Research On The Wireless Digital Full-Duplex Audio Headset Transceiver

With the high-speed development of the radio microelectronics technology and the craft of the integrated circuit, RF wireless communication technology has been widely used in the areas of the consumer electronics and the industrial control. The paper realizes a Wireless Digital Full-Duplex Audio Headset Transceiver using the RF technology.The paper presents the hardware design of RF circuit, the solution of the EMC, TDD Full-Duplex communication protocol and the audio codec, Continuously Variable Slope Delta modulator.The structure of the paper as follows:Chapter 1 introduces the development of the communication technology firstly, then enumerates some wireless technologies in the short range communication. The significance of study is stated, and the main contents of this paper are presented.In Chapter 2, the hardware design of the control module and the RF module are discussed. The principle of the CVSD which audio module adopts and the realization on C8051f023 is introduced.In Chapter 3, the design of RF module is discussed in detail from the research on CC1020, the RF power amplifier and the antenna. According to the relative theory of the antenna and the circuit theory, the parameters of the whip antenna and the formulas of wireless communication range are given. The solution of the EMC is...