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An Approach For Power Minimization - Using Transformations Si (Correct)
....measurement and simulations) as a function of supply voltage. Figure lb ,shows a plot of experimentally derived normalized delay vs. Van. Once again, the delay dependence on supply voltage was verified to be relatively independent of various logic functions and logic styles [1] 1.00 0. 90 0.811 0.711 o.611 0.50 0.411 0.311 0.20 O. 1C o.oCl.oo i I I I 2.00 3.00 4.00 5.00 Vdd Figure 1: Plot of normalized energy vs.Vad (la) and delay vs. Vad (lb) It is clear that operating at the lowest possible voltage is most desirable, however, this comes at the cost of increased ....
....to this stmcture, reducing the cdti ath further to 2 cycles. Since the final transformed block is working at half the inal sample rate (since we are processing 2 samples in parallel) while the crifi path is same as the original datapath (2 control cycles) the supply voltage can Lropped to 2. 9V (the voltage at which the delays increase by a factor of 2, see re lb) Note that the reduction in supply voltage more than compensates for increase in capacitance resulting in an overall reduction of the power by a factor (due to the quadratic effect of voltage on power) e results from the ....
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Comsat General Integrated Systems, Super-Filsyn Users Manual, March 1982.
Optimizing Power Using Transformations - Chandrakasan, Potkonjak, Mehra.. (1995) (97 citations) (Correct)
....model using real input data) Table 4 shows the statistics of the initial and final designs. Note that area has been traded for lower power. 7. 2 Example #2: IIR Filter The second example is a 16 bit 7th order IIR filter with a 4th order equalizer designed using the filter design program Filsyn [37]. This example is representative of the largest class of examples where feedback is an inherent but not particularly limiting part of the computation structure. Unlike the previous example, when the transformation set of the HYPER LP system was limited only to retiming, no reduction in the power ....
Comsat General Integrated Systems, Super-Filsyn Users Manual, March 1982.
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