iPhone is one of the most popular mobile phone systems in the world with high stability due to its closed platform design. For generic mobile phone system like Android, the USB accessories are easy to connect to the phone with USB type C cable. It’s hard to implement the same design without specific treatment on USB with iOS devices. Alcorlink offers a market proven MFi (Made for iPhone) ISP solution that can interface with Apple accessories authentication processer (Coprocessor) to make camera application possible on iPhone. AK3828M and AK52800 is a unique ISP design that target low power, low system cost for iPhone external camera accessory.