Preliminary Data Sheet

2.2

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

Website: www.filtronic.co.uk/semis

FMS2020QFN

GaAs Multi-Purpose Wide Band SPDT Switch

Features:

♦ 3x3x0.9mm Packaged pHEMT Switch

♦ Suitable for L, S, and C-band digital

cellular, cordless telephony and WLAN

applications

♦ High isolation, 25dB typ at 2.5GHz

♦ Low insertion loss, 0.5dB typ at 2.5GHz

♦ Low insertion loss, 1.0dB typ at 6GHz

♦ P0.1dB > 38dBm at 2GHz

Functional Schematic

Description and Applications:

The FMS2020QFN is a low loss, high power and linear single pole dual throw Gallium Arsenide antenna

switch. The die is fabricated using the Filtronic FL05 0.5

µm switch process technology, which offers leading

edge performance optimised for switch applications. The FMS2020QFN is designed for use in L, S, and C

band wireless applications and WLAN access points where high linearity switching is required.

Parameter

Test Conditions

Min

Typ

Max

Units

Insertion Loss

0.5 – 1.0 GHz

1.0 – 2.0 GHz

2.0 – 3.0 GHz

3.0 – 4.0 GHz

4.0 – 5.0 GHz

5.0 –6.0 GHz

0.4

0.45

0.55

0.65

0.75

0.95

dB

dB

dB

dB

dB

dB

Return Loss

0.5 – 2.5 GHz

2.5 – 5.0 GHz

23

18

dB

dB

Isolation

0.5 – 1.0 GHz

1.0 – 2.5 GHz

2.5 – 6.0 GHz

30

25

18

dB

dB

dB

Input power at 0.1dB compression point

1.0 GHz

2.0 GHz

2.5 GHz

6.0 GHz

>38

>38

>37

>33

dBm

dBm

dBm

dBm

2nd Harmonic Level

1 GHz, Pin = +35 dBm, 100% Duty Cycle

<-70

dBc

3rd Harmonic Level

1 GHz, Pin = +35 dBm, 100% Duty Cycle

<-70

dBc

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

<0.3

<1.0

µs

µs

Control Current

+35dBm RF input @1GHz

<10

µA

Note: External DC blocking capacitors are required on all RF ports (typ: 100pF)

All unused ports terminated in 50

Ω.

ANT

V1

RF1

V2

RF2