原理图如下所示，电路板只焊接了ADL5542部分和电源部分。焊接完成测试时发现输入输出有莫名其妙的振荡信号。
ADL5542输入端测试的信号如下图：（C6左侧）
ADL5542输出端测试信号如下图：（C7右侧）
ADL5542连接的其它IC均已经断开，整个电路板只焊接了ADL5542部分和电源部分，麻烦帮忙分析一下，什么情况会导致这样的振荡出现呢？
PS：焊接了10多片，都是这种现象，芯片也重新购买过，应该可以排除这部分的问题
I have designed a ADL5542 (Power Amplifier) PCB as per the specifications in the datasheet. I want to test the performance and ensure that the PCB works fine before I link them up with other PCBs. So, can someone guide me as to what tests/equipment I…
I want to design a PCB which uses AD8318 and ADL5542. Unfortunately, I am unable to find the Eagle libraries for these ICs. Does anyone have these libraries?
Thanks.
Unfortunately, there isn't a drop in replacement for the ADL5602 that would be functional upto 6GHz. The ADL5542 is a comparable gain block that has a max operational frequency of 6GHz, but the device is packaged in a 8-lead LFCSP.
Hi Rich,
1. The modulus is related to the channel spacing or frequency steps. Gory details on how to calculate are in the ADF4153 etc. fractional N data sheets.
So as you step through channels you step through N, N+1, N+2 etc divided by the modulus…
The part is a Panasonic, mulitlayer ceramic capacitor. Part number: ECJ-2VF1C105Z. It is an SMD device. Given the frequency range of operation of the ADL5542, all components are SMD devices. Any quality multilayer cermaic capacitor maybe used. It doesn…
您好！
相关解决方案和产品请见附件内文档。
此次在线研讨会阐释了自收购Hittite Microwave后ADI的全新及扩展的RF能力。我们会举例说明ADI涵盖的更宽频谱范围及其真DC的重要性。信号链外的性能同样至关重要，展示低噪声、高稳定性控制和电源元件如何改善总体RF信号性能，并将讨论完整的信号链示例。
主要讨论天线到比特和比特到天线，信号链覆盖，即刚才提到的从真正的DC 0 Hz到110 GHz的频谱覆盖。 我会简要介绍其中涉及到的各类设备。
为什么良好的RF需要良好的电源，大家知道，RF需要干净的电源。然后，最后会和大家讨论“不止是芯片…
ADI工作于2.4GHz频段的射频放大模块产品有很多，请见附件内表格，供您参考。