Agressor Voltage Calculator

✖Victim Voltage is calculated when the victim being actively driven, then the driver will supply current to oppose to reduce the victim's noise.ⓘ Victim Voltage [V_tm]			+10% -10%
✖Ground Capacitance is the capacitance at the ground of the CMOS Circuit.ⓘ Ground Capacitance [C_gnd]			+10% -10%
✖Adjacent capacitance is the capacitance at adjacent point.ⓘ Adjacent Capacitance [C_adj]			+10% -10%

✖Agressor Voltage refers to the avoided voltage in a CMOS circuit, which is typically a small positive voltage added to the input signal to avoid unwanted triggering of the circuit.ⓘ Agressor Voltage [V_agr]

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Formula

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Agressor Voltage

Formula

V agr = \frac{V tm \cdot (C gnd + C adj)}{C adj}

Example

17.49938 V = \frac{12.75 V \cdot (2.98 pF + 8 pF)}{8 pF}

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Agressor Voltage Solution

STEP 0: Pre-Calculation Summary

Formula Used

Agressor Voltage = (Victim Voltage*(Ground Capacitance+Adjacent Capacitance))/Adjacent Capacitance
V_agr = (V_tm*(C_gnd+C_adj))/C_adj
This formula uses 4 Variables

Variables Used

Agressor Voltage - (Measured in Volt) - Agressor Voltage refers to the avoided voltage in a CMOS circuit, which is typically a small positive voltage added to the input signal to avoid unwanted triggering of the circuit.
Victim Voltage - (Measured in Volt) - Victim Voltage is calculated when the victim being actively driven, then the driver will supply current to oppose to reduce the victim's noise.
Ground Capacitance - (Measured in Farad) - Ground Capacitance is the capacitance at the ground of the CMOS Circuit.
Adjacent Capacitance - (Measured in Farad) - Adjacent capacitance is the capacitance at adjacent point.

STEP 1: Convert Input(s) to Base Unit

Victim Voltage: 12.75 Volt --> 12.75 Volt No Conversion Required
Ground Capacitance: 2.98 Picofarad --> 2.98E-12 Farad (Check conversion here)
Adjacent Capacitance: 8 Picofarad --> 8E-12 Farad (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_agr = (V_tm*(C_gnd+C_adj))/C_adj --> (12.75*(2.98E-12+8E-12))/8E-12

Evaluating ... ...

V_agr = 17.499375

STEP 3: Convert Result to Output's Unit

17.499375 Volt --> No Conversion Required

FINAL ANSWER

17.499375 ≈ 17.49938 Volt <-- Agressor Voltage

(Calculation completed in 00.004 seconds)

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Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

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< CMOS Design Characteristics Calculators

Built-in Potential

Go Built-in Potential = Thermal Voltage*ln((Acceptor Concentration*Donor Concentration)/(Intrinsic Electron Concentration^2))

Capacitance Onpath

Go Capacitance Onpath = Total Capacitance in Stage-Capacitance Offpath

Change in Frequency Clock

Go Change in Frequency of Clock = VCO Gain*VCO Control Voltage

Static Current

Go Static Current = Static Power/Base Collector Voltage

Agressor Voltage Formula

Agressor Voltage = (Victim Voltage*(Ground Capacitance+Adjacent Capacitance))/Adjacent Capacitance
V_agr = (V_tm*(C_gnd+C_adj))/C_adj

Why is it neccessary to model the circuit as a capacitive voltage divider?

Suppose wire A switches while B is supposed to remain constant. This introduces noise as B partially switches. We call A the aggressor or perpetrator and B the victim. If the victim is floating, we can model the circuit as a capacitive voltage divider to compute the victim noise.

How to Calculate Agressor Voltage?

Agressor Voltage calculator uses Agressor Voltage = (Victim Voltage*(Ground Capacitance+Adjacent Capacitance))/Adjacent Capacitance to calculate the Agressor Voltage, The Agressor Voltage formula is defined as the voltage in the node A which is called as the aggressor or perpetrator. This introduces noise as node B partially switches. Agressor Voltage is denoted by V_agr symbol.

How to calculate Agressor Voltage using this online calculator? To use this online calculator for Agressor Voltage, enter Victim Voltage (V_tm), Ground Capacitance (C_gnd) & Adjacent Capacitance (C_adj) and hit the calculate button. Here is how the Agressor Voltage calculation can be explained with given input values -> 17.53125 = (12.75*(2.98E-12+8E-12))/8E-12.

FAQ

What is Agressor Voltage?

The Agressor Voltage formula is defined as the voltage in the node A which is called as the aggressor or perpetrator. This introduces noise as node B partially switches and is represented as V_agr = (V_tm*(C_gnd+C_adj))/C_adj or Agressor Voltage = (Victim Voltage*(Ground Capacitance+Adjacent Capacitance))/Adjacent Capacitance. Victim Voltage is calculated when the victim being actively driven, then the driver will supply current to oppose to reduce the victim's noise, Ground Capacitance is the capacitance at the ground of the CMOS Circuit & Adjacent capacitance is the capacitance at adjacent point.

How to calculate Agressor Voltage?

The Agressor Voltage formula is defined as the voltage in the node A which is called as the aggressor or perpetrator. This introduces noise as node B partially switches is calculated using Agressor Voltage = (Victim Voltage*(Ground Capacitance+Adjacent Capacitance))/Adjacent Capacitance. To calculate Agressor Voltage, you need Victim Voltage (V_tm), Ground Capacitance (C_gnd) & Adjacent Capacitance (C_adj). With our tool, you need to enter the respective value for Victim Voltage, Ground Capacitance & Adjacent Capacitance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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