71. The scaling factor of power dissipation per unit area in the constant field model is:
a) 1
b) 1/α2
c) 1/ β.α2
d) α2/β2
Answer: a
Speed-power product is defined as the product of propagation delay time in ns and power dissipation in mW.
The scaling factor of power dissipation per unit area in the constant field model is 1.
72. The scaling factor of Logic Level 1 in the constant field model is:
a) 1
b) 1/β
c) 1/α
d) α/β
Answer: c
The logic level 1 is scaled as 1/β. Since we are using a constant field model, the scaling factor will be 1/α
73. The scaling factor similar to the scaling factor of the power speed product is:
a) Power dissipation per unit area
b) Switching Energy
c) Power dissipation per gate
d) All of the mentioned
Answer: b
Switching energy has the same scaling factor as that of power speed products.
The switching Activity Factor (A) of a circuit node is the probability the given node will change its state from 1 to 0 or vice versa at a given clock tick.
The activity factor is a function of the circuit topology and the activity of the input signals.
74. The parameter which is not scaled to any factor is:
a) Power speed product
b) Switching energy
c) Channel resistance
d) All of the mentioned
Answer: c
Channel resistance is scaled by 1. Therefore there are no factors like α or β.
A MOSFET’s channel resistance also produces a thermal noise
