Preliminary Data Sheet
2.2
SPDT Reflective pHEMT MMIC Switch
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.com
FMS2001QFN
Description
The FMS2001QFN is a low loss linear Single-Pole Double-Throw Antenna Switch
designed for use in mobile handset applications. The switch is designed with one antenna
port that can be routed to any one of the two RF ports.
Features
Low insertion loss (0.6dB @ 900 MHz)
Operation down to 2V control
2 control lines. Single positive voltage supply
Low harmonics (Typical -70dBc at Pin=+34.5dBm)
High Isolation (30 dB @ 900 MHz)
Low cost QFN 12 lead 3*3 package
Filtronic Advanced GaAs 0.5 m pHEMT Technology
Electrical Characteristics
(at 25C
, [Vc 0,+2.7V], 50
system, CW )
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
1
0.5
dB
2
0.6
dB
Insertion Loss
IL
3
0.5
dB
1
35
dB
Isolation
RF Ant on.
ISO
2
25
dB
S11 S11
1
-23
dB
S11 S11
2
-15
dB
2fo 3
-70
dBc
Harmonics
3fo 3
-70
dBc
Leakage Current - Tx
I
lkTx
3
2
A
Leakage Current Rx
I
lkRx
3 2
A
Condition
1
Small signal, DC 1GHz, Vc = 2.7V/0V
2
Small signal, 1-2 GHz, Vc = 2.7V/0V
3
Input power=34.5dBm, EGSM Tx 880-915MHz, Vc=2.7V/0V
GaAs MMIC's are ESD sensitive devices. Special handling precautions are required.
Truth Table
Control Voltage
Operation
V 1
V 2
RF1-ANT HIGH
0
RF2-ANT 0
HIGH
Control Levels
Control
Typ.
HIGH
+2.7 to +5.0V
LOW
0.0 to +0.2V
Preliminary Data Sheet
2.2
SPDT Reflective pHEMT MMIC Switch
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.com
FMS2001QFN
Typical Jig Measurements
Harmonic Rejection vs. Control Voltage
Insertion Loss vs. Frequency
Isolation vs. Frequency
0.3
0.8
1.3
1.8
2
Frequency (GHz)
-45
-35
-25
-15
-5
0
I
s
ol
at
i
on (
d
B
)
-80
-78
-76
-74
-72
-70
-68
-66
-64
-62
-60
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3
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
I
n
se
r
t
i
o
n
L
o
s
s (
d
B
)
Preliminary Data Sheet
2.2
SPDT Reflective pHEMT MMIC Switch
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.com
FMS2001QFN
Pin out Diagram (top view)
DC BLOCKING CAPACITORS ARE REQUIRED ON ALL RF LINES
Pin 1
RF1
V2
RF2
ANT
V1
2
3
4
5
6
7
8
9
10
11
12
Preliminary Data Sheet
2.2
SPDT Reflective pHEMT MMIC Switch
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.com
FMS2001QFN
QFN 12 LEAD 3*3 PACKAGE OUTLINE
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