Preliminary Data Sheet
1.0
FMS2001 ES1
Low Loss SPDT Reflective pHEMT MMIC Switch
FMS2001 ES1
Description
The FMS2001 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 -68dBc at Pin=+34.5dBm)
High Isolation (30 dB @ 900 MHz)
Filtronic Advanced GaAs pHEMT Technology
Electrical Characteristics
(at 25C
, [V
ctrl
0,+2.7V], 50 Ohm system, under CW )
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
1
0.5
dB
2
0.6
dB
Insertion Loss
IL
3
0.6
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
-68
dBc
Leakage Current - Tx
I
lkTx
3
1.7
mA
Leakage Current Rx
I
lkRx
3
1.8
mA
Condition
1
Small signal, DC 1GHz, Vctrl = 2.7V/0V
2
Small signal, 1-2 GHz, Vctrl = 2.7V/0V
3
Input power=34.5dBm, EGSM Tx 880-915MHz, Vctrl=2.7V/0V
GaAs MMIC's are ESD sensitive devices. Special handling precautions are required.
Truth Table
Control Voltage
Operation
Vctrl 1
Vctrl 2
RF1-Ant High
Low
RF2-Ant Low
High
Control Levels
Control
Min
Typ.
Max
Unit
High
2.7
V
Low
0
V
Preliminary specifications subject to change without notice
Filtronic Compound Semiconductors Ltd, Heighington Lane Business Park, Newton Aycliffe, Co Durham. DL5 6JW.
Contact Details: Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email:
sales@filcs.com
Website:
www.filcs.com
Preliminary Data Sheet
1.0
subject to change without notice
miconductors Ltd, Heighington Lane Business Park, Newton Aycliffe, Co Durham. DL5 6JW.
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
)
Filtronic Compound Se
Contact Details: Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email:
sales@filcs.com
Website:
www.filcs.com
FMS2001 ES1
Typical Jig Measurements
Harmonic Rejection vs. Control Voltage
-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)
Ha
r
m
onic
Re
je
c
t
ion (dBc
)
2nd Harmonic
3rd Harmonic
Pin = 34.5 dBm @ 900 MHz
Insertion Loss vs. Frequency
Isolation vs. Frequency
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
s
e
r
t
i
o
n Los
s
(
d
B
)
Preliminary specifications
Preliminary Data Sheet
1.0
FMS2001 ES1
SPDT Bonding Configuration
Pad Number
Port
Symbol
Connection on Board*
1
RF input port1
RF 1
RF1
2
RF input port 2
RF 2
RF2
3
DC Control line 1
Vctrl 1
V1
4 Antenna
ANT
ANT
5
DC Control line 2
Vctrl 2
V2
*
RF 3, RF4, RF 5, V3, V4, lines are unused.
0.00
m
52 m (x)
640
m
(y)
SPDT
SPDT F1
1
2
4
3
5
528 m (x)
52 m (x)
200
m
(y)
640
m
(y)
420
m
(y)
200
m
(y)
528 m (x)
0.00
m
52 m (x)
640
m
(y)
F1
1
2
4
3
5
528 m (x)
52 m (x)
200
m
(y)
640
m
(y)
420
m
(y)
200
m
(y)
528 m (x)
Bonding Pad Diagram
0603 100pF surface mount ceramic capacitors
0603 100pF surface mount ceramic capacitors
PCB material: FR4
All transmission lines 50 ohm
90 deg SMA connectors
90 deg SMA connectors
90 deg SMA connector
90 deg SMA connector
0603 100pF surface mount ceramic capacitors
0603 100pF surface mount ceramic capacitors
PCB material: FR4
All transmission lines 50 ohm
90 deg SMA connectors
90 deg SMA connectors
90 deg SMA connector
90 deg SMA connector
Suggested Application Board Layout
Generic SPDT, 3T and 4T Evaluation Board Layout
Preliminary specifications
Filtronic Compound Se
Contact Details: Tel: +44 (
subject to change without notice
miconductors Ltd, Heighington Lane Business Park, Newton Aycliffe, Co Durham. DL5 6JW.
0) 1325 301111 Fax: +44 (0) 1325 306177 Email:
sales@filcs.com
Website:
www.filcs.com
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