BALF-WL-00D3

Overview

The BALF-WL-00D3 is an ultra-miniature balun integrating a matching network, balun, and harmonics filter. It features a nominal input impedance of 50 Ω with a conjugate match to the STM32WL module. The device operates within a minimum frequency range of 862 MHz and exhibits an insertion loss of 0.95 dB. Constructed using IPD technology on a nonconductive glass substrate, it offers a low profile of ≤ 630 μm after reflow.

Feature Summary

• Integrates matching network, balun, and Tx harmonics filter for RF BOM reduction
• Optimized for STM32WL sub-GHz wireless microcontrollers in high and low power modes
• Utilizes IPD technology on a nonconductive glass substrate for optimized RF performance
• Provides deep Tx rejection harmonic filtering and low insertion loss

Applications

• Module integration for STM32WL sub-GHz wireless microcontrollers
• High power mode operation in sub-GHz transceivers
• Low power mode operation in sub-GHz transceivers
• RF front-end design requiring area reduction

Procurement Notes

Verify component authenticity by checking for STMicroelectronics branding and ECOPACK2 compliance markings. Confirm package integrity and absence of physical damage before soldering. Ensure storage conditions align with manufacturer specifications to maintain reliability. Cross-reference datasheet revision dates with procurement documentation to ensure version accuracy.

Selection Notes

Select this component specifically for designs utilizing STM32WL sub-GHz microcontrollers. The integrated matching network eliminates external components, reducing board space. Verify that the operating frequency falls within the specified range. Consider the low profile requirement for compact module packaging applications.

Part Context

This balun is part of STMicroelectronics' solution for sub-GHz wireless applications. It complements the STM32WL series microcontrollers by providing essential RF signal conditioning. The device supports both high and low power transmission modes, facilitating efficient module design.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Direct replacement requires verification of impedance matching and frequency compatibility with the target system.

FAQ

What technology is used for the BALF-WL-00D3 construction?

The device uses STMicroelectronics IPD technology on a nonconductive glass substrate.

Does the BALF-WL-00D3 include harmonic filtering?

Yes, it integrates a dedicated Tx rejection harmonic filter.