AT-259SMB [TE]

Voltage Variable Absorptive Attenuator 12 dB, DC - 2.0 GHz; 可变电压衰减器吸收12分贝， DC - 2.0 GHz的


型号：	AT-259SMB
厂家：	TE CONNECTIVITY
描述：	Voltage Variable Absorptive Attenuator 12 dB, DC - 2.0 GHz 可变电压衰减器吸收12分贝， DC - 2.0 GHz的衰减器
文件：	总3页 (文件大小：66K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

AT-259

Voltage Variable Absorptive Attenuator

12 dB, DC - 2.0 GHz

Rev. V5

Functional Schematic

Features

•

Attenuation: 12 dB at 1 GHz

Low Intermodulation Products

Low DC Power Consumption: 50 μW

Single Voltage Control: 0 to -4 Volts

Nanosecond Switching Speed

Temperature Range: -40°C to +85°C

SOT-143 Plastic Package

Tape and Reel Packaging Available

Description

M/A-COM’s AT-259 is a GaAs MMIC voltage

variable absorptive attenuator in a low cost SOT-143

4-Lead surface mount plastic package. The AT-259

is ideally suited for use where attenuation fine

tuning, fast switching and very low power

consumption are required.

Typical applications include radio, cellular, GPS

equipment and other automatic gain/level control

circuits.

Pin Configuration

Pin No.

Function

Ground

V_C

Pin No.

Function

The AT-259 is fabricated with a monolithic GaAs

MMIC using a mature 1 micron process. The

process features full chip passivation for increased

performance and reliability.

RF2

RF1

Absolute Maximum Ratings ³

Ordering Information ^1,2

Parameter

Input Power

Absolute Maximum

+21 dBm

Part Number

AT-259

Package

Bulk Packaging

Control Voltage

+5V, -8.5V

AT-259TR

AT-259SMB

Forward Tape and Reel

Sample Board

Operating Temperature

Storage Temperature

-40°C to +85°C

-65°C to +150°C

1. Reference Application Note M513 for reel size information.

2. All sample boards include 5 loose parts.

3. Exceeding any one or combination of these limits may

cause permanent damage to this device.

†

Reference Application Note M538 for lead-free solder reflow recommendations.

Meets JEDEC moisture sensitivity level 1 requirements.

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.

• 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.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.

AT-259

Voltage Variable Absorptive Attenuator

12 dB, DC - 2.0 GHz

Rev. V5

Electrical Specifications: T_A= 25°C, Z₀= 50 Ω

Parameter

Test Conditions⁴

Frequency Units Min.

Typ.

Max.

DC - 0.1 GHz

DC - 0.5 GHz

DC - 1.0 GHz

DC - 2.0 GHz

—

2.9

3.0

3.2

3.4

3.1

3.2

3.5

3.8

Insertion Loss

—

5 dB Attenuation

10 dB Attenuation

15 dB Attenuation

DC - 2.0 GHz

—

+ 0.2

+ 2.3

+ 7.0

+ 0.4

+ 2.5

+ 7.5

Flatness

(Peak to Peak)

Output Impedance

VSWR

—

Ohms

Ratio

—

2.1:1

—

Trise, Tfall

Ton, Toff

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

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

In Band

Transients

Linear Operation

Absolute maximum Input Power

dBm

—

Power Handling

IP₂

—

Measured Relative to Input Power

(For two-tone Input Power Up to +5 dBm)

0.05 GHz

0.5 - 2.0 GHz

dBm

—

Measured Relative to Input Power

(For two-tone Input Power Up to +5 dBm)

0.05 GHz

0.5 - 2.0 GHz

dBm

18.5

31⁵

36⁵

—

IP₃

4. Control voltage: 0 to -4 volts @ 20 µA typical.

5. For levels above 6 dB attenuation. For levels below 6 dB, the minimum specification numbers apply.

SOT-143^†

†

Meets JEDEC moisture sensitivity level 1 requirements.

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.

• 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.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.

AT-259

Voltage Variable Absorptive Attenuator

12 dB, DC - 2.0 GHz

Rev. V5

Typical Performance Curves

Insertion Loss vs. Frequency

Attenuation vs. Frequency

+25°C

-40°C

+85°C

0.0

0.5

1.0

1.5

2.0

0.0

0.5

1.0

1.5

2.0

Frequency (GHz)

VSWR vs. Frequency

Attenuation vs. Control Voltage, F = 950 MHz

2.0

1.8

1.6

1.4

1.2

1.0

0.0

0.5

1.0

1.5

2.0

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0.0

Frequency (GHz)

Control Voltage (V)

Handling Procedures

Please observe the following precautions to avoid

damage:

Static Sensitivity

Gallium Arsenide Integrated Circuits are sensitive

to electrostatic discharge (ESD) and can be

damaged by static electricity. Proper ESD control

techniques should be used when handling these

devices.

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.

• 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.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.

相关型号：