摘要
基于开关电容技术的FPAA(现场可编程模拟阵列)技术已取得了进一步提高,一些成熟的FPAA芯片相继推出。文中尝试使用FPAA芯片(AN221E04)实现一个全新概念的调节简便、成本低的音频均衡器设计。基于FPAA技术的巴特沃兹开关电容滤波器来实现音频均衡器滤波系统,并利用多个AN221E04芯片构建FPAA,与89S51 MCU(微控制器)及Serial EEPROM构建一个音效调节参数实时静态和动态可调的音频均衡器。
The FPAA （field programmable analog array） technology based on S/C （switch capacitor） technology has achieved significant development. Presently, several commercial FPAA integrated circuits are＇ pushed out. This paper tries to use AN221E04 FPAA chip to realize a new concept of audio equalizer design, and use muhi-FPAA AN221E04 chips to construct FPAA array, which are then combined with 89S51 MCU and Serial EEPROM to implement a sound parameters static and dynamic reconfignrable new concept audio equalizer.
出处
《电子工程师》
2008年第7期38-40,共3页
Electronic Engineer
