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15 de feb. de 2004 · If you can post your source and dsn file we'll have a look. Typically this happens when you externally wire a crystal etc. - this introduces an extremely high speed oscillator which bottlenecks the simulation and is completely superfluous anyway. Clock frequency is specified as a property of the microcontroller device.
12 de jun. de 2004 · hspice speed up simulation Besides fast options, autostop can help you as well. In addition, increase step for transient, AC,DC will help when too small is not necessary. Of course employing multi-cpu and use multi-thread job can make simulation fast dramatically.
As the demand for high-speed data transmission grows, the interface between high-speed ICs becomes critical in achieving high performance, low power, and good noise immunity. Three commonly used interfaces are PECL (positive-referenced emitter-coupled logic), LVDS (low-voltage differential signals), and CML (current mode logic).
21 de nov. de 2020 · 在主板上会有很多个风扇的接口，每个接口的作用是不一样的，机箱风扇的接口和CpU风扇的接口都是要接在主板上的，很容易出错，如果出现插错接口的情况，就会导致出现错误提示； 2、可以打开机箱检查CpU的风扇是不是接在主板上标有“CpU Fan”接口上 ...
17 de ago. de 2010 · 1,329. I used Capture to draw my circuit, and I want to do a transient simulation with a time period of a few hours. The simulation takes forever. If I simulate .1 seconds, it takes 10 minutes, so simulating an hour would take way longer than I want to wait. In the simulation profile, I've increased the maximum step size, but it doesn't seem to ...
This sounds as though you want to examine 5 seconds operation of a circuit running at 1 GHz. It's an example of mixing micro and macro events. It becomes mismatched and unwieldy in simulation. (It is not a problem with real electronics, of course.) Consider trying a longer timestep. Also try a slower switching rate in your simulated circuit.
21 de mar. de 2008 · Hi all, I am using 90nm technology. After I use PLS and create the config view to do the simulation. In the AE, it is no problem that the ti run fast enough for just a few cells. After I want simulate the whole circuit, it because very small. In my circuit, there are 8 DFFs, 8 XOR and 16 Buffer...
The min-imum output common mode of LVDS (1.125V) is lower than the minimum input common mode of the HOTLink II CML receivers (1.25V), therefore the AC-coupling capacitors, C1 and C2 are necessary to remove the DC content of the LVDS output signal. The DC-restoration of the HOTLink II receiver will re-center the transmitted signal around VCC/2 ...
1 de feb. de 2007 · There has been apparently doubt how to calculate rotation speed for this motor. However, as the datasheet confirms, the formula is simply given by the 5 rpm@200 pps expression. Required step frequency is intended revolutions per minute multiply by 40 Hz, usual up to maximum of 5 rpm or 200 Hz, respectively a minimum step-to-step delay of 5 ms.
2 de jul. de 2003 · 1,195. HighSpeedBoardDesign_E. High-Speed Board Design Techniques, This ebook is AMD, Vantis, the Vantis's Applicatio notes (40 pages .pdf file) about PCB design techniques. Mar 31, 2004. #4.
