2.25 Volt Voltage Variable Absorptive Attenuator

42 dB, 1.8 - 2.5 GHz

AT-119

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

product(s) or information contained herein without notice. M/A-COM makes

no warranty, representation or guarantee regarding the suitability of its

products for any particular purpose, nor does M/A-COM assume any liability

whatsoever arising out of the use or application of any product(s) or

information.

• North America Tel: 800.366.2266 / Fax: 978.366.2266

• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300

• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298

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

V9

1

Features

• Single Positive Voltage Control: 0 to +2.25 Volts

• 42 dB Typical Attenuation Range at 2.4 GHz

• Low DC Power Consumption

• SOT-25 Plastic Package

• Tape and Reel Packaging Available

Description

M/A-COM’s AT-119 is a GaAs MMIC voltage

variable absorptive attenuator in a low cost, SOT-25

five-lead, surface mount plastic package. M/A-COM

fabricates the AT-119 with a proven monolithic GaAs

0.5 micron gate process that features full chip

passivation for performance and reliability.

Applications

The AT-119 is ideally suited for applications that

require fine tuning, linear attenuation with voltage,

and very low power consumption.

Typical

applications

for

the

AT-119

include

automatic gain control circuits in satellite radio

receivers and other wireless receivers.

Functional Schematic

Pin Configuration

Pin

Function

Description

1

RF

RF (input / output)

2

GND

Ground

3

RF

RF (input / output)

4

Control Voltage

5

DC Supply Voltage

Part Number

Package

AT-119

SOT-25 Plastic Package

AT-119TR-3000

3000 piece reel

AT-119SMB

Sample Test Board

(Includes 5 Samples)

5

V

CC

4

V

CTL

1

RF

3

RF

2

GND

100pF

100pF

5

V

CC

4

V

CTL

1

RF

3

RF

2

GND

100pF

100pF

Parameter

Absolute Maximum

Input Power

+21 dBm

-1V

-1V

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.

3.

M/A-COM does not recommend sustained operation near

these survivability limits.

1. Reference Application Note M513 for reel size information.