AT20-0263_1 Datasheet, PDF (1/4 Pages) Tyco Electronics – Digital Attenuator 31.0dB, 5-Bit, TTL Driver, DC-2.0 GHz

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
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.
RoHS
Compliant
Functional Schematic
C5
+5V
-5V
C4
C3
C2
C1
PIN 16 GND
16 dB
8 dB
4 dB
2 dB
1 dB
AT20-0263
V4
RF2
GND
GND
GND
GND
GND
GND Orientation Mark
RF1 PIN 1
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.
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