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3x3x0.9mm Packaged pHEMT Switch
Very High Tx-Rx isolation
Suitable for WLAN 802.11a and 802.11b/g
Applications
Filtronic Advanced GaAs pHEMT
Technology
Low Insertion Loss
Excellent low control voltage performance
Functional Schematic
V4
TX / RF1
V3
ANT1
RF3
ANT2
RF4
V1
RX / RF2
V2
Description and Applications:
The FMS2007QFN is a low loss linear Double-Pole Double-Throw dual band diversity switch
designed for use in WLAN applications. The die is fabricated using the Filtronic FL05 0.5碌m switch
process technology, which offers leading edge performance optimised for switch applications. Typical
applications are for UNII, Hiperlan, 802.11a and 802.11b/g systems that employ two antennas for
transmit and receive diversity.
Electrical Specifications:
Parameter
Insertion Loss
Insertion Loss
Return Loss
Return Loss
Tx-Rx Isolation
Tx-Rx Isolation
2nd Harmonic Level
3rd Harmonic Level
Switching speed
(T
AMBIENT
= 25擄C,V
cntrl
= 0V/(2.4,3.3V), Z
IN
= Z
OUT
= 50鈩?
Simulated Conditions
2.4GHz
6GHz
2.4GHz
6GHz
2.4GHz
6GHz
2.4, 6 GHz, Pin = 20dBm, Vctrl = 2.4V
2.4, 6 GHz, Pin = 20dBm, Vctrl =2.4V
Vctrl=2.4V, Pin=20dBm
Min
Typ
0.9
1.15
18
15
-37
-25
-70
-70
30
Max
Units
dB
dB
dB
dB
dB
dB
dBc
dBc
nS
Note:
External DC blocking capacitors are required on all RF ports (typ: 47pF)
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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@filcsi.com
Website: www.filtronic.co.uk/semis
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