Block Diagram

< KEYBOARD BLOCK DIAGRAM>

1. Cable mode 1-1, the wire mode USB-Type-C data cable from the host, the

keyboard connected to a keyboard MCU BYK916 is to be sent when the USB-

C data cable from the host command to send . 1-2, USB connection— Type-

C data can also be charged to the battery .

2. 2.4G model form 2-1 MCU BYK916 a through RF BK3632 on by processing

and antenna through are sent 2.4G receiver by being treated in the host by is

completed .

3. Bluetooth mode 3-1the command MCU BYK916 an over a host and

transmitted RF BK3632 is , and processing the antenna through being

transmitted Bluetooth will be processed .

The receiver receives signals from the keyboard through the antenna, processes them

by the MCU(CX5166), and transmits them to the computer via D+ and D- USB.