AT-264
Digital Attenuator, 4-Bit, Single Control
30 dB, 0.5 - 2.0 GHz
Features
•
•
•
•
Positive Single Control
2-dB Attenuation Steps to 30 dB
Low DC Power Consumption
TSSOP-16 Plastic Package
Rev. V7
Functional Schematic
2,3
Vs
16
15
14
13
12
1
11
10
9
Description
M/A-COM’s AT-264 is a 4-bit, 2-dB step GaAs MMIC
digital attenuator in a low cost TSSOP-16 surface
mount plastic package. The AT-264 is ideally suited
for use where high accuracy, very low power
consumption and low intermodulation products are
required. Typical applications include radio, cellular,
wireless LANs, GPS equipment and other gain/level
control circuits.
The AT-264 is fabricated using a mature 1 micron
GaAs MESFET process. The process features full
chip passivation for increased performance and
reliability.
1
16
8
4
2
2
3
4
5
6
7
8
2. Blocking caps are required on all RF ports (39 pF used for
data measurements).
3. Vs = +5 ± 0.2 VDC must be applied at RF1 or RF2 using a
10 KΩ or greater pull-up resistor.
Pin Configuration
Ordering Information
1
Part Number
AT-264-PIN
AT-264TR
Package
Bulk Packaging
1000 piece reel
Pin No.
1
2
3
4
5
6
7
8
Function
Ground
Ground
VC1
VC2
VC3
VC4
Ground
Ground
Pin No.
9
10
11
12
13
14
15
16
Function
RF2
Ground
Ground
Ground
Ground
Ground
Ground
RF1
1. Reference Application Note M513 for reel size information.
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,
•
Europe
Tel: 44.1908.574.200 / Fax: 44.1908.574.300
and/or prototype measurements. Commitment to develop is not guaranteed.
•
Asia/Pacific
Tel: 81.44.844.8296 / Fax: 81.44.844.8298
PRELIMINARY:
Data Sheets contain information regarding a product M/A-COM Technology
Visit www.macomtech.com for additional data sheets and product information.
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.
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.
MA-COM [ M/A-COM TECHNOLOGY SOLUTIONS, INC. ]
