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Ensigma Whisper Series5 RPU (Radio Programmable Unit) is a highly flexible platform for low-power wireless standards such as Wi-Fi, Bluetooth and IEEE 802.15.4. Specifically designed to meet the communications requirements for the emerging low-power consumption markets such as the Internet of Things (IoT) and wearables, Whisper Series5 implements all of the connectivity requirements of tomorrow complex low-power SoCs. An ultra-small form factor solution with minimal external components, Whisper Series5 offers a low cost solution for mass volumes while offering flexibility in size, form, and function. With PowerGearing low power consumption techniques, advanced design techniques and process technology enabling lowest active and idle power, Whisper Series5 extends system battery life while maintaining consistent connectivity and still provides a rich set of features. Whisper Series5 RPUs are available in a wide range of performance capabilities, from single-standard to multi-standard implementations. The Integrated MIPS processor can be scaled as required to enable support for an integrated host stack, removing the need for a separate host processor thereby reducing both solution size and cost. Ensigma Whisper Series5 RPUs give the perfect platform for low-power connectivity in consumer-class products.


  • Complete low power solution
  • Scalable MIPS processor enables integrated stack, removing the need for a separate host processor
  • Easy integration into an SoC


  • Internet of Things
  • Wearables
  • Connected consumer products
  • Sensors

Block Diagram


  • Low Power
  • Integrated MIPs processor
  • Scalable architecture allows single or multi-standard implementations
  • Industry-leading performance
  • Small die area

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