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RF Micro Devices® Press Release - November 29, 2011

 RFMD Intros RFSA4013 and RFSA4023
Temperature-Compensating Attenuators

RFMD New Product Alert
Contact:
Irma Swain
Sr. Manager, Communications
RFMD
336-931-6653
iswain@rfmd.com

PDF • 简体中文 繁體中文 한국어

 
FOR IMMEDIATE RELEASE NOVEMBER 29, 2011


RFMD's new RFSA4013 and RFSA4023 are fully monolithic analog Temperature-Compensating Attenuators (TCAs) featuring exceptional linearity over their entire gain control range. These TCAs are designed to offset the gain reduction of an RF component over temperature without the need for closed loop feedback. Three customer selectable temperature coefficients make these TCAs a flexible solution for RF lineups. Each attenuator incorporates revolutionary new circuit architecture that solves a longstanding industry problem with regards to attenuator architecture: high IP3, low DC current, and broad bandwidth. Traditional approaches for linear temperature-compensating devices require expensive co-fired ceramics with temperature-sensitive materials or current-hungry PIN diodes with elaborate area consuming control circuits. The RFSA4013 and RFSA4023 only require a single supply voltage and two logic bits to set the control attenuation slope versus temperature. Each TCA draws a very low 1mA current and is packaged in a small 3mmx3mm QFN. These attenuators are internally matched to 50Ω over their rated control range and frequency.

RFSA4013 and RFSA4023 response graph    RFSA4013 and RFSA4023 block diagram

 

RFSA4013 and RFSA4023 are fully monolithic analog Temperature-Compensating Attenuators (TCAs)Features
  • Innovative Circuit Architecture
  • Broadband 50 MHz to 4000 MHz Frequency Range
  • Selectable Attenuation Slopes versus Temperature
  • IIP3: +55 dBm
  • IIP2: +85 dBm
  • P1dB: >+30 dBm
  • Typical Supply Current: 1 mA
  • Power Supply: 5 V (RFSA4013), 3.3 V (RFSA4023)
Applications
  • Cellular, 3G Infrastructure
  • WiBro, WiMax, LTE
  • Microwave Radio
  • High-Linearity Level Control
This product is now available for purchase. Pricing begins at $3.94 each for 100 pieces. For more information on RFSA4013, visit

https://estore.rfmd.com/RFMD_Onlinestore/Products/RFMD+Parts/PID-P_RFSA4013.aspx?DC=25. For more information on RFSA4023, visit

https://estore.rfmd.com/RFMD_Onlinestore/Products/RFMD+Parts/PID-P_RFSA4023.aspx?DC=25.

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Posted  11/29/2011
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