Preliminary Data Sheet
1.0
FMS2003 ES1
SP4T Reflective pHEMT MMIC Switch
FMS2003 ES1
Description
The FMS2003 is a linear high power Single-Pole Four-Throw
MMIC Antenna Switch designed for use in Dual-band
handsets GSM900 and GSM1800/1900 combinations. The
switch is designed with one antenna port that can be routed
to any one of the four RF ports
.
Features
Low insertion loss (0.5 dB @ 900 MHz)
Operation down to 2V
4 control lines. Single positive voltage supply
Low harmonics (Typical -67dBc 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 Ant on.
ISO
2
26
dB
S11
S11
1
-25
dB
S11
S11
2
-25
dB
2fo 3
-78
dBc
Harmonics
3fo 3
-72
dBc
Leakage Current - Tx
I
lkTx
3
3.2 mA
Leakage Current Rx
I
lkRx
3
3.4 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
Vctrl 3
Vctrl 4
RF1-Ant
High Low Low Low
RF2-Ant Low
High Low
Low
RF3-Ant Low
Low
High Low
RF4-Ant
Low Low Low High
Control values
Control
Min
Typ.
Max
Unit
High
2.7
V
Low
0.0
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
Preliminary specifications s
Filtronic Compound Semic
Contact Details: Tel: +44 (0) 1325 301111 Fax: +44 (0) 1325 306177 Email:
sales@filcs.com
ubject to change without notice
onductors 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
)
Frequency (GHz)
Website:
www.filcs.com
FMS2003 ES1
Typical Jig Measurements
Harmonic Rejection vs. Control Voltage
-80
-75
-70
-65
-60
-55
-50
1.
7
1.
8
1.
9
2
2.
1
2.
2
2.
3
2.
4
2.
5
2.
6
2.
7
2.
8
2.
9
3
Control Voltage (V)
H
a
rm
oni
c R
e
j
ecti
on (dB
c
)
2nd Harmonic
3rd Harmonic
Pin = 34.5 dBm @ 900 MHz
Insertion Loss vs. Frequency
0.3
0.8
1.3
1.8
2
-1
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
I
n
ser
t
i
o
n
L
o
ss (
d
B
)
Isolation vs. Frequency
Preliminary Data Sheet
1.0
FMS2003 ES1
SP4T Bonding Configuration
Pad Number
Port
Symbol
Connection on Board
1
RF input port 1
RF 1
RF4
2
DC Control line 1
Vctrl 1
V1
3 Antenna*
ANT
ANT
4
DC Control line 3
Vctrl 3
V2
5
RF input port 3
RF 3
RF5
6
RF input port 2
RF 2
RF1
7
DC Control line 2
Vctrl 2
V4
8 Antenna*
ANT
RF3*
9
DC Control line 4
Vctrl 4
V3
10
RF input port 4
RF 4
RF2
* Either or both of the antenna pads can be bonded. They are electrically the same.
Bonding Pad Layout
0.00 m
SP4T F1
5
4
2
3
1
6
7
8
9
10
561.9 m (x)
694.5
m
(y)
217.78 m (x)
706.75
m
(y)
455 m (x)
706.75
m
(y)
692.22 m (x)
706.75
m
(y)
853.81 m (x)
694.5
m
(y)
133.25
m
(y)
133.25
m
(y)
133.25
m
(y)
145.5
m
(y)
145.5
m
(y)
561.9 m (x)
217.78 m (x)
455 m (x)
692.22 m (x)
853.81 m (x)
SP4T F1
SP4T F1
5
4
2
3
1
6
7
8
9
10
561.9 m (x)
694.5
m
(y)
217.78 m (x)
706.75
m
(y)
455 m (x)
706.75
m
(y)
692.22 m (x)
706.75
m
(y)
853.81 m (x)
694.5
m
(y)
133.25
m
(y)
133.25
m
(y)
133.25
m
(y)
145.5
m
(y)
145.5
m
(y)
561.9 m (x)
217.78 m (x)
455 m (x)
692.22 m (x)
853.81 m (x)
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
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
FMS2003 ES1
Suggested Application Board Layout
0603 100pF surface mount ceramic capacitors
0603 100pF surface mount ceramic capacitors
PCB material: FR4
All TX 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 TX lines 50 ohm
90 deg SMA connectors
90 deg SMA connectors
90 deg SMA connector
90 deg SMA connector
Generic SPDT, 3T and 4T Evaluation Board Layout
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