AT-273-PIN View Datasheet(PDF) - Tyco Electronics
Part Name
Description
Manufacturer
AT-273-PIN Datasheet PDF : 4 Pages
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Digital Attenuator
32.0 dB, 2-Bit, TTL Driver, DC-2.0 GHz
Features
• Attenuation: 16.0 dB Steps to 32 dB
• Low DC Power Consumption
• Hermetic Surface Mount Package
• Integral TTL Driver
• 50 ohm Impedance
• Temperature Stability: ±0.18 dB from -55°C to
+85°C Typ.
• Tape and Reel Packaging Available
• Lead-Free CR-11 Package
• 260°C Reflow Compatible
Description
M/A-COM's AT-273-PIN is a GaAs FET digital
attenuator with a 16.0 dB minimum step size and a
32 dB total attenuation range. This attenuator and
integral TTL driver is in a hermetically sealed
ceramic 16-lead surface mount package. The AT-
273-PIN 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. Environmental screening is
available. Contact the factory for information.
Ordering Information
Part Number
AT-273-PIN
Package
Bulk Packaging
Note: Reference Application Note M513 for reel size
information.
Note: Die quantity varies.
RoHS
Compliant
Functional Schematic1
RF1
GND
GND
GND
Vee
Vcc
NC
PIN 16 NC
16 dB
16 dB
AT-273-PIN
V8
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
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.
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