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11 February 2009


RFMD adds to RF switch portfolio

RF Micro Devices Inc (RFMD) of Greensboro, NC, USA has introduced three new multi-throw RF switches (RF1126, RF1131 and RF1132) designed to operate in multiple markets, including antenna tuners, CDMA handsets and 3G multimode devices.

The RF1126 is a low-power, single-pole double-throw (SPDT) symmetric switch that offers insertion loss and linearity performance suitable for signal routing and antenna switching applications. The RF1131 and RF1132 are single-pole three-throw (SP3T) symmetric switches designed for applications requiring high linearity performance, such as CDMA handsets and 3G multimode devices. The RF1131 and RF1132 are pin-for-pin compatible and offer performance trade-offs between linearity and insertion loss, enabling designers to select a switch based upon a specific application's performance priorities, says the firm.

The three new products are based on RFMD's GaAs pHEMT manufacturing capabilities and leverage proprietary switch technology developed for use in the firm’s high volume cellular transmit modules.

RF1126 technical features:

  • 2.0 x 1.3 x 0.35 mm QFN package
  • Very low insertion loss
  • Ideal for use in multi-band CDMA Rx diversity applications

RF1131 and RF1132 technical features:

  • 2.0 x 2.0 x 0.55 mm QFN package
  • Low insertion loss: RF1131 - 0.32 to 0.49 dB, RF1132 - 0.47 to 0.69 dB
  • Excellent Linearity (IIP3): RF1131 - 59 dBm (Cell) / 62 dBm (PCS)

RF1132 - 65 dBm (Cell) / 63 dBm (PCS)

  • Ideal for use in multi-band CDMA single routing applications

Samples of the RF1126, RF1131 and RF1132 are available now.

RFMD will showcase its portfolio of cellular front end products at the 2009 GSMA Mobile World Congress in Barcelona, Spain.

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