参数资料
型号: AT-259
元件分类: 衰减器
英文描述: 0 MHz - 2000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 3.8 dB INSERTION LOSS-MAX
封装: PLASTIC, TO-253AA, SOT-143, 4 PIN
文件页数: 1/3页
文件大小: 79K
代理商: AT-259
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.
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or
information contained herein without notice.
1
Voltage Variable Absorptive Attenuator
12 dB, DC - 2.0 GHz
M/A-COM Products
Rev. V5
AT-259
ADVANCED: Data Sheets contain information regarding a product M/A-COM 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 has under develop-
ment. 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
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.
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.
Functional Schematic
Pin Configuration
Pin No.
Function
Pin No.
Function
1
Ground
3
RF2
2
VC
4
RF1
Absolute Maximum Ratings
3
Parameter
Absolute Maximum
Input Power
+21 dBm
Control Voltage
+5V, -8.5V
Operating Temperature
-40°C to +85°C
Storage Temperature
-65°C to +150°C
Part Number
Package
AT-259
Bulk Packaging
AT-259TR
Forward Tape and Reel
AT-259SMB
Sample Board
3. Exceeding any one or combination of these limits may
cause permanent damage to this device.
Ordering Information
1,2
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
Reference Application Note M538 for lead-free solder reflow recommendations.
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