Preliminary Data Sheet
2.1
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@filcsi.com
Website: www.filtronic.co.uk/semis
FMS2007QFN
DC-6GHz DPDT Diversity Switch
Features:
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
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
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:
(T
AMBIENT
= 25C,V
cntrl
= 0V/(2.4,3.3V), Z
IN
= Z
OUT
= 50
)
Parameter
Simulated Conditions
Min
Typ
Max
Units
Insertion
Loss
2.4GHz
0.9 dB
Insertion
Loss
6GHz
1.15
dB
Return
Loss
2.4GHz
18 dB
Return
Loss
6GHz
15 dB
Tx-Rx
Isolation
2.4GHz
-37 dB
Tx-Rx
Isolation
6GHz
-25 dB
2nd Harmonic Level
2.4, 6 GHz, Pin = 20dBm, Vctrl = 2.4V
-70
dBc
3rd Harmonic Level
2.4, 6 GHz, Pin = 20dBm, Vctrl =2.4V
-70
dBc
Switching speed
Vctrl=2.4V, Pin=20dBm
30
nS
Note: External DC blocking capacitors are required on all RF ports (typ: 47pF)
Functional Schematic
V4
TX / RF1
V3
ANT1
RF3
ANT2
RF4
V1
RX / RF2
V2
Preliminary Data Sheet
2.1
2
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
FMS2007QFN
Absolute Maximum Ratings:
Parameter
Symbol
Absolute Maximum
Max Input Power
Pin
+36dBm
Control Voltage
Vctrl
+5V
Operating Temperature
Toper
-40C to +100C
Storage Temperature
Tstor
-55C to +150C
Note: Exceeding any one of these absolute maximum ratings may cause permanent damage to the
device.
Truth Table:
Switch
State
V1
V2
V3
V4
RX
ANT1
RX
ANT2
TX
ANT2
TX
ANT1
1 High Low Low Low
Insertion Loss
Isolation Isolation Isolation
2 Low
High
Low
Low
Isolation
Insertion Loss
Isolation Isolation
3 Low Low High Low
Isolation
Isolation
Insertion Loss
Isolation
4
Low
Low
Low
High Isolation Isolation Isolation
Insertion Loss
5 Low High Low High
Isolation
Insertion Loss
Isolation
Insertion Loss
6 High Low High Low
Insertion Loss
Isolation
Insertion Loss
Isolation
General Test Conditions:
Bias Voltages
LOW = 0V to +0.2V
HIGH +2.5V to +5.0V
Port Impedances
50
Off arm termination
50
Preliminary Data Sheet
2.1
3
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
FMS2007QFN
0.5
1
1.5
2
2.5
3
Frequency (GHz)
FMS2007QFN RETURN LOSS
-40
-35
-30
-25
-20
-15
-10
dB
0.5
1
1.5
2
2.5
3
Frequency (GHz)
FMS2007QFN Tx to Rx ISOLATION
-60
-55
-50
-45
-40
-35
-30
-25
-20
dB
0.5
1
1.5
2
2.5
3
Frequency (GHz)
FMS2007QFN INSERTION LOSS
-1.5
-1.4
-1.3
-1.2
-1.1
-1
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
dB
4.5
5
5.5
6
Frequency (GHz)
FMS2007QFN INSERTION LOSS 802 11a bands
-1.5
-1.4
-1.3
-1.2
-1.1
-1
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
dB
4.5
5
5.5
6
Frequency (GHz)
FMS2007 Tx to Rx ISOLATION 802 11a bands
-40
-35
-30
-25
-20
-15
-10
dB
4.5
5
5.5
6
Frequency (GHz)
FMS2007QFN RETURN LOSS 802 11a bands
-40
-35
-30
-25
-20
-15
-10
dB
Typical Measured Performance on Evaluation Board (De-Embedded):
(Measurement Conditions V
CTRL
=3V, T
AMBIENT
= 25C unless otherwise stated)
Preliminary Data Sheet
2.1
4
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
FMS2007QFN
Pad Layout:
QFN 12 Lead 3*3 Package Outline:
Pin Number
Description
1 N/C
2 V2
3 V4
4
ANT1 / RF3
5 GND
6
ANT2 / RF4
7 V1
8 V3
9 N/C
10
RX / RF2
11 GND
12
Tx / RF1
PADDLE GND
PADDLE
6
3
4
5
12
Pin 1
V3
TX
RF1
2
7
9
10
11
V4
V2
V1
RX
RF2
ANT2
RF4
ANT1
RF3
GND
GND
8
C1
Preliminary Data Sheet
2.1
5
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
FMS2007QFN
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
Frequency (GHz)
FMS2007QFN CAL BOARD INSERTION LOSS
-1
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
dB
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
Frequency (GHz)
FMS2007QFN CAL BOARD RETURN LOSS
-40
-37.5
-35
-32.5
-30
-27.5
-25
-22.5
-20
-17.5
-15
-12.5
-10
dB
Evaluation Board:
Evaluation Board De-Embedding Data (Measured):
BOM
Label
Component
C1
Capacitor, 100pF, 0603
C2 Capacitor,
47pF,
0402
BOARD
Preferred evaluation board material is 0.25
mm thick ROGERS RT4350. All RF tracks
should be 50 ohm characteristic
impedance. Absolute placement of
surface mount de-coupling capacitors is not
critical.
C2
C2
C2
C2
C2
C2
C2
C1
C1
C1
C1
C2
Preliminary Data Sheet
2.2
6
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
FMS2007QFN
Ordering Information:
Part Number
Description
FMS2007-001 Packaged
Die
FMS2007-001-EB
Packaged die mounted on evaluation board
Handling Precautions:
To avoid damage to the devices care should be exercised during handling. Proper Electrostatic
Discharge (ESD) precautions should be observed at all stages of storage, handling, assembly, and
testing. These devices should be treated as Class 1A (0-500V). Further information on ESD control
measures can be found in MIL-STD-1686 and MIL-HDBK-263.
Preferred Assembly Instructions:
Please refer to FCSL applications note: FAN 003 (handling and assembly of Filtronic QFN devices)
Disclaimers:
This product is not designed for use in any space based or life sustaining/supporting equipment.
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