Dear Qian Fusen,
I confirmed that QN3000Z, this product family is customer specific.
It means NXP produces these parts under specific conditions for specific customer
all information is confidential and can only be obtained by that company.
That's why this part cannot be found on our website, we don't have the datasheet can be shared with the third party.
Please accept our apologies for inconvenience.
Have a nice day.
