高速电路设计进阶-畅读网

　　　　

高速电路设计进阶

作者：王剑宇

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内容简介:

本书从设计实践的角度出发，重点围绕电源电路设计、信号完整性设计、DDRx SDRAM存储器应用与设计等几个方面，详细介绍在工作过程中需要掌握的各项技术，并结合具体案例，强化了设计要点。本书避开纯理论的讲述和复杂公式的推导，结合设计实例，用通俗易懂的语言将复杂的高速电路设计介绍给读者。

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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 45 LIMIT 1 [ RunTime:0.002522s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 11 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.005749s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 14 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.006702s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1746625502 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:3.587829s ]

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