: sales@filcs.com
(USA) Contact Details: Tel: 001 (408) 988 1845 Fax: 001 (408) 970 9950 Email: sales@filss.com World Website: www.filcs.com
FMS2002QFN ES1
SP3T Bonding Configuration
Pad Number Port Symbol Connection on Board*
1 RF input port 1 RF 1 RF1
2 RF input port 2 RF 2 RF3
3 DC Control line 2 Vctrl 2 V3
4 RF input port 3 RF 3 RF2
5 DC Control line 1 Vctrl 1 V1
6 Antenna ANT ANT
7 DC Control line 3 Vctrl 3 V2
* RF4, RF 5, V4 and V5 lines are unused.
Bonding Pad Layout
Pin 2 RF1
Pin 1 V1
Pin
10
RF3 Pin 8
V3Pin 9
Pin 5
RF2
Pin 6
V2
ANT
Pin 11
Pin
12
Pin 2 RF1
Pin 1 V1
Pin
10
RF3 Pin 8
V3Pin 9
Pin 5
RF2
Pin 6
V2
ANT
Pin 11
Pin
12
Suggested Application Board Layout
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