AT90-0283-TB M/A-COM, Inc., AT90-0283-TB Datasheet

AT90-0283-TB

Manufacturer Part Number

AT90-0283-TB

Description

DC-3.5 Ghz, Digital Attenuator, 15.5 DB, 5-bit, TTL Driver

Manufacturer

M/A-COM, Inc.

Datasheet

1.AT90-0283-TB.pdf (5 pages)

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Digital Attenuator, 15.5 dB, 5-Bit,

TTL Driver, DC-3.5 GHz

Features

Description

M/A-COM's AT90-0283 is a GaAs FET 5-bit digital

attenuator with integral TTL driver. Step size is 0.5 dB

providing a 15.5 dB total attenuation range. This device is

in an FQFP-N plastic surface mount package. The AT90-

0283 is ideally suited for use where accuracy, fast speed,

very low power consumption and low costs are required.

Electrical Specifications T

1 dB Compression

Switching Speed

Insertion Loss

Attenuation: 0.5 dB Steps to 15.5 dB

Low DC Power Consumption

Small Footprint, JEDEC Package

Integral TTL Driver

50 ohm Impedance

Test Boards are Available

Tape and Reel Packaging Available

Parameter

Attenuation

Accuracy

Logic “0”

Logic “1”

Input IP

VSWR

+Vcc

-Vee

-Iee

Icc

Two-tone inputs up to +5 dBm

Source Current is 20 µA max.

10% to 90% or 90% to 10%

Sink Current is 20 µA max.

Individual Bits 0.5-1-4-8 dB

50% Cntl to 90%/10% RF

Any Combination of Bits

Test Conditions

Individual Bit 2 dB

-Vee min to max,

Vcc min to max,

Logic “0” or “1”

1 to 15.5 dB

Full Range

—

= +25°C

DC - 3.5 GHz

0.5 - 3.5 GHz

Frequency

0.5-3.5 GHz

50 MHz

—

CSP-1

Units

Ratio

dBm

Min

4.75

-8.0

0.0

2.0

—

Typical

1.6:1

+21

+29

+35

+48

-5.0

-0.2

2.8

5.0

0.2

—

±(.4 +10% of atten setting)

±(.3 +5% of atten setting)

±(.5 +7% of atten setting)

1.8:1

-4.75

Max

5.25

150

3.2

0.8

5.0

—

-1

V 6.00

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