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RFSA3043SQ Datasheet(PDF) 1 Page - RF Micro Devices |
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RFSA3043SQ Datasheet(HTML) 1 Page - RF Micro Devices |
1 / 18 page RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 DS160619 For sales or technical support, contact RFMD at +1.336.678.5570 or customerservice@rfmd.com. RF MICRO DEVICES ® and RFMD® 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. ©2013, RF Micro Devices, Inc. 1 of 18 RFSA3043 75Ω Voltage Controlled Attenuator 5MHz to 3000MHz RFMD’s RFSA3043 is a fully monolithic analog voltage controlled attenuator (VCA) featuring exceptional linearity over a typical temperature compensated 30dB gain control range. 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 of the control voltage versus gain is selectable. The RFSA3043 draws a very low 2mA current and is packaged in a small 3mm x 3mm QFN. This attenuator is matched to 75 Ω 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 short-comings, other VCAs require extensive off chip analog support circuitry that consumes 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 20x in area and reduces the DC power by 5x over conventional PIN diode approaches. Functional Block Diagram Ordering Information RFSA3043SQ Sample bag with 25 pieces RFSA3043SR 7" Reel with 100 pieces RFSA3043TR7 7" Reel with 2500 pieces RFSA3043PCK-410 5MHz to 3000MHz PCBA with 5-piece sample bag Package: QFN, 16-pin, 3.0mm x 3.0mm Features ■ Patent Pending Circuit Architecture ■ Broadband 5MHz to 3000MHz Frequency Range ■ 30dB Attenuation Range ■ +50dBm Input IP3 Typical ■ +80dBm Input IP2 Typical ■ Low Distortion -80dBc CSO and -75dBc CTB for 132 Channel 38dBmV Input ■ High 1dB Compression Point >+30dBm ■ Low Supply Current 2mA Typical ■ 3V to 5V Power Supply ■ Linear in dB Control Characteristic ■ Internal Temperature Compensation ■ Class 2 ESD (2000V) ■ Complete Solution in a Small 3mm x 3mm, QFN Package Applications ■ Cable Modems ■ CATV ■ High Linearity Power Control RFSA3043 |
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