AT-266 Просмотр технического описания (PDF) - M/A-COM Technology Solutions, Inc.
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AT-266 Datasheet PDF : 3 Pages
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AT-266
Digital Attenuator, 1 Bit, 10 dB Step
DC - 2.0 GHz
Features
• Single 10 dB Step
• Low Loss: 0.3 dB @ 900 MHz
• Low Cost SOT-25 Package
Description
M/A-COM’s AT-266 is a 1 bit, 10 dB step GaAs
MMIC digital attenuator in a low cost SOT-25
surface mount plastic package. The AT-266 is
ideally suited for use where high accuracy, very low
power consumption and low intermodulation
products are required. Typical applications include
radio, wireless LANs, GPS equipment and other
gain/level control circuits.
The AT-266 is fabricated using a mature GaAs
MMIC process featuring full chip passivation for
increased performance and reliability.
Ordering Information 1
Part Number
Package
AT-266
Bulk Packaging
AT-266TR
1000 piece reel
1. Reference Application Note M513 for reel size information.
Absolute Maximum Ratings 2,3
Parameter
Absolute Maximum
Input Power
50 MHz
500 - 2000 MHz
+27 dBm
+34 dBm
Control Voltage
-8.5 V < Vc < +8 V
Operating Temperature
-40°C to +85°C
Storing Temperature
-65°C to +150°C
2. Exceeding any one or combination of these limits may cause
permanent damage to this device.
3. M/A-COM does not recommend sustained operation near
these survivability limits.
Functional Block Diagram
Rev. V4
Pin Configuration
Pin No.
1
2
3
4
5
Function
RF1
GND
RF2
V1
V2
Description
RF In/Out
RF Ground
RF In/Out
Control Voltage
Control Voltage
Truth Table 4,5,6
V1
V2
Attenuation State
0
1
10 dB
1
0
Insertion Loss
4. For positive voltage control, external DC blocking capacitors
are required on all RF ports (pins 1, 2 and 3).
5. Differential voltage, V(state 1) - V(state 0), must be +2.8 V
minimum and less than 8 V.
6. 0 = -8 V to 0.2 V, 1 = -0.2 V to 8 V
1
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 / Fax: 978.366.2266
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
• 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.
typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make
Commitment to produce in volume is not guaranteed.
changes to the product(s) or information contained herein without notice.
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