摘要
结合项目过程遇到的一个时分多址噪音问题,系统阐释了时分多址噪音发生的机理和常用解决途径,但是这些常用的措施并不能解决该项目的时分多址噪音问题。通过该项目调试实践,发现除了相关音频单元部分采用星形接地外,其他部分模拟地和数字地不进行分割的综合策略,很好的解决了时分多址噪音问题。最后,进一步对混合数字信号系统接地策略的选择进行了总结,以期在混合信号系统设计中能够获得最佳性能。
According to the matter of TDMA noise in the project process,it is systematically explained the fundamentals and usual solutions of TDMA noise. Unfortunately,these common measures can＇t play a part in our mobile terminal design. With the conscientious researches on our task,a perfect method was found to solve this problem which was that the star ground connection in partial audio circuits and the ground plane design were organically employed. At last,the main measure of ground connection was summarized in mixed signal system in order to obtain the best system performance.
出处
《电子器件》
CAS
北大核心
2015年第1期115-121,共7页
Chinese Journal of Electron Devices
关键词
混合信号系统
星形接地
时分多址噪音
突发脉冲序列周期
mixed signal system
star ground connection
time domain multiple access（TDMA） noise
burst period
