Hello,
Hope you are doing well. I apologize for the inconveniences, but NXH3675 and enablement (documentation, software and boards) are available for select customers with an approved NDA.
For more information about the chips, technology and any related support, could you please contact one of our distributors available in the Distributor Network|NXP? They can not only help you with the NDA process, but also help you check if you can get documentation and the support they can offer you.
Regards,
Ricardo