3 Watt Cellular T/R and Antenna Changeover Switch, DC - 3.0 GHz

SW-425

M/A-COM Division of AMP Incorporated

3 North America: Tel. (800) 366-2266, Fax (800) 618-8883 3 Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087

3 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 Watt Cellular T/R and Antenna

Changeover Switch, DC - 3.0 GHz

SW-425

Features

3

Applications

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 celluar PCS, CDMA, W-CDMA,

TDMA, GSM and other analog/digital wireless communications

systems.

The SW-425 is fabricated using a new 0.5 micron gate length GaAs

PHEMT process. The process features full chip passivation for

increased performance and reliability.

SOT-26 Plastic Package

Electrical Specifications T

Ordering Information

Part Number

Package

SW-425 PIN

SOT-26 Plastic Package

SW-425TR

Forward Tape and Reel

1

SW-425RTR

Reverse Tape and Reel

1

PIN1

XX#Y

1. Reference Application Note M513 for reel size information.

Parameter

Test Conditions

Units

Min.

Typ.

Max.

Insertion Loss

DC - 1 GHz

dB

0.4

0.5

Insertion Loss

1- 2 GHz

dB

0.55

0.65

Insertion Loss

2 - 3 GHz

dB

0.7

0.8

Isolation

DC - 1 GHz

dB

18

20

Isolation

1 - 2 GHz

dB

13

15

Isolation

2 - 3 GHz

dB

10

12

VSWR

DC - 3 GHz

1.2:1

1.4:1

P

500 MHz - 3 GHz

dBm

32

34

P

500 MHz - 3 GHz

dBm

34

36

Input IP

2

2-Tone, 5 MHz spacing,

0.9 GHz

+10 dBm (+13 dBm total) V

dBm

62

70

Input IP

3

2-Tone, 5 MHz spacing,

0.9 GHz

+10 dBm (+13 dBm total) V

dBm

48

53

Harmonics

2

nd

3

rd

Pin 30 dBm |V

dBc

65

45

70

48

Harmonics

2

nd

3

rd

Pin 33 dBm |V

dBc

65

65

75

75

T

T

Transients

10% to 90% RF, 90% to 10% RF

50% Control to 90% RF, Control to 10% RF

In-Band

nS

nS

mV

60

20

20

Gate Leakage Current

V

µA

10

20