装。详细信息如下[5.5V、1MHz、2A 同步降压转换器TMI3410_拓尔微电子股份有限公司 (toll-semi.com)] 在使用过程中，从3.3V降压到1.1V发现SW管脚输出的pwm波下冲
2023-05-14 01:47
source from the new source wizard and I select IP core and I try to add PLL the toll says
2019-03-04 12:15
需要有关FPGA封装兼容性的信息。 如果有两个FPGA并且两个FPGA的封装相同，那么是否意味着放置FPGA的电路板可以与相同封装的另一个FPGA一起使用？问候Irshan以上来自于谷歌翻译以下为原文The information about the package compatibility of FPGAs is required. If there are two FPGAs and package of both the FPGAs are same then does it mean that the board in which a FPGA is placed can be used with the other FPGA of same package?RegardsIrshan
2019-01-11 10:40
任何人都可以告诉我“错误”是什么意思（除了显而易见的！）。当打开HP3458A或从前面板执行“测试”功能时，我会得到它。完成ROM和RAM测试以及启动“Slave测试”时会出现“错误”消息。我有两个3458A，当它放弃时，它说“自我测试失败”;另一个未能达到“VDC”状态。如果它超出了用户的修复范围，你可以告诉我在哪里需要发送它们才能得到修复，谢谢。谢谢 以上来自于谷歌翻译 以下为原文Can anyone tell me what "err" means (other than the obvious!). I get it when either turning on HP3458A or when doing a "test" function from the front panel. The "err" message appears when it finishes doing ROM and RAM tests and when it starts the "Slave test". I have two 3458A's one says "self test failed" when it gives up; the other fails to a "VDC" state.If it is beyond the user to fix can you tell me where I need to send them to get fixed, please.Thanks
2019-05-30 15:29
我们有一个桌面运行89600 VSA成功与三个许可证。然而，一周前电脑已经崩溃了。重新安装软件时，许可证文件无效（因为hostid已更改）。在这种情况下我该怎么办？非常感谢你。 以上来自于谷歌翻译 以下为原文We had a desktop running 89600 VSA successfully with three licenses. However, the pc has crashed a week ago. When reinstalling the software, the license files are invalid (because the hostid has changed). How should I proceed in this case? Thank you very much.
2018-11-30 14:44
嗨使用频谱测量放大器的输出参考噪声是否有效？假设单端输入，单端输出放大器。程序：输入终止，以dbm / hz测量噪声功率密度，应用检测器的校正因子，rbw，然后转换为V / rootHz。除以增益，给出输入参考噪声。假设有足够的增益来提升超出频谱噪声基底的噪声。 以上来自于谷歌翻译 以下为原文Hi Is it valid to use a spectrum to measure the output referred noise of an amplifier? Assume a single-ended input, single-ended output amplifier. Procedure: input terminated, measure noise power density in dbm/hz, apply correction factors for detector, rbw, then translate to V/rootHz. Divide by gain, gives input referred noise. Assume sufficient gain to boost noise beyond spectrum's noise floor.
2019-02-20 07:20
您好我正在使用N9020A MXA信号分析仪测量GFSK调制信号。当包含测量滤波器时，FSK误差的结果在某种程度上不能正确计算。见附件截图。参考信号似乎未被过滤。如何设置分析仪以在FSK误差测量中包含测量滤波器？最好的问候Sono 以上来自于谷歌翻译 以下为原文Hello I am using the N9020A MXA Signal Analyzer to measure GFSK modulated signals. The results for FSK error is somehow not calculated correct when a meas-filter included. See attached screenshot. The reference signal seem not filtered. How can I set up the analyzer to include the meas-filter in the FSK error measurement? Best regardsSono附件Screen_0010.png78.8 KB
2018-11-23 11:00
嗨，我正在使用MXA进行测量。我在Y轴单元上看到了当前（A）选项（附加）。 dBM的测量是否可以在不使用分流电阻的情况下直接转换为电流（A）？或者我必须使用电流探头进行测量以获得更好的精度吗？我的应用是使用PCB和电线上的近场探头进行电流测量。希望你能帮忙。 以上来自于谷歌翻译 以下为原文Hi, I'm using MXA for measurement. I saw the current (A) option (attached) on the Y axis unit. Can the measurement from dBM to directly convert into current (A) without using a shunt resistance? Or must I use a current probe for measurement for better accuracy? My application is to do current measurement using near field probe on my PCB and wires. Hope you can help.附件Unit in A(Current).png76.4 KB
2019-04-19 15:27
亲爱的先生，我决定重建我的LISN（线路阻抗稳定网络）进行EMC测试。然后我想知道连接频谱分析仪的最佳方法是什么。 EXA上有一个电源接地连接，它连接到后面的外壳，N连接器连接到前面的外壳。因此，从N连接器到LISN以及从主电源到LISN存在接地回路。由EXA接地连接，LISN的接地连接形成的接地回路，以及由LISN的测量端子连接到EXA输入端的同轴电缆屏幕完成的回路。什么推荐？主电源上的铁氧体钳是否会导致分析仪增加足够的阻抗？附件文件是EXA＆amp; LISN接地回路连接。此致，托马斯李 以上来自于谷歌翻译 以下为原文Dear Sir, I decided to rebuild my LISN (Line Impedance Stabililsing Network) for EMC testing. I then wondered just what was the best way to connect the Spectrum analyzer. There is an mains earth connection on the EXA which connects to the case at the back, and the N connector connects to the case at the front. There is thus an earth loop from the N connector to the LISN and from the mains to the LISN. The earth loop formed by the EXA earth connection, the LISN's earth connection, and the loop which is completed by the screen of the coax joining the measurement terminal of the LISN to the input of the EXA. What is recommended? Would a ferrite clamp on the mains lead to the analyzer add enough impedance? Attachment file is EXA & LISN earth loop connection. Regards, Thomas Lee附件EXA_earth_loop.png165.3 KB
2019-07-17 11:53
嗨，我正在使用33522A产生325Hz的正弦波，-5dBM输入MXA。见附件。我自动调谐以检测我的现场频率，但MXA无法检测到任何频率。我将频率设置为10Mhz并自动调谐，MXA可以检测到此信号。后来我将起始频率设置为300Hz，停止频率为1MHz。 MXA也无法在325Hz检测到我的信号。参见附图，标记为325.2Hz。我的应用是测量325Hz和高达5次谐波的基频。但现在，MXA无法检测到如此低的信号。可能是因为我的设备问题？或低频测量有限制吗？希望你能帮忙。 Screen_101.png77.5 KB 以上来自于谷歌翻译 以下为原文Hi, I'm using 33522A to generate a sine wave at 325Hz, -5dBM to input onto a MXA. See attached. I autotune to detect my spot frequency, but the MXA is unable to detect any. I set the frequency at 10Mhz and autotune, MXA can detect this signal. Later i set up my start frequency at 300Hz, stop frequency 1MHz. MXA is also not able to detect my signal at 325Hz. See attached pic with marker at 325.2Hz. My application is to measure the fundamental frequency at 325Hz and up to 5th harmonics. But now, MXA is unable to detect such low signal. Can it be due to my equipment issue? or is there a limitation at low frequency measurement? Hope you can help.附件IMG_0131[1]2.1 MBScreen_101.png77.5 KB
2019-04-28 11:46
