摘要
4K原始数据转换成4路3G-SDI,需对音、视频进行分别处理。本文设计了一种I^2S音频数据处理电路,以I^2S协议为基础,使用HV2芯片和FPGA开发板,实现I^2S音频数据的传输,解决跨时钟域传输数据的问题。利用CTS生成器改善电源抑制,降低输出抖动和噪声性能。仿真测试表明音频数据能够被完整的传输。
In the experiment of converting4K raw data into4channels of3G-SDI,audio and video should be processed separately.An I^2S audio data processing circuit is designed.Based on the I^2S protocol,an HV2chip and an FPGA development board are used to implement the transmission of I^2S audio data,and the problem of transmitting data across clock domains is solved.Use the CTS generator to improve power supply rejection and reduce output jitter and noise performance.Simulation tests show that audio data can be transmitted completely.
作者
林嘉
陈素琼
苏凯雄
Lin Jia;Chen Suqiong;Su Kaixiong(College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108)
出处
《电气技术》
2018年第12期6-10,共5页
Electrical Engineering
基金
福建省省部级重大项目(2015H6014)
