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| NXP TDA8004T智能卡接口解决方案 | |||||
作者：NXP 文章来源：本站原创 点击数： 更新时间：2007-8-22  |
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应用: IC card readers for banking Electronic payment Identification Pay TV  Fig 1. TDA8004T 方框图  Fig 2.应用电路图  注: (1) These capacitors must have a low ESR and must be placed near the IC (less than 1 cm). (2) One 100 nF with low ESR near pin 17. (3) One 100 nF or 220 nF with low ESR near contact C1 (less than 1 cm). (4) Contact C3 should be routed far from contacts C2, C7, C4 and C8 and, better, surrounded with ground tracks. (5) Straight and short connections between pin CGND, contact C5 and ground for the capacitors (no loop). 详情请上网: http://www.nxp.com/acrobat_download/datasheets/TDA8004AT_3.pdf http://www.nxp.com/acrobat_download/datasheets/TDA8004AT_3.pdf |
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