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參數(shù)資料
| 型號： | AT-255TR |
| 元件分類： | 衰減器 |
| 英文描述： | 0 MHz - 2500 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 4.2 dB INSERTION LOSS-MAX |
| 封裝： | PLASTIC, MO-178AA, SOT-25, 5 PIN |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 178K |
| 代理商： | AT-255TR |
3 Volt Voltage Variable Attenuator
25 dB, DC-2.5 GHz
AT-255
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.
V7
1
Features
Single Voltage Control: 0 to -3 Volts
25 dB Attenuation Range at 0.9 GHz
Low DC Power Consumption
SOT-25 Plastic Package
Tape and Reel Packaging Available
Description
M/A-COM’s AT-255 is a GaAs MMIC voltage
variable absorptive attenuator in a low cost SOT-25
surface
mount plastic package. The AT-255 is
ideally suited for use where variable attenuation, fine
tuning, and very low power consumption are
required.
Typical applications include radio, cellular, GPS
equipment and automatic gain/level control circuits.
The AT-255 is fabricated using a mature 1-micron
GaAs MESFET process. The process features full
chip passivation for increased performance and
reliability.
Functional Schematic 1
1. VC = -3 V to 0 V @ 25 A maximum.
Ordering Information
Part Number
Package
AT-255
SOT-25 Plastic
AT-255TR
1000 piece reel
Note: Reference Application Note M513 for reel size
information.
Pin Configuration
Pin No.
Function
Pin No.
Function
1
RF Port
4
Ground
2
Ground
5
VC
3
RF Port
Absolute Maximum Ratings 2
Parameter
Absolute Maximum
Input Power
+21 dBm
Control Voltage VC
-8 V to +0.5 V
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.
54
3
2
1
Vc
GND
RF
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