VMIVME-7648-540工控模块卡件
通过导电管芯附着粘合剂
连接到管芯基板没有直接电(线)连接到任何引脚管芯衬底和器件接地之间存在寄生结因此强烈建议直接连接到设备引线(例如)处的地或者可以保持浮动(即没有电气连接)但不建议这样做不得连接至接地以外的任何电位 –年月–年月修订产品文件夹链接: 提交文档反馈版权所有©– /敏感性射频干扰和电磁干扰会降低任何集成电路的性能因为器件内部的几何尺寸较小在存在产生具有显著高频能量含量(>)的信号的电路源的应用中必须小心确保这不会影响设备调节器如果调节器的输入侧存在/噪声(例如输入源来自开关调节器输出的应用)则必须在设备的引脚处使用良好的陶瓷旁路电容器如果负载连接到高速切换的设备输出(如时钟)则负载所需的高频电流脉冲必须由设备输出上的控制器提供由于调节器环路的带宽小于控制电路不能响应高于该频率的负载变化这意味着设备在以上频率下的有效输出阻抗仅由
输出计算器
确定在负载高速切换的应用中设备的输出可能需要与负载进行隔离建议在输出控制器和负载之间放置一些电感并将良好的旁路控制器直接放置在负载上布局在高噪声环境中也至关重要因为/很容易直接辐射到迹线中在可能的情况下噪声电路应与清洁电路隔离并通过串联接地在频率下接地平面开始看起来是感应的/会导致接地平面上的接地反弹在多层应用中应注意布局以便噪声功率和接地平面不会直接辐射到承载模拟功率和接地面的相邻层输出噪声噪声以两种方式指定:斑点噪声或输出噪声密度是在特定频率(以带宽测量)下在调节器输出处测量的所有噪声源的总和这种类型的噪声通常作为频率的函数绘制在曲线上
Adhesion through conductive tube core
There is no direct electrical (wire) connection to the core substrate. There is a parasitic junction between the core substrate and the device grounding. Therefore, it is strongly recommended to directly connect to the ground at the device lead (for example) or keep it floating (that is, there is no electrical connection), but it is not recommended to do so. It is not recommended to connect to any potential other than the ground
Sensitive radio frequency interference and electromagnetic interference will reduce the performance of any integrated circuit because the internal geometric dimensions of the device are small. In applications where there is a circuit source that generates a signal with a significant high frequency energy content (>), care must be taken to ensure that this does not affect the device regulator if there is/noise on the input side of the regulator (such as applications where the input source is from the output of the switch regulator) Good ceramic bypass capacitors must be used at the device pins. If the load is connected to the high-speed switching device output (such as the clock), the high-frequency current pulse required by the load must be provided by the controller on the device output. Since the bandwidth of the regulator loop is less than that of the control circuit, it cannot respond to load changes higher than this frequency, which means that the effective output impedance of the device at the above frequencies is only
Output Calculator
It is recommended to place some inductance between the output controller and the load and place a good bypass controller directly on the load. It is also important to layout in a high noise environment because/it is easy to directly radiate into the trace. When possible, the noise circuit should be isolated from the clean circuit and grounded in series at the frequency It is inductive/will cause ground bounce on the ground plane. In multi-layer applications, attention should be paid to the layout so that the noise power and ground plane will not directly radiate to the adjacent layers carrying analog power and ground plane. The output noise noise is specified in two ways: speckle noise or output noise density is at a specific frequency (measured in bandwidth) The sum of all noise sources measured at the output of the regulator. This type of noise is usually plotted on the curve as a function of frequency