RFSA2113
rfmd.com
Wide Bandwidth Voltage Controlled Attenuator
Package Style: MCM, 16-Pin, 1.175mm x 3.2mm x3.2mm
Features
Patent Pending Circuit
Architecture
Broadband 50MHz to 18,000MHz
Frequency Range
1
2
3
4
12
11
10
9
EN
GND
RFIN
GND
GND
30dB Attenuation Range
+45dBm IIP3 Typical
+75dBm IIP2 Typical
CONTROL
BLOCK
GND
RFOUT
GND
High 1dB Compression Point
29dBm
ATTEN
Low Supply Current 2mA Typical
3 to 5V Power Supply
Linear in dB Control
Characteristic
Functional Block Diagram
Internal Temperature
Compensation
Product Description
Class 1C ESD ( 1000V )
Complete Solution in a Small
3.2mm x 3.2mm, QFN Package
RFMD’s RFSA2113 is a fully monolithic analog voltage controlled attenuator
(VCA) featuring exceptional linearity over a typical temperature compensated
30dB gain control range. The RFSA2113 features a wide bandwidth up to 18GHz.
It incorporates a revolutionary new circuit architecture to solve a long standing
industry problem: high IP3, high attenuation range, low DC current, broad
bandwidth and temperature compensated linear in dB control voltage
characteristic. This voltage controlled attenuator is controlled by a single positive
control voltage with on chip DC conditioning circuitry. The slope polarity of the
control voltage versus gain is selectable. The RFSA2113 draws a very low 2mA
current. This attenuator is matched to 50Ω over its rated control range and
frequency with no external matching components required. Typical VCA’s in this
performance are based on compound semiconductor GaAs FET MMICs that
require 1 to 2 negative voltages for control. This game changing product
incorporates the complete solution in a small 3.2mm x 3.2mm MCM package
that reduces the footprint in area and simplifies the control aspects over
conventional compound semiconductor attenuator approaches.
Applications
Point to Point Radio
Test Instrumentation
Microwave Radio
High Linearity Power Control
Ordering Information
RFSA2113SR
7” Reel with 100 pieces
RFSA2113SQ
Sample bag with 25 pieces
RFSA2113TR13
RFSA2113PCK-410
13” Reel with 2500 pieces
50MHz to 18,000MHz PCBA with 5-piece sample bag
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trademark
owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
7628 Thorndike Road, Greensboro, NC 27409-9421 ∙ For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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