Page 1
ADVANCED INFORMATION
444
GND ANT GND GRX PRXS
BS
PRXON
GND
GND
2V Control Triple-Band GSM/DCS/PCS SP5T Switch SW-
0.5 – 2.0 GHz
Features
• GSM Power Handling with +2.0V Control
Voltage
• Low Power Consumption. Less than 1µA in Rx
mode
• Integrated Decoder
• Leadless 4 x 4 mm FQFP -N, 20 Pin Package
• Low Insertion Loss of 0.6 dB in GSM Transmit
Mode
Description
The M/A-COM SW-444 is a GaAs monolithic
switch in a low cost, FQFP -N, surface mount plastic
package. The SW-444 is ideally suited for
applications where very low power consumption,
high power handling, and low cost are required. The
SW-444 includes an integrated decoder. This switch
is designed for Transmit and Receive switching for
Triple-Band GSM/DCS/PCS Mobile Phones. The
switch offers GSM power handling as low as +2.0
V control voltage. The supply voltage VDD should
be connected to the highest available voltage and
may be unregulated.
The SW-444 is fabricated using a new 0.5-micron
gate length GaAs pHEMT process. The process
features full chip passivation for increased
performance and reliability.
.
Functional Schematic
PTX/DTX
GND
GTX
GND
VDD
Ordering Information
Part Number Description
SW-444TR SW-444 on 1000 Piece Tape and Reel
SW-444TR-3000 SW-444 on 3000 Piece Tape and Reel
SW-444SMB SW-444 Sample Test Board
Decoder
TXS
Rev 1.4
PRX
DRXS
DRX
GND
GND
The Advanced Information Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction.
M/A-COM, Inc.
North America: Tel. (800) 366-2266 ♦ Asia/Pacific: Tel. +81 3 3263-8761 ♦ Europe: Tel. +44 (1344) 869 -595
Fax (800) 618-8883 Fax +81 3 3263-8769 Fax +44 (1344) 300 -020
1
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2V Control Triple-Band GSM/DCS/PCS SP5T Switch SW-444
V1.4
ELECTRICAL CHARACTERISTICS: Test Conditions: VDD = 2.5V, Vctrl =2.0V, T
Mode Specifications Freq. (MHz) Units Min. Typ. Max.
ANT -> GSM RX Insertion Loss 925 - 960 dB 0.74 0.8 0.9
Isolation GSM Tx to ANT
ANT -> PCS RX Insertion Loss 1930 - 1990 dB 0.94 1.0 1.1
Isolation GSM Tx to ANT
ANT -> DCS RX Insertion Loss 1805 - 1880 dB 0.94 1.0 1.1
Isolation GSM Tx to ANT
ANT -> GSM TX Insertion Loss 880 - 915 dB 0.54 0.6 0.7
Isolation GSM Tx to GSM Rx
ANT -> PCS/DCS TX Insertion Loss 1710 - 1785 dB 0.84 0.9 1.0
Isolation GSM Tx to ANT
ANT/PRX/DRX/GRX -> GND
(IDLE MODE)
