| 中频解调电路中的I^2C总线接口电路 |
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| 引用本文： | 韩红娟,李富华,王汉祥,谢卫国.中频解调电路中的I^2C总线接口电路[J].现代电子技术,2010,33(12):1-4. |
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| 作者姓名： | 韩红娟 李富华 王汉祥 谢卫国 |
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| 作者单位： | 苏州大学,电子信息学院,江苏,苏州,215021 |
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| 基金项目： | 2007 姑苏创新创业领军人才项目 |
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| 摘 要： | 为了简化中频解调电路的外围接口电路，缩小芯片面积，提高芯片的通用性和可靠性，在I^2C总线数据传输协议的基础上，设计一个兼容I^2C协议的中频解调接口电路。为了防止芯片地址冲突，增加了4位地址选择位，并重点对接口电路的状态机与控制逻辑进行优化设置。仿真结果表明，该电路功能正确，可靠性高，可广泛用于TV，VTR，PC，STB等方面。
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| 关 键 词： | 中频解调 I^2C总线 接口电路 状态机 控制逻辑 |
I2C Bus Interface Circuit Applied in IF-PLL Demodulation |
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| HAN Hong-juan,LI Fu-hua,WANG Han-xiang,XIE Wei-guo.I2C Bus Interface Circuit Applied in IF-PLL Demodulation[J].Modern Electronic Technique,2010,33(12):1-4. |
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| Authors: | HAN Hong-juan LI Fu-hua WANG Han-xiang XIE Wei-guo |
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| Affiliation: | HAN Hong-juan,LI Fu-hua,WANG Han-xiang,XIE Wei-guo(School of Electronics and Information,Soochow University,Suzhou 215021,China) |
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| Abstract: | An interface circuit compatible with I2C communication protocol applied in IF-PLL demodulation was designed based on the I2C bus communication protocol,in order to simplify peripheral interface circuit of IF-PLL demodulation circuit,reduce its area,improve its universality and stability.There are four possible slave addresses available for avoiding conflicts in real application with other devices.The state-machine and control logic were devised and optimized chiefly.The results of simulation prove that the ... |
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| Keywords: | IF-PLL demodulation I2C bus interface circuit state-machine control logic |
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