RF2421
9
Typical Applications
鈥?Power Control in Communication Systems
鈥?CMOS Compatible Programmable
Attenuator
鈥?Commercial and Consumer Systems
鈥?Portable Battery-Powered Equipment
10dB SWITCHED ATTENUATOR
Product Description
-A-
The RF2421 is a monolithic switched attenuator. The
device is built using a Gallium Arsenide process technol-
ogy and has a single step attenuation of 10dB. The input
and output of the device has a low VSWR 50鈩?match.
The RF output can drive up to +16dBm. This unit is
intended for use in systems that require RF power control
by digital means. No negative supply voltages are
required, and the current consumption is less than 5
碌
A
when the attenuator is off.
0.008
0.004
0.018
0.014
0.196
0.189
0.050
0.157
0.150
0.244
0.229
Dimensions in mm
0.068
0.053
8擄 MAX
0擄 MIN
0.034
0.016
0.009
0.007
NOTES:
1. Shaded lead is Pin 1.
2. All dimensions are excluding
mold flash.
3. Lead coplanarity -
0.005 with respect to datum "A".
9
ATTENTUATORS AND
SWITCHES
Optimum Technology Matching廬 Applied
Si BJT
Si Bi-CMOS
GaAs HBT
SiGe HBT
Si CMOS
!
GaAs MESFET
Package Style: SOIC-8
Features
鈥?Single 2.7V to 6V Supply
鈥?10dB Single Step Attenuation
鈥?1 dB Insertion Loss
鈥?1-bit Digitally Controlled Attenuation
鈥?Digitally Controlled Power Down Mode
NC 1
RF IN 2
GND 3
RF OUT 4
8 NC
7 G10
6 VDD
5 NC
鈥?500MHz to 3000 MHz Operation
Ordering Information
RF2421
RF2421 PCBA
10dB Switched Attenuator
Fully Assembled Evaluation Board
Functional Block Diagram
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Rev A6 001102
9-15
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