Design guidelines for the NXP IW416 Wi‑Fi 4 and Bluetooth 5.1 wireless SoC, covering power, clock, interfaces, PCB layout and stackup.
The NXP IW416 Design Guide provides detailed recommendations for designing a PCB around the IW416 wireless system‑on‑chip. It covers power‑supply selection, clock source options, reset configuration, host interfaces (SDIO, UART) and RF front‑end design for both QFN and WLCSP packages.
The document also includes PCB layout best practices, recommended stack‑up configurations, and legal and security notices. It is intended for hardware designers who need to integrate the IW416 into their products and want to follow NXP’s recommended design methodology.
| VCORE (core supply) | 1.05 V (normal), 0.8 V (sleep) |
|---|---|
| AVDD18 (analog supply) | 1.8 V |
| VPA (Wi‑Fi PA supply) | 2.2 V |
| VIO (digital I/O supply) | 1.8 V or 3.3 V |
| VIO_SD (SDIO supply) | 1.8 V |
| VIO_RF (RF supply) | 1.8 V |
The IW416 can use a crystal or an external oscillator as the main clock, and it also offers an optional sleep clock for low‑power operation.