Preliminary Data Sheet1.0
FMS2002QFN ES1
SP3T Reflective pHEMT MMIC Switch
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
Sꢀ Low insertion loss (0.5dB @ 900 MHz)
Sꢀ Operation down to 2V control
Sꢀ 3 control lines. Single positive voltage supply
Sꢀ Low harmonics (Typical -73dBc at Pin=+34.5dBm)
Sꢀ High Isolation (30 dB @ 900 MHz)
Sꢀ Filtronic Advanced GaAs pHEMT Technology
Electrical Characteristics (at 25CL, [Vctrl 0,+2.7V], 50 Ohm system, under CW )
Parameter
Symbol Condition
Min.
Typ.
0.45
0.55
0.5
35
Max.
Unit
dB
Insertion Loss
IL
1
2
3
1
2
1
2
3
3
3
3
dB
dB
Isolation –
RF – Ant on.
S11
ISO
dB
26
dB
S11
S11
2fo
-25
-18
-74
-73
2.9
3.2
dB
S11
dB
Harmonics
dBc
dBc
ꢀA
3fo
Leakage Current - Tx
Leakage Current – Rx
Condition
IlkTx
IlkRx
ꢀA
1
2
3
Small signal, DC – 1GHz, Vctrl = 2.7V/0V
Small signal, 1-2 GHz, Vctrl = 2.7V/0V
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
Operation
Control Voltage
Vctrl 1
Vctrl 2
Vctrl 3
RF1-Ant
RF2-Ant
RF3-Ant
HIGH
0
0
0
0
HIGH
0
0
HIGH
Control values
Control
High
Min
Typ.
2.7
Max
Unit
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