Preliminary Data Sheet
2.1
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
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 0.5µm 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°C,V
cntrl
= 0V/(2.4,3.3V), Z
IN
= Z
OUT
= 50Ω)
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)
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
Preliminary Data Sheet
2.1
FMS2007QFN
Absolute Maximum Ratings:
Parameter
Max Input Power
Control Voltage
Operating Temperature
Storage Temperature
Symbol
Pin
Vctrl
Toper
Tstor
Absolute Maximum
+36dBm
+5V
-40°C to +100°C
-55°C to +150°C
Note:
Exceeding any one of these absolute maximum ratings may cause permanent damage to the
device.
Truth Table:
Switch
State
1
2
3
4
5
6
V1
High
Low
Low
Low
Low
High
V2
Low
High
Low
Low
High
Low
V3
Low
Low
High
Low
Low
High
V4
Low
Low
Low
High
High
Low
RX
ANT1
Insertion Loss
Isolation
Isolation
Isolation
Isolation
Insertion Loss
RX
ANT2
Isolation
Insertion Loss
Isolation
Isolation
Insertion Loss
Isolation
TX
ANT2
Isolation
Isolation
Insertion Loss
Isolation
Isolation
Insertion Loss
TX
ANT1
Isolation
Isolation
Isolation
Insertion Loss
Insertion Loss
Isolation
General Test Conditions:
Bias Voltages
Port Impedances
Off arm termination
LOW = 0V to +0.2V
HIGH +2.5V to +5.0V
50Ω
50Ω
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
Preliminary Data Sheet
2.1
FMS2007QFN
Typical Measured Performance on Evaluation Board (De-Embedded):
(Measurement Conditions V
CTRL
=3V, T
AMBIENT
= 25°C unless otherwise stated)
0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1
-1.1
-1.2
-1.3
-1.4
-1.5
0.5
1
FMS2007QFN INSERTION LOSS
0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
-1
-1.1
-1.2
-1.3
-1.4
-1.5
4.5
FMS2007QFN INSERTION LOSS 802 11a bands
dB
1.5
2
Frequency (GHz)
2.5
3
dB
5
Frequency (GHz)
5.5
6
-20
-25
-30
-35
dB
-40
-45
-50
-55
-60
0.5
FMS2007QFN Tx to Rx ISOLATION
-10
-15
-20
dB
-25
-30
-35
-40
FMS2007 Tx to Rx ISOLATION 802 11a bands
1
1.5
2
Frequency (GHz)
2.5
3
4.5
5
Frequency (GHz)
5.5
6
-10
-15
-20
dB
-25
-30
-35
-40
0.5
1
FMS2007QFN RETURN LOSS
-10
-15
-20
dB
-25
-30
-35
-40
FMS2007QFN RETURN LOSS 802 11a bands
1.5
2
Frequency (GHz)
2.5
3
4.5
5
Frequency (GHz)
5.5
6
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
Preliminary Data Sheet
2.1
FMS2007QFN
Pad Layout:
TX
RF1
RX
GND RF2
Pin Number
1
Description
N/C
V2
V4
ANT1 / RF3
GND
ANT2 / RF4
V1
V3
N/C
RX / RF2
GND
Tx / RF1
GND
Pin 1
12
11
10
9
2
3
4
V2
V4
2
3
4
PADDLE
C1
8
7
V3
V1
5
6
7
8
5
6
9
10
11
ANT1 GND ANT2
RF4
RF3
12
PADDLE
QFN 12 Lead 3*3 Package Outline:
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
Preliminary Data Sheet
2.1
FMS2007QFN
Evaluation Board:
BOM
Label
C1
C1
C1
Component
Capacitor, 100pF, 0603
Capacitor, 47pF, 0402
Preferred evaluation board material is 0.25
mm thick ROGERS RT4350. All RF tracks
should be 50 ohm characteristic
impedance.
Absolute placement of
critical.
surface mount de-coupling capacitors is not
C2
BOARD
C2
C2
C2
C2
C2
C2
C2
C2
C1
C1
Evaluation Board De-Embedding Data (Measured):
0
-0.1
-0.2
-0.3
-0.4
dB
-0.5
-0.6
-0.7
-0.8
-0.9
-1
0.5
1
FMS2007QFN CAL BOARD INSERTION LOSS
-10
-12.5
-15
-17.5
-20
-22.5
dB
-25
-27.5
-30
-32.5
-35
-37.5
-40
FMS2007QFN CAL BOARD RETURN LOSS
1.5
2
2.5
3
3.5
4
Frequency (GHz)
4.5
5
5.5
6
0.5
1
1.5
2
2.5
3
3.5
4
Frequency (GHz)
4.5
5
5.5
6
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
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