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Aperture Jitter Measurement

Measure aperture jitter of periodic signals

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  • Mixed-Signal Blockset / ADC / Measurements & Testbenches

  • Aperture Jitter Measurement block

Description

TheAperture Jitter Measurementmeasure the aperture jitter of periodic signals. In practical data converters, there is a delay between the sampling edge of the sample clock signal and when the sample is actually taken. This delay is known as aperture delay. Aperture jitter is the sample to sample variation between aperture delay.

Ports

Input

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Clock signal input, specified as a scalar in volts.

Data Types:double

Output

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Aperture jitter output, returned as a scalar in seconds.

Data Types:double

Parameters

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Input clock frequency, specified as a real positive scalar in Hz.

Programmatic Use

  • Useget_param(gcb,'Frequency')to view the current value ofFrequency.

  • Useset_param(gcb,'Frequency',value)to setFrequencyto a specific value.

Minimum time the simulation must run for meaningful result, specified as a scalar in seconds. This is calculated using the JEDEC Standards for measuring aperture jitter.

Signal range

Minimum value of clock signal, specified as a real scalar in volts.

Programmatic Use

  • Useget_param(gcb,'InputMin')to view the current value ofMin.

  • Useset_param(gcb,'InputMin',value)to setMinto a specific value.

Maximum value of clock signal, specified as a real scalar in volts.

Programmatic Use

  • Useget_param(gcb,'InputMax')to view the current value ofMax.

  • Useset_param(gcb,'InputMax',value)to setMaxto a specific value.

Delays measurement analysis to avoid corruption by transients, specified as a nonnegative real scalar in seconds.

Programmatic Use

  • Useget_param(gcb,'HoldOffTime')to view the current value ofHold off time (s).

  • Useset_param(gcb,'HoldOffTime',value)to setHold off time (s)to a specific value.

Data Types:double

版本历史

Introduced in R2019a

See Also

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External Websites