SW-425 Datasheet, PDF (1/3 Pages) Tyco Electronics – 3 Watt Cellular T/R and Antenna Changeover Switch, DC - 3.0 GHz

SW-425
3 Watt Cellular T/R and Antenna Changeover Switch
DC - 3.0 GHz
Features
• Low Cost Plastic SOT-26 Package
• Low Insertion Loss: < 0.6 dB @ 1900 MHz
• Low Power Consumption: <20µA @ +3V
• Very High Intercept Point: 53 dBm IP3
• Both Positive and Negative 2.5 to 8 V Control
• For CDMA, W-CDMA, TDMA, GSM, PCS and
DCS Applications
Functional Diagram
6
5
4
Description
M/A-COM’s SW-425 is a GaAs monolithic switch in a
low cost SOT-26 surface mount plastic package. The
SW-425 is ideally suited for applications where very low
power consumption (<10µA@5V), low
intermodulation products and very small size are
required. Typical applications include 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-425 can be used
as a conventional T/R switch or as an antenna diversity
switch. The SW-425 can be used in power applications
up to 3 watts in systems such as cellular PCS, CDMA,
W-CDMA, TDMA, GSM and other analog/digital
wireless communications systems.
The SW-425 is fabricated using M/A-COM’s 0.5 micron
gate length GaAs PHEMT process. The process
features full chip passivation for increased performance
and reliability.
1
2
3
Pin Configuration
Pin No.
1
2
3
Function
RF1
Ground
RF2
Pin No.
4
5
6
Rev. V5
Function
VB
RF Common
VA
Ordering Information¹
Part Number
Package
SW-425 PIN
SW-425TR
Bulk Packaging
1000 piece reel
1. Reference Application Note M513 for reel size information.
Absolute Maximum Ratings ²
Parameter
Absolute Maximum
Input Power (0.5—3.0 GHz)
3 V Control
5 V Control
+36 dBm
+38 dBm
Operating Temperature
-40°C to +85°C
Storage Temperature
-65°C to +150°C
2. Exceeding any one or combination of these limits may cause
permanent damage to this device.
Truth Table
Mode
(Control)
Positive⁴
Positive/
Negative ^3,4
Negative⁵
Control A Control B
0 + 0.2 V +2.5 to +8 V
+2.5 to +8 V 0 + 0.2 V
-Vc + 0.2 V
+Vc
+Vc
-Vc + 0.2 V
0 + 0.2 V -2.5 to -8 V
-2.5 to -8 V 0 + 0.2 V
RFC -
RF1
Off
On
Off
On
On
Off
RFC -
RF2
On
Off
On
Off
Off
On
3. External DC blocking capacitors are required on all RF ports.
39 pF capacitors can be used for positive control voltage.
4. [-VCTL], VCTL < 8 V
5. If negative control is used, DC blocking capacitors are not
required on RF ports.
1
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is considering for development. Performance is based on target specifications, simulated results,
and/or prototype measurements. Commitment to develop is not guaranteed.
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Visit www.macomtech.com for additional data sheets and product information.
Solutions has under development. Performance is based on engineering tests. Specifications are
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. _{M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make}
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.