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2.4Ghz RF Wireless USB Solution Circuit Diagram and Principles

2.4G Hz Wireless Dongle (USB Receiver) Operational Principle

1) CPU,SE96CDT is a series of 8-bit Universal Serial Bus RISC architecture microcontroller. Opration frequency is 12MHz. It needs an external 12MHz crystal for reference frequency;this crystal is also used for RF module.This chip is responsible to control RF-Baseband Transceiver(8713T).

2) USB PORT,connect with stand USB interface of pc.

3) E2PROM,24C02,2048 bits of serial electrically erasable and programmable read_only memory(EEPROM) organized as 256 words of 8 bits each.The device is optimized for use in many industrial and commercial applications where low-power operation are essential.

4) 2.4 GHz ISM Band Transceiver/Framer,8713T which is a low-cost,fully inegrated CMOS radio frequency(RF) transceiver block,combined with a 64-byte buffered framer block.It contains transmit,receive,VCO and PLL functions,including an on-chip channel filter and resonator.

5) ANTENNA, The antenna is typically fed from the end of the monopole section by a plated through-hole via which is in turn connected to the RF output on the 2.4GHz band.


2.4G Hz Wireless Transmitter (Mouse) Operational Principle

1) CPU,EM78447 have an 8-bit microprocessor with low-power and high-speed CMOS technology. Operation frequency is 4MHz.It needs an external 12MHz crystal for reference frequency;this crystal is also used for RF module.This chip is responsible to control RF-Baseband Transceiver(8713).

2) E2PROM,24C02,2048 bits of serial electrically erasable and programmable read_only memory(EEPROM) organized as 256 words of 8 bits each.The device is optimized for use in many industrial and commercial applications where low-power operation are essential.

3) 2.4 GHz ISM Band Transceiver/Framer,8713 which is a low-cost,fully integrated CMOS radio frequency(RF) transceiver block,combined with a 64-byte buffered framer block.It contains transmit,receive,VCO and PLL functions,including an on-chip channel filter and resonator.

4.OPTICAL SENSOR,with DSP integration chip that serves as a non-mechanical motion estimation engine for implementing a computer wireless mouse.

5.ANTENNA, The antenna is typically fed from the end of the monopole section by a plated through-hole via which is in turn connected to the RF output on the 2.4GHz band.

 Appendix

2.4G Hz Wireless Dongle (USB Receiver) Circuit Diagram

2.4G Hz Wireless Transmitter  (Mouse)  Circuit Diagram

You may download pdf  format of  the 2.4G Hz RF Wireless USB Solution Circuit Diagrams here:

2.4G Hz Wireless Dongle (USB Receiver) Circuit Diagram

2.4G Hz Wireless Transmitter (Mouse) Circuit Diagram