GaAs SP4T 2.5V High Power Switch
DC - 3 GHz
Preliminary
Jan 16 2002
MASWSS0020
Features
•
•
•
•
•
•
Low Voltage Operation 2.5V
Low Harmonics > 65 dBc at +34 dBm & 1 GHz
Low Insertion Loss 0.6 dB at 1 GHz
High Isolation 23 dB at 2 GHz
Miniature FQFP 16-lead 4x4mm Package
0.5 micron GaAs pHEMT Process
Functional Schematic
GND
PIN 16
PIN 1
V1
RF1
39 pF
GND
ANT
39 pF
V4
RF4
39 pF
Description
M/A-COM’s MASWSS0020 is a GaAs PHEMT MMIC
single pole four throw (SP4T) high power switch in a low
cost miniature FQFP 16-lead 4x4mm package. The
MASWSS0020 is ideally suited for applications where high
power, low control voltage, low insertion loss, high isola-
tion, small size and low cost are required. Typical applica-
tions are for GSM and DCS handset systems that connect
separate transmit and receive functions to a common an-
tenna, as well as other handset and related applications.
This part can be used in all systems operating up to 3 GHz
requiring high power at low control voltage.
The MASWSS0020 is fabricated using a 0.5 micron gate
length GaAs PHEMT process. The process features full
passivation for performance and reliability.
GND
GND
RF3
39 pF
GND
RF2
39 pF
GND
Pin Configuration
PIN
No.
1
2
PIN Name
V1
RF1
GND
RF2
GND
V2
V3
GND
RF3
GND
GND
RF4
GND
V4
GND
ANT
GND (paddle)
Description
Control 1
RF Port 1
RF Ground
RF Port 2
RF Ground
Control 2
Control 3
RF Ground
RF Port 3
RF Ground
RF Ground
RF Port 4
RF Ground
Control 4
RF Ground
Antenna Port
RF Ground
Absolute Maximum Ratings
Parameter
Max Input Power (0.5 - 3 GHz,
2.5V Control)
Operating Voltage
Operating Temperature
Storage Temperature
1
3
4
5
6
7
Absolute
Maximum
+38 dBm
+8.5 volts
-40 C to +85 C
-65
o
C to +150
o
C
o
o
8
9
10
11
1. Exceeding any one or combination of these limits may
cause permanent damage.
12
13
14
15
16
17
GND
V2
V3
GaAs SP4T 2.5V High Power Switch
Electrical Specifications: T
A
= 25°C, Z
0
= 50Ω
2
Parameter
Insertion Loss
Test Conditions
DC – 1 GHz
1 – 2 GHz
2 - 3 GHz
DC – 1 GHz
1 – 2 GHz
2 - 3 GHz
DC – 3 GHz
Two Tone +10dBm, 5 MHz Spacing, > 50 MHz
Vc = 0V/2.5V
Vc = 0V/2.5V
1 GHz, P
IN
= +34 dBm, Vc = 0V/2.5V
1 GHz, P
IN
= +34 dBm, Vc = 0V/2.5V
50% control to 90% RF, and 50% control to 10% RF
50 - 350 MHz
Units
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBc
dBc
65
65
25
21
Min.
MASWSS0020
V 1.00
Typ.
0.6
0.8
1.0
29
23
18.5
20
57
38
Max.
0.8
1.0
Isolation
Return Loss
IP3
P1dB
2
nd
Harmonic
3
rd
Harmonic
Trise, Tfall
Ton, Toff
Transients
Gate Leakage
uS
uS
1
1
mV
|Vc| = 2.5V
uA
10
100
2. Insertion Loss can be optimized by varying the DC Blocking Capacitor value, ie. 1000 pF for 100 MHz - 500 MHz, 39 pF for
0.5 GHz - 3 GHz.
Truth Table
3
V1
+2.5 to +5V
0 + 0.2V
0 + 0.2V
0 + 0.2V
V2
0 + 0.2V
+2.5 to +5V
0 + 0.2V
0 + 0.2V
V3
0 + 0.2V
0 + 0.2V
+2.5 to +5V
0 + 0.2V
V4
0 + 0.2V
0 + 0.2V
0 + 0.2V
+2.5 to +5V
ANT– RF1
On
Off
Off
Off
ANT - RF2
Off
On
Off
Off
ANT - RF3
Off
Off
On
Off
ANT - RF4
Off
Off
Off
On
3.
External DC blocking capacitors are required on all RF ports
2
Specifications subject to change without notice.
North America:
Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
Europe:
Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
GaAs SP4T 2.5V High Power Switch
Typical Performance Curves
Insertion Loss vs. Frequency,
25
o
C, 39 pF
-0.5
-0.6
-0.7
-25
MASWSS0020
V 1.00
Isolation vs. Frequency,
25
o
C, 39 pF
-15
-20
-0.8
-0.9
-1
0.5
1
1.5
2
Frequency (GHz)
2.5
3
-30
-35
0.5
1
1.5
2
Frequency (GHz)
2.5
3
Harmonic Rejection vs. Control Voltage,
25
o
C, 39 pF
-60
Pin = +34 dBm @ 1 GHz
-65
-70
-75
-80
-85
2.2
2.4
2.6
Control Voltage (V)
2.8
3
3rd Harmonic
2nd Harmonic
3
Specifications subject to change without notice.
North America:
Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
Europe:
Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
GaAs SP4T 2.5V High Power Switch
FQFP 16-lead 4x4 mm
MASWSS0020
V 1.00
4
Specifications subject to change without notice.
North America:
Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
Europe:
Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
GaAs SP4T 2.5V High Power Switch
Handling Procedures
The following precautions should be observed to avoid
damage:
MASWSS0020
V 1.00
Static Sensitivity
Gallium Arsenide Integrated Circuits are ESD sensitive
and can be damaged by static electricity. Proper ESD
techniques should be used when handling these devices.
Ordering Information
Part Number
MASWSS0020
MASWSS0020TR
MASWSS0020SMB
Package
FQFP-N 16-lead Plastic Package
1000 piece reel
Sample Test Board
5
Specifications subject to change without notice.
North America:
Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
Europe:
Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
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