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Unformatted text preview: Obtaining the PUN from the PDN and Vice Versa 1) PUN & PDN are duals of one another. 2) A series branch in one corresponds to a parallel branch in the other. 3) Inputs are the same in dual e.q. Input A in PDN is Input A in PUN (In other words do not replace A in PDN by A in PUN) Example: Y = A(B+CD) Y = A(B+CD) Synthesize PDN PUN is Dual of PDN Y = A+B(C+D) Y = A+B(C+D) 3 Figure 10.4 CMOS Realization Of A Complex Gate Y = A(B + CD) Synthesize PDN 1. A in series with (B + CD) 2. B in parallel with CD with C & D in series PUN is the Dual A is one // path BCD is 2 nd // path With B in series with CD which are in series...
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This document was uploaded on 09/28/2011.
 Spring '09
 Gate

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