Block Diagram

DK-1101RH
2.4G SOC KeyBoard
U3，
TheHS6200 is a single chip 2.4GHz transceiver
with an embedded baseband protocol engine
2.5V power IC
U2
The XT1871B252VR Tis DC/DC
U1
The YSM2145 Is a 8 Bit General Purpose OTP MCU
Y1
16MHZ crystal for U3 Work clock;
AAA
Dry cell
Power IC
U2
Y1 crystal 16MHZ
RF IC U3
MCU IC
U1
Keys
PCB
Antenna
USB
Dongle
PCB
Antenan
PC
LED
Wireless KeyBoard Block Diagram