RE: Question about nRF54L15 QFN48 four layer PCB

SwRa — Tue, 24 Jun 2025 12:19:52 GMT

No problem 🙂

-Swathy

RE: Question about nRF54L15 QFN48 four layer PCB

Jgong — Tue, 24 Jun 2025 01:20:30 GMT

Hi Swathy

Thanks for your reply and suggest ！

Best Regards

James.

RE: Question about nRF54L15 QFN48 four layer PCB

SwRa — Fri, 20 Jun 2025 14:12:45 GMT

Hi James,

To ensure good RF performance when designing PCBs, it is highly recommended to use the PCB layouts and component values provided by Nordic Semiconductor.: https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/chapters/ref_circuitry.html#ariaid-title6

The radio on the nrf54L is very sensitive and using 4 layer PCB and the exact layout is recommended to achieve the performance noted in the product datasheet. There is no official two-layer reference design for nRF54L QFN48

Do not reuse nRF52832-QFAA RF designs for nRF54L QFAA. Always follow the nRF54L reference design for best results and compliance. The components in the RF section was finalized following multiple reviews for the best results. For applications like Find My or BLE UART, you should still use the provided reference design to ensure compliance and performance.

Best Regards,

Swathy