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RE: Explanation

208.100.141.234

In Reply to: RE: Explanation posted by cics on March 29, 2008 at 06:08:35

Noise coupling is not a factor. The data has almost a full half cycle of setup and hold time with respect to the clock rising edge. There are no violations, therefore noise on the data signal is not a factor. Only the noise on the bitclock (SCLK) is a factor.

The kind of noise you are talking about is well below the switching threshold in 99% of designs. If this is not the case, then the design is severely broken and should be redesigned anyway.

Steve N.

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