⚡ 本页包含 AI 生成的分析内容，仅供参考
本文提出一种用于汽车触摸屏的模拟前端（AFE）集成电路，通过流水线双频调制和Sine2波形技术有效降低辐射电磁干扰（EMI），功耗仅10.5mW，解决了汽车触摸屏干扰其他电子系统的问题。
Samsung Electronics, Hwaseong, Korea 1 2 Recent automobiles increasingly incorporate touch-screen interfaces instead of traditional buttons and knobs. These automotive touch-screen sensors offer versatile functionality and flexible interface that supports software-driven updates over time. However, as illustrated in Fig. 6.10.1 (top), touch-screen sensors can emit significant electromagnetic (EM) radiation, which may have an adverse effect on other electronic components and systems within the vehicle, potentially leading to serious malfunctions or compromised vehicle safety [1,2]. According to the EM interference (EMI) standard CISPR 25 for automobiles, a touchscreen sensor must not emit EMI that exceeds specified limits in the frequency range above 150kHz. However, the typical driving signal frequency applied to the electrodes of the touchscreen panel (TSP) ranges from 200 to 500kHz [3,4]. Each electrode in the TSP acts like an
Seokhyeon Moon1, Jonghang Choi1,2, Jun-Eun Park1
Sungkyunkwan University, Suwon, Korea