GaAs SPDT Switch

0.05 - 3.0 GHz

Rev. V4

SW-485

• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400

• India Tel: +91.80.43537383

• China Tel: +86.21.2407.1588

Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

1

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

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.

Commitment to produce in volume is not guaranteed.

Features

• Low Insertion Loss: 0.3 dB Typ. @ 2.4 GHz

• Isolation: 21 dB @ 2.4 GHz

• Low Power Consumption: <5 μA @ +2.3V

• Low Cost Plastic SOT-363 Package

Description

M/A-COM’s SW-485 is a GaAs PHEMT MMIC

SPDT switch in a low cost SC-70 (SOT-363) surface

mount plastic package. The SW-485 is ideally suited

for applications where very small size and low cost

are required. Typical applications are dual band

systems where switching between small signal

components are required such as filter banks,

single-band LNAs, converters, etc. This part can be

used for low power, low loss requirements in all

systems operating up to 3 GHz, including PCS,

GSM, DCS,

Blue Tooth, and other Rx chain

applications.

The SW-485 is fabricated using a 0.5 micron gate

length GaAs PHEMT process. The process features

full passivation for performance and reliability.

Functional Schematic

RF1

GND

RF2

V1

RFC

V2

PIN 1

C=39pF

C=39pF

C=39pF

Pin No.

Function

Description

1

RF1

RF Port 1

2

GND

Ground

3

RF2

RF Port 2

4

V2

Control 2

5

RFC

RF Input

6

V1

Control 1

Pin Configuration

Truth Table

2

Mode

(Control)

Control

V1

Control

V2

RFC-RF1 RFC-RF2

Positive

2

0 ± 0.2V

+2.3 to +5V

+2.3 to +5V

0 ± 0.2V

On

Off

Off

On

2. External DC blocking capacitors are required on all RF ports.

Parameter

Absolute Maximum

Input Power (0.5 - 3.0 GHz)

3 V Control

5 V Control

+32 dBm

+34 dBm

Operating Voltage

+8.5 volts

Operating Temperature

-40°C to +85°C

Storage Temperature

-65°C to +150°C

Absolute Maximum Ratings

3

3. Exceeding any one or combination of these limits may cause

Ordering Information

1

Part Number

Package

SW-485

Bulk Packaging

SW-485TR-3000

3000 piece reel

SW-485SMB

Sample Board (Includes 5 Samples)

1. Reference Application Note M513 for reel size information.