BAL-NRF01D3

Balun Overview

STMicroelectronics BAL-NRF01D3 is an ultraminiature balun featuring a 50 Ω nominal input and conjugate matching for Nordic Semiconductor nRF24LE1, nRF24AP2-1CH, nRF24AP2-8CH, nRF51422-QFAA (build code CA/C0), nRF51822-QFAA (build code CA/C0), and nRF51822-QFAB (build code AA/A0). It integrates a matching network and harmonics filter on a non-conductive glass substrate using IPD technology. The device offers low insertion loss, low amplitude imbalance, and low phase imbalance with a footprint under 1.5 mm².

Balun Feature Summary

• Integrates matching network and harmonics filter in an ultraminiature package
• Customized impedance matching for specific Nordic Semiconductor RF transceivers
• Utilizes IPD technology on a non-conductive glass substrate to optimize RF performance

Balun Applications

• nRF24LE1 QFN-32 pins circuits
• nRF24AP2-1CH and nRF24AP2-8CH modules
• nRF51422-QFAA (build code CA/C0) applications
• nRF51822-QFAA (build code CA/C0) and nRF51822-QFAB (build code AA/A0) designs

Balun Procurement Notes

Verify the specific build code of the target Nordic Semiconductor chip, such as CA/C0 or AA/A0, to ensure compatibility with the BAL-NRF01D3's customized impedance matching. Confirm that the application requires the integrated harmonics filter provided by this component. Cross-reference the official STMicroelectronics datasheet for precise mechanical dimensions and thermal characteristics before finalizing the design.

Balun Selection Notes

Select the BAL-NRF01D3 when designing for Nordic Semiconductor chips like the nRF24LE1 or nRF51 series requiring a compact solution. This component is suitable for space-constrained PCB layouts due to its small footprint under 1.5 mm². It provides optimized RF performance through low insertion loss and balanced amplitude/phase characteristics, eliminating the need for discrete matching components.

Balun Part Context

The BAL-NRF01D3 belongs to STMicroelectronics' family of ultraminiature baluns designed for wireless communication applications. It utilizes IPD technology on a glass substrate to achieve high RF performance in a minimal form factor. This component is distinct from similar parts like the BALF-NRF01D3, which targets different build codes and lacks the integrated harmonics filter found in the BAL-NRF01D3.

Balun Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Ensure the replacement matches the specific Nordic Semiconductor build codes and maintains the required 50 Ω nominal input impedance.