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RF2420

Part Number	RF2420
Manufacturer	RF Micro Devices
Description	PROGRAMMABLE ATTENUATOR
Published	Apr 16, 2005
Detailed Description	RF2420 9 Typical Applications • Power Control in Communication Systems • CMOS Compatible Programmable Attenuators • Comm...
Datasheet	RF2420 PDF File

Overview

RF2420 9 Typical Applications • Power Control in Communication Systems • CMOS Compatible Programmable Attenuators • Commercial and Consumer Systems • Portable Battery-Powered Equipment PROGRAMMABLE ATTENUATOR Product Description The RF2420 is a multistage monolithic programmable attenuator.
The device is built using an advanced Gallium Arsenide process technology and has an attenuation programmability over a 44dB range in 2dB steps.
The attenuation is set by five bits of digital data.
The input and output of the device have a low VSWR 50 Ω match.
This unit is intended for use in systems that require RF transmit power control by digital means.
Typical applications are in dual mode IS-54/55 compatible cellular transceivers and TETRA systems.
No negative supply voltages are required.
0.
157 0.
150 -A0.
008 0.
004 0.
393 0.
386 0.
018 0.
014 0.
050 0.
244 0.
229 8° MAX 0° MIN 0.
009 0.
007 0.
068 0.
053 NOTES: 1.
Shaded lead is Pin 1.
2.
All dimensions are excluding mold flash.
3.
Lead coplanarity - 0.
005 with respect to datum "A".
Optimum Technology Matching® Applied Si BJT Si Bi-CMOS GaAs HBT SiGe HBT ü Package Style: SOIC-16 GaAs MESFET Si CMOS Features • Single 3V to 6V Supply • 0dB to 44dB Attenuation Range • 4dB Insertion Loss • 5-bit Digitally Controlled Attenuation • Digitally Controlled Power Down Mode • DC to 950MHz Frequency Range RF IN 1 2 dB VDD 2 VDD 3 VDD 4 8 dB VDD 5 VDD 6 VDD 7 20 dB VDD 8 10 dB 4 dB 16 G2 15 G4 14 G8 13 GND 12 GND 11 G10 10 G20 9 RF OUT Ordering Information RF2420 RF2420 PCBA Programmable Attenuator Fully Assembled Evaluation Board Functional Block Diagram RF Micro Devices, Inc.
7628 Thorndike Road Greensboro, NC 27409, USA Tel (336) 664 1233 Fax (336) 664 0454 http://www.
rfmd.
com Rev A6 010720 9-9 ATTENTUATORS AND SWITCHES 0.
034 0.
016 9 RF2420 Absolute Maximum Ratings Parameter Supply Voltage RF Input Power Operating Ambient Temperature Storage Temperature Rating -0.
5 to +7.
0 +17 -40 to +85 -40 to +150 Unit VDC dBm °C °C Ca...

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