1. What is Victim Voltage?

Victim Voltage is calculated when the victim is being actively driven, then the driver will supply current to oppose to reduce the victim's noise in CMOS circuits.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Vtm \) — Victim Voltage (V)
• \( Vagr \) — Agressor Voltage (V)
• \( Cadj \) — Adjacent Capacitance (F)
• \( Cgnd \) — Ground Capacitance (F)

Explanation: This formula calculates the voltage at the victim node when there is capacitive coupling between aggressor and victim nets in a CMOS circuit.

3. Importance of Victim Voltage Calculation

Details: Calculating victim voltage is crucial for analyzing crosstalk effects in digital circuits, ensuring signal integrity, and preventing unwanted circuit triggering due to noise coupling.

4. Using the Calculator

Tips: Enter aggressor voltage in volts, adjacent capacitance in farads, and ground capacitance in farads. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is aggressor voltage in CMOS circuits?
A: 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.

Q2: What is adjacent capacitance?
A: Adjacent capacitance is the capacitance between the aggressor and victim nets at their adjacent points.

Q3: What is ground capacitance?
A: Ground Capacitance is the capacitance at the ground node of the CMOS circuit.

Q4: When is victim voltage calculation important?
A: This calculation is important in high-speed digital circuit design to analyze and mitigate crosstalk effects between closely spaced signal lines.

Q5: What are typical values for these parameters?
A: Aggressor voltages are typically in the range of 1-5V, while capacitances are usually in the femtofarad to picofarad range (10⁻¹⁵ to 10⁻¹² F) for integrated circuits.