[SI-LIST] question about LF

From: "Chen, Sherman" <sherman.chen@xxxxxxx>
To: "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
Date: Tue, 1 Oct 2013 03:31:32 +0000

Hello,

In section 4.2.3.1 of Base3.0 spec. it states that C0-|C-1|-|C+1| should be 
greater than or equal to LF.
[cid:image002.png@01CEAA97.25F2B610]
But based on below FIR formula, LF shall always be equal to C0-|C-1|-|C+1|. So 
under what circumstance LF could be smaller than C0-|C-1|-|C+1|?
Base=Vb/2=[2Dn+1-1]C1+ [2Dn-1]C2+ [2Dn-1-1]C3.





Best regards,

Sherman Chen (Signal Integrity Engineering)

Tel: +86 21 60951100ext3329 Cell: +86 13564192306




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[SI-LIST] question about LF

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