The best way to build a PCB first time right with KW47 (Automotive) or MCX W72 (IoT/Industrial)

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/*** 2024 October 15th latest disclaimers:

- KW47, MCX W72 are direct derivative from KW45 and MCX W71 - please bookmark this page for future update

- this article is for early enablement based on KW45, K32W148, MCX W71 and is pending updates up to wider releases of new KW47 and MCX W72 in 2025

-- Datasheet, Reference Manual and HW manufacturing files shared on request-- ***/

Please, find the important link to build a PCB using a KW47 or MCX W72 and all concerning the radio performances, low power and radio certification (CE/FCC/IC).

KW47 product NXP web page: pending release of KW47

MCXW72 product NXP web page: https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mc...

KW-MCXW-EVK getting started NXP web page pending release of KW47/MCXW72

KW47-LOC getting started NXP web page pending release of KW47/MCXW72

MCXW72-LOC getting started NXP web page pending release of KW47/MCXW72

HARDWARE

KW47 MCX W72 EVK board: preliminary attached

KW47 LOC Channel Sounding board - diagram: preliminary attached

KW47-MCXW72-EVK HW guideline: Available on request

HVQFN48 package specification: SOT619-17(D) pending release of SOT619-17(DD)

KW47-MCXW72-EVK User Manual pending release of KW47/MCXW72

Minimum BoM (attached file) >> KW45 applicable for KW47 waiting release of KW47/MCXW72

DCDC management guide (AN13831) : KW45/K32W148 - Power Management Hardware (nxp.com) KW45 applicable for KW47 waiting release of KW47/...

Design-In check list: see attached file at the bottom of this article

RF matching: S parameters (attached file) pending release of KW47/MCXW72

Information: “As RF behavior are dependent of PCB layout & manufacturing; PCB prototypes (based on NXP recommendations) will have to be fine-tuned to insure the expected qualified in RF is reached on the final productized platform.”

KW47 from KW45 hardware porting :

KW47 is pin to pin compatible with KW45. However from HW point of view, some components values will have to be adjusted like RF matching components values.

Other components around KW4x are not foreseen as to change based on current silicon validation.

Please also note some new muxing is in place to get new features of KW47 on pins. For instance on KW47 a second Flex CAN is available. See attached file

RADIO

RF report: KW45 and K32W148 RF System Evaluation Report for Bluetooth LE and K32W148 for 802.15.4 Applications ...pending release of KW47/MCXW72 - available ON DEMAND

Radio co-existence: Kinetis Wireless Family Products Bluetooth Low Energy Coexistence with Wi-Fi Application (nxp.com) p...

Distance performances: refer to attached file pending release of KW47/MCXW72

Antenna:

Compact Planar Antennas for 2.4 GHz Communication Designs and Applications within NXP EVK Boards

Antennas for Channel Sounding Applications

BLE connectivity test binary file: available in SDK on demand

Return loss (S11) measurement: How to measure the return loss of your RF matching (S11) part of the RF report (AN13728)

Loadpull: pending release of KW47/MCXW72

SW tools for RF trials:

IoT Tool box (mobile application)