RFSA3013 Datasheet, PDF (1/17 Pages) RF Micro Devices – 75 VOLTAGE CONTROLLED ATTENUATOR

RFSA3013
75W Voltage
Controlled
Attenuator
RFSA3013
75 VOLTAGE CONTROLLED ATTENUATOR
Package Style: QFN, 16-Pin, 0.9mm x 3mm x 3mm
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Features
 Patent Pending Circuit
Architecture
 Broadband 50MHz to 3000MHz
Frequency Range
 30dB Attenuation Range
 +50dBm IIP3 Typical
 +80dBm IIP2 Typical
 Low Distortion -65dBc CSO and
-70dBc CTB for 112 Channel
39dBmV Input
 High 1dB Compression
Point >+30dBm
 Low Supply Current 1mA Typical
 5V Power Supply
 Linear in dB Control
Characteristic
 Internal Temperature
Compensation
 Class 1C ESD (1000V)
 Complete Solution in a Small
3mm x 3mm, QFN Package
 3.3V Version Available
RFSA3023
Applications
 Cable Modems
 CATV
 High Linearity Power Control
GND 1
NC 2
CONTROL
BLOCK
RFIN 3
NC 4
ATTEN
5
6
7
8
12 GND
11 NC
10 RFOUT
9 NC
Functional Block Diagram
Product Description
RFMD's RFSA3013 is a fully monolithic analog voltage controlled attenuator (VCA) featuring
exceptional linearity over a typical temperature compensated 30dB gain control range. It incor-
porates 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 of the control
voltage versus gain is selectable. The RFSA3013 draws a very low 1mA current and is packaged
in a small 3mm x 3mm QFN. This attenuator is matched to 75 over its rated control range and
frequency with no external matching components required. Typical VCAs in this performance
category have poor inherent attenuation versus temperature and poor nonlinear attenuation
versus control voltage characteristics. To correct these shortcomings, other VCAs require exten-
sive off chip analog support circuitry that consume valuable PCB area and additional DC power.
This game changing product incorporates the complete solution in a small 3mm x 3mm QFN
package that reduces the footprint by 20X in area and reduces the DC power by 10X over con-
ventional PIN diode approaches.
Ordering Information
RFSA3013SR
7” Sample reel with 100 pieces
RFSA3013SQ
Sample bag with 25 pieces
RFSA3013TR7
7” Reel with 2500 pieces
RFSA3013PCK-410 50MHz to 3000MHz PCBA with 5-piece sample bag
DS120419
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
BiFET HBT
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark 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. ©2012, RF Micro Devices, Inc.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
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