2nd Harmonics Freq = 900 MHz , Input Power = +34 dBm
3rd Harmonics Freq = 900 MHz, Input Power = +34 dBm
Supply Voltage Volts 2.0 2.5 4.0
High Control Voltages Volts 2.0 2.5 4.0
Low Control Voltages Volts -0.2 0 0.2
Isolation GSM Tx to GSM Rx
Isolation GSM Tx to PCS Rx
Isolation GSM Tx to DCS Rx
Isolation PCS/DCS Tx to ANT
Isolation PCS/DCS Tx to GSM Rx
Isolation PCS/DCS Tx to PCS Rx
Isolation PCS/DCS Tx to DCS Rx
Isolation GSM Tx to GSM Rx
Isolation GSM Tx to PCS Rx
Isolation GSM Tx to DCS Rx
Isolation PCS/DCS Tx to ANT
Isolation PCS/DCS Tx to GSM Rx
Isolation PCS/DCS Tx to PCS Rx
Isolation PCS/DCS Tx to DCS Rx
Isolation GSM Tx to GSM Rx
Isolation GSM Tx to PCS Rx
Isolation GSM Tx to DCS Rx
Isolation PCS/DCS Tx to ANT
Isolation PCS/DCS Tx to GSM Rx
Isolation PCS/DCS Tx to PCS Rx
Isolation PCS/DCS Tx to DCS Rx
Isolation GSM Tx to PCS Rx
Isolation GSM Tx to DCS Rx
Isolation PCS/DCS Tx to ANT
Isolation PCS/DCS Tx to GSM Rx
Isolation PCS/DCS Tx to PCS Rx
Isolation PCS/DCS Tx to DCS Rx
Isolation GSM Tx to GSM Rx
Isolation GSM Tx to PCS Rx
Isolation GSM Tx to DCS Rx
Isolation PCS/DCS Tx to GSM Rx
Isolation PCS/DCS Tx to PCS Rx
Isolation PCS/DCS Tx to DCS Rx
Isolation GSM Tx to ANT , FREQ = 900 MHz
Isolation PCS/DCS Tx to ANT , FREQ = 1810 MHz
Freq = 1810 MHz, Input Power = +32 dBm
Freq = 1810 MHz, Input Power = +32 dBm
880 - 915
880 - 915
880 - 915
880 - 915
1710 - 1785
1710 - 1785
1710 - 1785
1710 - 1785
880 - 915
880 - 915
880 - 915
880 - 915
1710 - 1785
1710 - 1785
1710 - 1785
1710 - 1785
880 - 915
880 - 915
880 - 915
880 - 915
1710 - 1785
1710 - 1785
1710 - 1785
1710 - 1785
880 - 915
880 - 915
880 - 915
1710 - 1785
1710 - 1785
1710 - 1785
1710 - 1785
880 - 915
880 - 915
880 - 915
880 - 915
1710 - 1785
1710 - 1785
1710 - 1785
925 – 960
925 - 960
dBc
dBc
= +25 °C
A
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBc
dBc
25
26
32
32
22
23
32
32
25
32
26
32
22
32
23
32
25
32
32
26
22
32
32
23
29
31
32
22
32
32
32
25
32
32
32
23
32
31
34
34
-84
-84
-73
-73
27
28
>35
>35
24
25
>35
>35
27
>35
28
>35
24
>35
25
>35
27
>35
>35
28
24
>35
>35
25
31
33
34
24
>35
>35
>35
27
>35
>35
>35
25
34
33
34
34
-79
-79
-69
-69
30
30
52
64
26
27
43
54
29
55
30
52
26
42
27
42
29
56
60
30
26
44
51
27
33
35
36
26
44
59
59
29
55
60
64
27
36
35
34
34
-70
-65
-65
-65
1. DC blocking capacitors are required on all RF and shunt ports.
2. All impedances are 50 ohms.
The Advanced Information Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction.
M/A-COM, Inc.
North America: Tel. (800) 366-2266 ♦ Asia/Pacific: Tel. +81 3 3263-8761 ♦ Europe: Tel. +44 (1344) 869 -595
Fax (800) 618-8883 Fax +81 3 3263-8769 Fax +44 (1344) 300 -020
2
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2V Control Triple-Band GSM/DCS/PCS SP5T Switch SW -444
GND ANT GND GRX PRXS
BS TXS PRXON
GND
GND
V1.4
Pin Configuration
Pin No. Pin Name Description
1 PTX/DTX PCS/DCS Tx Port
2 GND RF Ground
3 GTX GSM Tx Port
4 GND RF Ground
5 VDD Decoder VDD
6 BS Control 1
7 TXS Control 2
8 PRXON Control 3
9 GND RF Ground
10 GND RF Ground
11 GND RF Ground
12 GND RF Ground
13 DRX DCS Rx Port
14 DRXS DCS Rx Shunt
15 PRX PCS Rx Port
16 PRXS PCS Rx Shunt
17 GRX GSM Rx Port
18 GND RF Ground
19 ANT ANT Port
20 GND RF Ground
21 GND Paddle
Truth Table
BS TXS PRXON MODE
0 0 0 GSM RX - ANT
0 1 0 GSM TX - ANT
1 1 0 PCS TX/DCS TX - ANT
1 0 0 DCS RX - ANT
1 0 1 PCS RX - ANT
Logic Level Voltage Level
VLo “0”= 0V
VHi “1”= 2.5V
Block Diagram
PTX/DTX
GND
GTX
GND
VDD
Decoder
PRX
DRXS
DRX
GND
GND
The Advanced Information Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction.
M/A-COM, Inc.
North America: Tel. (800) 366-2266 ♦ Asia/Pacific: Tel. +81 3 3263-8761 ♦ Europe: Tel. +44 (1344) 869 -595
Fax (800) 618-8883 Fax +81 3 3263-8769 Fax +44 (1344) 300 -020
3
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2V Control Triple-Band GSM/DCS/PCS SP5T Switch SW -444
C1 C2 C3 C4 C5 C7 C8 BS C6
V1.4
Sample Board Schematic
PTX/DTX
GTX
ANT
GRX
PRX
DRX
Decoder
VDD
TXS PRXON
External Circuitry Parts List (Note: Values of external elements not final)
Ref. Designation Value Purpose
C1 22pF DC Block
C2 22pF DC Block
C3 22pF DC Block
C4 4.7pF RF Shunt
C5 22pF DC Block
C6 4.7pF RF Shunt
C7 22pF DC Block
C8 22pF DC Block
The Advanced Information Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction.
M/A-COM, Inc.
North America: Tel. (800) 366-2266 ♦ Asia/Pacific: Tel. +81 3 3263-8761 ♦ Europe: Tel. +44 (1344) 869 -595
Fax (800) 618-8883 Fax +81 3 3263-8769 Fax +44 (1344) 300 -020
4
Page 5
2V Control Triple-Band GSM/DCS/PCS SP5T Switch SW -444
V1.4
4 mm FQFP-N, 20-Lead
D
D1
A
A2
A3
A1
E E1
20 x b
D2
e
4 x e
E2
L
e
4 x e
Measur ement (mm) Dimension
Min. Nom. Max.
A
A1
A2
A3
b
D
D1
D2
e
E
E1
E2
L
0.80
0
0
0.18
0.75
0.75
0.35
0.90
0.02
0.65
0.25 ref.
0.23
4.00 basic
3.75 basic
1.70
0.50 basic
4.00 basic
3.75 basic
1.70
0.55
1.00
0.05
1.00
0.30
2.25
2.25
0.75
Note: See JEDEC MO -220A VGGD-1 for additional dimensional and
tolerance information
M/A-COM, Inc.
North America: Tel. (800) 366-2266 ♦ Asia/Pacific: Tel. +81 3 3263-8761 ♦ Europe: Tel. +44 (1344) 869 -595
Fax (800) 618-8883 Fax +81 3 3263-8769 Fax +44 (1344) 300 -020
The Advanced Information Data Sheet Contains Typical Electrical Specifications Which May Change Prior to Final Introduction.
5
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