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If a cmos digital circuit consumes p watts of dynamic power while operating at 20 Mhz and 5V supply what will be its dynamic power consumption if the clock frequency is increased to 40 Mhz?
Wiki User
∙ 13y ago
2*p*.707
because P=C*f*V2
f has been multiplied by 2 but that doubling in frequency also changes the capacitive impedance by a factor of (1 divided by the square root of 2).
Wiki User
∙ 13y ago
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