RoHS
Compliant
Digital Attenuator
31.0 dB, 5-Bit, TTL Driver, DC-2.0 GHz
Features
•
Attenuation: 1 dB steps to 31 dB
•
Temperature Stability: ± 0.18 dB from –40°C to
+85°C Typical
•
Low DC Power Consumption
•
Surface Mount Package
•
Integral TTL Driver
•
Low Cost/High Performance
•
50 Ohm Nominal Impedance
•
Lead-Free CR-12 Package
•
260°C Reflow Compatible
AT20-0263
V4
Functional Schematic
C5
16 dB
RF2
GND
8 dB
+5V
-5V
C4
C3
C2
C1
1 dB
2 dB
GND
GND
GND
GND
GND Orientation Mark
RF1 PIN 1
4 dB
PIN 16 GND
Description
M/A-COM’s AT20-0263 is a GaAs FET 5-bit digital
attenuator with a 1 dB minimum step size and 31 dB
total attenuation. This attenuator and integral TTL
driver is in a ceramic 16-lead surface mount pack-
age. The AT20-0263 is ideally suited for use where
accuracy, fast switching, very low power consump-
tion and low intermodulation products are required.
Typical applications include dynamic range setting in
precision receiver circuits and other gain/leveling
control circuits. Available with enhanced perform-
ance as fully hermetic version. Environmentally
screenable as P/N AT-263-PIN.
Pin Configuration
Pin No.
1
2
3
4
5
6
7
8
Function
RF1
GND
GND
GND
GND
GND
GND
RF2
Pin No.
9
10
11
12
13
14
15
16
Function
C5
+5V
-5V
C4
C3
C2
C1
GND
The metal bottom of the case must be connected to RF and DC
ground.
Ordering Information
Part Number
AT20-0263
Package
Bulk Packaging
Note: Reference Application Note M513 for reel size
information.
Note: Die quantity varies.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
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.
MA-COM [ M/A-COM TECHNOLOGY SOLUTIONS, INC. ]
