Digital Attenuator

31.0 dB, 5-Bit, TTL Driver, DC-2.0 GHz

AT-263-PIN

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.

V5

1

RoHS

Compliant

Features

• Attenuation: 1 dB steps to 31 dB

• Temperature Stability: ± 0.18 dB from –55°C to

+85°C Typical

•

Low DC Power Consumption

•

Hermetic Surface Mount Package

•

Integral TTL Driver

•

50 Ohm Nominal Impedance

•

Lead-Free CR-12 Package

•

260°C Reflow Compatible

Description

M/A-COM’s AT-263-PIN is a GaAs FET 5-bit digital

attenuator with a 1 dB minimum step size and 31 dB

total attenuation. This attenuator and integral TTL

driver is in a hermetically sealed ceramic 16-lead

surface mount package. The AT-263-PIN is ideally

suited for use where accuracy, fast switching, very

low power consumption and low intermodulation

products are required. Typical applications include

dynamic range setting in precision receiver circuits

and other gain/leveling control circuits.

Environ-

mental screening is available.

Contact the factory

for information.

Ordering Information

Part Number

Package

AT-263-PIN

Bulk Packaging

AT-263TR

1000 piece reel

AT-263-TB

Sample Test Board

Note: Reference Application Note M513 for reel size

information.

Note: Die quantity varies.

Functional Schematic

Pin Configuration

Pin No.

Function

Pin No.

Function

1

RF1

9

C5

2

GND

10

+5V

3

GND

11

-5V

4

GND

12

C4

5

GND

13

C3

6

GND

14

C2

7

GND

15

C1

8

RF2

16

GND

The metal bottom of the case must be connected to RF and DC

ground.

* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.