AT20-0263_15 Datasheet, PDF (1/5 Pages) M/A-COM Technology Solutions, Inc. – Digital Attenuator

AT20-0263
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
 RoHS* Compliant
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.
Functional Schematic
C5
+5V
-5V
C4
C3
C2
C1
PIN 16 GND
16 dB
8 dB
4 dB
2 dB
1 dB
Rev. V5
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.
1 ^{* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.}
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