* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
* : Products list (parametric search)
This webpage doesn't work with Internet Explorer. Please use the latest version of Google Chrome, Microsoft Edge, Mozilla Firefox or Safari.
请输入3个以上字符
The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.
请输入3个以上字符
为稳定电路运行,建议使用去耦电容。因为如果噪声等交流分量叠加在提供给通用逻辑IC的电源电压上,可能会导致电压波动和电路运行不稳定。
通过在尽可能靠近IC引脚的情况下连接去耦电容,可以向IC提供稳定且几乎无噪声的供电电压。开关过程中产生的尖峰电流导致VCC、GND电位波动,进而造成输出波形出现振铃和速度延迟。因此,应保持电源线应对高频的较低阻抗。
具体而言,VCC和GND地线应粗而短,并且最好在每个IC的电源引脚附近插入一个去耦电容(0.01 µF至0.1 µF),用作高频滤波器。在放置去耦电容时尽可能将其靠近每个IC。距离较远的放置不仅会降低效果,还可能辐射IC的开关噪声。.
对于低频滤波,每块板通常使用10µF至100µF电容。(图1)
以下文档也包含相关信息。