Advanced Product Information
1.2
1
Preliminary specifications subject to change without notice
Filtronic Compound Semiconductors Ltd
Contact Details (UK): Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email: sales@filcs.com
Contact Details (USA): Tel: +1 (408) 850 5790 Fax: +1 (408) 850 5766 Email:
sales@filss.com
Website: www.filcs.com
FMS2018
SP7T GaAs Multi-Band GSM – UMTS Antenna Switch
Features:
Available in die form
Suitable for multi-band GSM/DCS/PCS/
EDGE and UMTS applications
Excellent low control voltage performance
Excellent harmonic performance under
GSM/DCS/PCS power levels
Very high Tx-Rx isolation >35dB typ. at
1.8GHz
Very high Tx-Tx isolation >30dB typ. at
1.8GHz
Very low Tx Insertion loss
Very low control current
Functional Schematic
Description and Applications:
The FMS2018 is a low loss, high power and linear single pole seven throw Gallium Arsenide antenna
switch designed for use in mobile handset applications. The die is fabricated using the Filtronic FL05
0.5
μ
m switch process technology which offers leading edge performance optimised for switch
applications. The FMS2018 is designed for use in dual/tri and quad-band GSM handset antenna
switch modules and RF front-end modules.
Electrical Specifications:
(T
AMBIENT
= 25°C,V
control
= 0V/2.5V, Z
IN
= Z
OUT
= 50
)
Parameter
Test Conditions
Min
Typ
Max
Units
Tx Insertion Loss
0.5 – 1.0 GHz
1.0 – 2.0 GHz
0.5
0.6
dB
dB
Rx Insertion Loss
0.5 – 1.0 GHz
1.0 – 2.0 GHz
0.6
0.8
dB
dB
Return Loss
0.5 – 2.5 GHz
20
dB
Isolation
TX-RX
0.5 – 1.0 GHz
1.0 – 2.0 GHz
40
35
dB
dB
Isolation
TX-TX
0.5 – 1.0 GHz
1.0 – 2.0 GHz
33
30
dB
dB
2nd Harmonic Level
1 GHz, Pin = +35 dBm, 100% Duty Cycle
2 GHz, Pin = +33 dBm, 100% Duty Cycle
-75
-75
dBc
dBc
3rd Harmonic Level
1 GHz, Pin = +35 dBm, 100% Duty Cycle
2 GHz, Pin = +33 dBm, 100% Duty Cycle
-75
-75
dBc
dBc
Switching speed : Trise, Tfall
Ton, Toff
10% to 90% RF and 90% to 10% RF
50% control to 90% RF and 50% control to 10% RF
< 0.3
< 1.0
μ
s
μ
s
Note:
External DC blocking capacitors are required on all RF ports (typ: 100pF)
ANT
TX3
VTX3
RX1
RX2
RX3
RX4
VRX1
VRX2
VRX3
VRX4
VRXC
TX1
VTX1
TX2
VTX2