RFSA2113

rfmd.com

Wide Bandwidth Voltage Controlled Attenuator

Package Style: MCM, 16-Pin, 1.175mm x 3.2mm x3.2mm

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 trademark s are the property of their respective owners. ©2006, RF Micro Devices, Inc.

DS140616

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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Features

Patent Pending Circuit

Architecture

Broadband 50MHz to 18,000MHz

Frequency Range

30dB Attenuation Range

+45dBm IIP3 Typical

+75dBm IIP2 Typical

High 1dB Compression Point

29dBm

Low Supply Current 2mA Typical

3 to 5V Power Supply

Linear in dB Control

Characteristic

Internal Temperature

Compensation

Class 1C ESD ( 1000V )

Complete Solution in a Small

3.2mm x 3.2mm, QFN Package

Applications

Point to Point Radio

Test Instrumentation

Microwave Radio

High Linearity Power Control

3

2

4

1

10

11

9

12

CONTROL

BLOCK

ATTEN

RFIN

RFOUT

EN

GND

GND

GND

GND

GND

Product Description

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.

Ordering Information

RFSA2113SR

7” Reel with 100 pieces

RFSA2113SQ

Sample bag with 25 pieces

RFSA2113TR13

13” Reel with 2500 pieces

RFSA2113PCK-410

50MHz to 18,000MHz PCBA with 5-piece sample bag

Functional Block Diagram