Read e-book High Performance Clock Distribution Networks

Free download. Book file PDF easily for everyone and every device. You can download and read online High Performance Clock Distribution Networks file PDF Book only if you are registered here. And also you can download or read online all Book PDF file that related with High Performance Clock Distribution Networks book. Happy reading High Performance Clock Distribution Networks Bookeveryone. Download file Free Book PDF High Performance Clock Distribution Networks at Complete PDF Library. This Book have some digital formats such us :paperbook, ebook, kindle, epub, fb2 and another formats. Here is The CompletePDF Book Library. It's free to register here to get Book file PDF High Performance Clock Distribution Networks Pocket Guide.

If you could somehow generate a MHz clock from the 50 MHz clock on the board, you could avoid using two different clock sources in your system, and you also would not have to operate the board at a higher-than-necessary frequency. We can identify another application of clock synthesis if we recall that some digital signal processing DSP applications are multirate and require different clock frequencies in different parts of the algorithm. Different vendors use different terms to refer to their CMBs. The CMBs can generate new clock signals by performing clock multiplication and division.

Ptp vs ntp time server

They may be able to apply a programmable phase shift to a generated clock or even adjust the duty cycle of a clock. One application for the programmable phase shift feature is synchronizing the clock signal with input data. Without this phase shift capability, the clock may not fall at the center of the data eye.

These dedicated buffers and routes enable us to have a low-skew clock network. In this way, the circuit compensates for the delay in the clock distribution network, and theoretically we can de-skew the clock distribution. So, how can the block diagram of Figure 2 eliminate the clock skew?

How can we circumvent the problem of creating a negative delay?

لا يوجد تقيي٠ات

Remember that the clock signal is a periodic waveform. This is illustrated in Figure 4.

On the other hand, a PLL is more flexible when synthesizing new clock signals. Note that the CMBs can de-skew not only the clock signals distributed within the FPGA but also the clocks going to other devices on the board. We saw that the CMBs can be used to synthesize new clock signals.

Integrated Time & Frequency Systems

These resources are responsible for distributing high-fanout clock signals with a low skew. To distribute a clock signal to all parts of a chip with equal propagation delays, we can use a special form of routing called an H tree. You can see an example in Figure 6.

Navigation menu

Therefore, theoretically, all the clocked elements will see the same clock signal. The Intel devices also have periphery clock PCLK networks that are distributed in a smaller area of the chip.

High Performance Clock Distribution Networks

An example is shown in Figure 9 below. As shown in Figures 8 and 9, FPGAs have dedicated clock routes that are distributed in just one region of the chip. These are called clock regions. Note that different devices have different clock regions.

  • Instability in Flow Boiling in Microchannels.
  • Keywords/Phrases?
  • News and Announcements;

Also note that we need some buffers to efficiently distribute a clock signal along the dedicated routes that we discussed above. Power tradeoffs of the proposed design techniques are investigated and physical layout information is incorporated to synthesize the clock tree layout based on a set of benchmark circuits. This book provides the reader with information on those effects that introduce delay uncertainty and with the tools to successfully design high performance synchronous circuits.

  1. UC Santa Cruz.
  2. Journal of Lightwave Technology?
  3. Scale: Support I Materialise.
  4. Related Items?
  5. Additional Clock and Timing Technologies Acquired from Microsemi.
  6. The original research presented in this book has been awarded with the Outstanding Dissertation Award by the European Design Automation Association. Toggle navigation. Login Username. Lambert Academic Publishing on facebook.