预先规定的资源来帮助你的无线设备的设计满足监管要求
您的任务是设计一个无线链路,如Wi-Fi或ZigBee的放大器,用于在一个小产品。抛开传统的设计考虑成本,董事会空间,或电力消耗,你知道你也必须处理与监管合规授权的FCC在美国(和可比机构在其他地区),影响所有的无线设备。你有三个基本的方法来实现链接:
使用从许多供应商中选择的组件来创建收发器
使用参考设计采用供应商的组件和他们的建议BOM
使用一个经批准的,认证的“罐装”模块,您进入您的设计,它有一个数据接口在一边和天线端口上的其他。
Clearly, option #1 is the most challenging, but sometimes a preferred choice; option #2 is much easier with fewer likely headaches, although implementation, layout issues, and interactions can affect performance and compliance. Option #3 is the easiest, with the highest level of confidence and shortest time to market, and compliance should be a “no-brainer,” right?
Wrong. Even if the chosen module is fully approved, the final design in which it is used is not, and will need to pass certification tests. Issues such as antenna type and placement, power rail EMI, and other factors can result in failing the costly, time-consuming-type certification process and test, even with a validated module (Figure 1).
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