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14 November 2014

An Under-the-Hood View of PCIe 3.0 Link Training (Part I)

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Figure 1: An overview of the elements of PCIe 3.0 dynamic link equalization Now that we've looked at the basics of PCIe 3.0 dynamic...
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10 November 2014

PCIe 3.0 Dynamic Link EQ: De-Emphasis, Preshoot, Cursors, and Presets

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Figure 1: De-emphasis, a key transmit-side equalization technique for PCIe 3.0, boosts high-frequency content In an earlier post , we l...
06 November 2014

The Hows and Whys of PCIe 3.0 Dynamic Link Equalization

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Figure 1: SI problems are the root cause for dynamic link equalization in PCIe 3.0 If you're designing a computer peripheral these ...
15 October 2014

DDR Memory Testing Part IV: Preparing for Testing

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Figure 1: For compliance testing, DDR transition density should be as high as possible The first three installments of this series of ...
08 October 2014

DDR Memory Testing Part III: What Not to Do

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Figure 1: Damping resistors on solder-in probe tips Testing of dual data-rate memory (DDR) devices and/or modules calls for careful app...
01 October 2014

DDR Memory Testing Part II: Using Interposers

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Figure 1: The anatomy of a chip interposer If you're a PCB layout designer, you've probably heard one or more test engineers com...
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24 September 2014

Eliminate Pitfalls of DDR Memory Testing

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Figure 1: DDR test configuration for a desktop computer Since its inception as a standard in the mid 1990s, dual data-rate (DDR) SDRAM...
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