AT20-0273_15 Datasheet, PDF (1/4 Pages) M/A-COM Technology Solutions, Inc. – Digital Attenuator

AT20-0273
Digital Attenuator
32.0 dB, 2-Bit, TTL Driver, DC-2.0 GHz
Features
• Attenuation: 16 dB steps to 32 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-11 Package
• 260°C Reflow Compatible
• RoHS* Compliant
Description
M/A-COM’s AT20-0273 is a GaAs FET digital
attenuator with a 16 dB minimum step size and 32
dB total attenuation. This attenuator and integral
TTL driver is in a sealed ceramic 16-lead surface
mount package. The AT20-0273 is ideally suited for
use where accuracy, fast switching, very low power
consumption and low intermodulation products are
required. Typical applications include dynamic
range setting in precision receiver circuits and other
gain/leveling control circuits. Available with en-
hanced performance as fully hermetic version. Envi-
ronmentally screenable as P/N AT-273-PIN.
Ordering Information
Part Number
AT20-0273
Package
Bulk Packaging
Note: Reference Application Note M513 for reel size
information.
Rev. V6
Functional Schematic¹
RF1
GND
GND
GND
Vee
Vcc
NC
PIN 16 NC
16 dB
16 dB
RF2
GND
GND
GND
GND
C1
GND Orientation Mark
C2 PIN 1
1. Use the C1 control for a single 16-dB bit.
Pin Configuration
Pin No.
1
2
3
4
5
6
7
8
Function
C2
GND
C1
GND
GND
GND
GND
RF2
Pin No.
9
10
11
12
13
14
15
16
Function
RF1
GND
GND
GND
Vee
Vcc
NC
NC
The metal bottom of the case must be connected to RF and DC
ground.
* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.
1
ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: [phone] • Europe Tel: [phone]
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
• India Tel: [phone]
• China Tel: [phone]
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.