M A COM SW-395, SW-395TR Datasheet
3 Volt GaAs SPDT Switch, DC - 2.0 GHz SW-395
SW-395
3 Volt GaAs SPDT Switch
DC - 2.0 GHz
Features
•
Low Insertion Loss: <0.7 dB @ 900 MHz
•
Low Power Consumption: <10µA @ =3 VDC
•
Very High Intercept Point: 52 dBm IP
•
Both Positive and Negative 3 to 8 V Control
•
Low Cost SOT-26 Package
3
Description
M/A-COM’s SW-395 is a GaAs monolithic switch in a low cost
SOT-26 surface mount plastic package. The SW-395 is ideally
suited for applications where very low power consumption, low
intermodulation products, very small size and low cost are
required. Typical application is an internal/external antenna
select switch for portable telephones and data radios. In addition, because of its low loss, good isolation and inherent speed,
the SW-395 can be used as a conventional T/R swi tch or as an
antenna diversity switch. The SW-395 can be used in power
applications up to 0.5 Watts in sys tems such as cellular, PCN,
GSM an other analog/digital wireless communications systems.
The SW-395 is fabricated using a mature 1-micron gate length
GaAs MESFET process. The process feat ur es full chip passivation for increased performance and reliability.
SOT-26
1
XX#Y
PIN 1
1. Dimensions are in: inches/mm
Ordering Information
Part Number Package
SW-395 PIN SOT-26 Plastic Package
SW-395TR Forward Tape and Reel
1. Refer to Application Note M513 for reel size information.
1
Electrical Specifications: TA = +25°C
1
Parameter Test Conditions Units Min. Typ. Max.
Insertion Loss DC - 1.0 GHz dB 0.7 0.9
1.0 - 2.0 GHz dB 0.8 1.0
Isolation DC - 1.0 GHz dB 23 25
1.0 - 2.0 GHz dB 17 19
VSWR DC - 2.0 GHz 1.3:1
1 dB Compression Input Power (3V Control) 0.5 GHz dBm 27
Input Power (5V Control) 0.5 GHz dBm 28
Input Power (3V Control) 0.05 GHz dBm 16
Input Power (5V Control) 0.05 GHz dBm 18
,
T
T
rise
,
T
T
on
off
ransients
T
Input IP
fall
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, Control to 10% RF
In-band
2
2-Tone, 5 MHz spacing, 3 V Control 0.05 GHz dBm 61
S
µ
S
µ
mV 38
7
8
+10 dBm each 0.5 GHz dBm 71
Input IP
3
2-Tone, 5 MHz spacing, 3 V Control 0.05 GHz dBm 48
+10 dBm each 0.5 GHz dBm 52
1. All measurements at 1 GHz in a 50Ω system with a 3V control unless otherwise specified. Loss varies at 0.003 dB/°C.
M/A-COM Division of AMP Incorporated Q North America: Tel. (800) 366-2266, Fax (800) 618-8883 Q Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
Q
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V2.00
3 Volt GaAs SPDT Switch, DC - 2.0 GHz SW-395
ISOLATION vs FREQUENCY
VSWR vs FREQUENCY
INSERTION LOSS vs FREQUENCY
Absolute Maximum Ratings
1
Parameter Absolute Maximum
Input Power +33 dBm
Operating Voltage +8.5 Volts
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C
1. Exceeding any one or a combination of these limits may cause
permanent damage.
Truth Table
Mode
(Control)
1
Positive
Positive/
Negative
Negative
1,2
3
1. External DC blocking capacitors are required on all RF ports.
2. |-Vc|<
8 V.
3. If negative control is used, DC blocking capacitors are not required on RF ports.
Control
A
0±0.2V
+3V to +8V
-Vc±0.2V
+Vc
0±0.2V
-3V to -8V
ControlBRFC - RF1 RFC - RF2
+3V to +8V
0±0.2V
+Vc
-Vc±0.2V
-3V to -8V
0±0.2V
Off
On
On
Off
On
Off
On
Off
Off
On
Off
On
Functional Schematic
VA RFC VB
PIN 1
RF 1 G ND RF 2
1
1. DC blocking capacitors not required if negative control voltage is
used.
Typical Performance Curves
Insertion Loss vs. Frequency VSWR vs. Frequency
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
INSERTION LOSS (dB)
0
00.511.522.533.5
Isolation vs Frequency
50
45
40
35
30
25
20
15
ISOLATION (dB)
10
5
0
00.511.522.533.5
FREQUENCY (GHz)
FREQUENCY (GHz)
1.5
1.4
1.3
1.2
VSWR (dB)
1.1
1
0 0.5 1 1.5 2 2.5 3 3.5
FREQUENCY (GHz)
M/A-COM Division of AMP Incorporated Q North America: Tel. (800) 366-2266, Fax (800) 618-8883 Q Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087
Q
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V2.00
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