Hold Time at High logic Calculator

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✖Aperture Time for Falling Input is defined as the time during the input when the logic falls to 0 or low output.ⓘ Aperture Time for Falling Input [t_af]			+10% -10%
✖Setup Time at Low Logic is defined as the setup time when the logic falls to low input or 0.ⓘ Setup Time at Low Logic [T_setup0]			+10% -10%

✖Hold Time at High logic is defined as the hold time during the input when the logic goes high to 1 or high output.ⓘ Hold Time at High logic [T_hold1]

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Formula

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Hold Time at High logic

Formula

`"T"_{"hold1"} = "t"_{"af"}-"T"_{"setup0"}`

Example

`"7.9ns"="11.65ns"-"3.75ns"`

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Hold Time at High logic Solution

STEP 0: Pre-Calculation Summary

Formula Used

Hold Time at High Logic = Aperture Time for Falling Input-Setup Time at Low Logic
T_hold1 = t_af-T_setup0
This formula uses 3 Variables

Variables Used

Hold Time at High Logic - (Measured in Second) - Hold Time at High logic is defined as the hold time during the input when the logic goes high to 1 or high output.
Aperture Time for Falling Input - (Measured in Second) - Aperture Time for Falling Input is defined as the time during the input when the logic falls to 0 or low output.
Setup Time at Low Logic - (Measured in Second) - Setup Time at Low Logic is defined as the setup time when the logic falls to low input or 0.

STEP 1: Convert Input(s) to Base Unit

Aperture Time for Falling Input: 11.65 Nanosecond --> 1.165E-08 Second (Check conversion here)
Setup Time at Low Logic: 3.75 Nanosecond --> 3.75E-09 Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

T_hold1 = t_af-T_setup0 --> 1.165E-08-3.75E-09

Evaluating ... ...

T_hold1 = 7.9E-09

STEP 3: Convert Result to Output's Unit

7.9E-09 Second -->7.9 Nanosecond (Check conversion here)

FINAL ANSWER

7.9 Nanosecond <-- Hold Time at High Logic

(Calculation completed in 00.004 seconds)

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Created by Shobhit Dimri

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

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Go XOR Phase Detector Current = XOR Phase Detector Phase*XOR Phase Detector Average Voltage

XOR Phase Detector Phase

Go XOR Phase Detector Phase = XOR Phase Detector Voltage/XOR Phase Detector Average Voltage

Aperture Time for Falling Input

Go Aperture Time for Falling Input = Setup Time at Low Logic+Hold Time at High Logic

Setup Time at Low Logic

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Hold Time at High logic

Go Hold Time at High Logic = Aperture Time for Falling Input-Setup Time at Low Logic

Aperture Time for Rising Input

Go Aperture Time for Rising Input = Setup Time at High Logic+Hold Time at Low Logic

Setup Time at High Logic

Go Setup Time at High Logic = Aperture Time for Rising Input-Hold Time at Low Logic

Hold Time at Low logic

Go Hold Time at Low Logic = Aperture Time for Rising Input-Setup Time at High Logic

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Hold Time at High logic Formula

Hold Time at High Logic = Aperture Time for Falling Input-Setup Time at Low Logic
T_hold1 = t_af-T_setup0

What is setup times tsetup0 and tsetup1?

In general, the delays will differ for inputs of 0 and 1. The setup times tsetup0 and tsetup1 are the times that D must fall or rise, respectively, before the clock so that the data is properly captured with the least possible tDQ.

How to Calculate Hold Time at High logic?

Hold Time at High logic calculator uses Hold Time at High Logic = Aperture Time for Falling Input-Setup Time at Low Logic to calculate the Hold Time at High Logic, The Hold Time at High logic formula is defined as the hold time during the input when the logic goes high to 1 or high output. Hold Time at High Logic is denoted by T_hold1 symbol.

How to calculate Hold Time at High logic using this online calculator? To use this online calculator for Hold Time at High logic, enter Aperture Time for Falling Input (t_af) & Setup Time at Low Logic (T_setup0) and hit the calculate button. Here is how the Hold Time at High logic calculation can be explained with given input values -> 7.3E+9 = 1.165E-08-3.75E-09.

FAQ

What is Hold Time at High logic?

The Hold Time at High logic formula is defined as the hold time during the input when the logic goes high to 1 or high output and is represented as T_hold1 = t_af-T_setup0 or Hold Time at High Logic = Aperture Time for Falling Input-Setup Time at Low Logic. Aperture Time for Falling Input is defined as the time during the input when the logic falls to 0 or low output & Setup Time at Low Logic is defined as the setup time when the logic falls to low input or 0.

How to calculate Hold Time at High logic?

The Hold Time at High logic formula is defined as the hold time during the input when the logic goes high to 1 or high output is calculated using Hold Time at High Logic = Aperture Time for Falling Input-Setup Time at Low Logic. To calculate Hold Time at High logic, you need Aperture Time for Falling Input (t_af) & Setup Time at Low Logic (T_setup0). With our tool, you need to enter the respective value for Aperture Time for Falling Input & Setup Time at Low Logic 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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