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STMicroelectronics BAL-NRF01D3/NRF02D3 50Ω Balun Transformers

STMicroelectronics BAL-NRF01D3/NRF02D3 50Ω Balun Transformer is an ultra miniature balun. They both integrate a matching network and harmonics filter. Matching impedance has been customized for the following Nordic Semiconductor circuits: nRF24LE1 QFN-32 pins, nRF24AP2-1CH, nRF24AP2-8CH, nRF51422, nRF51822, nRF51422-CEAA and nRF51822-CEAA. They use STMicroelectronics IPD technology on non-conductive glass substrate which optimize RF performances. These Balun Transformers have been tested and approved by Nordic Semiconductor in their nRFgo modules.

Features

  • 50Ω nominal input / conjugate match to Nordic Semiconductor chips, including NRF24, NRF51822, and NRF51422
  • Low insertion loss
  • Low amplitude imbalance
  • Low phase imbalance
  • RF BOM and area reduction
  • Small footprint
    • <1.5mm2 (BAL-NRF01D3)
    • <1.2mm2 (BAL-NRF02D3)
  • Low profile
    • <595μm after reflow (BAL-NRF01D3)
    • <560μm after reflow (BAL-NRF02D3)
  • High RF performance

Applications

  • Optimized for Nordic's chip set
  • 2.45GHz impedance matched balun filters

Additional Resources

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Published: 2013-04-09 | Updated: 2022-03-11