Aperture Jitter Measurement

Measure aperture jitter of periodic signals

  • Library:
  • Mixed-Signal Blockset / ADC / Measurements & Testbenches

Description

The Aperture Jitter Measurement measure 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

  • Use get_param(gcb,'Frequency') to view the current value of Frequency.

  • Use set_param(gcb,'Frequency',value) to set Frequency to 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

  • Use get_param(gcb,'InputMin') to view the current value of Min.

  • Use set_param(gcb,'InputMin',value) to set Min to a specific value.

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

Programmatic Use

  • Use get_param(gcb,'InputMax') to view the current value of Max.

  • Use set_param(gcb,'InputMax',value) to set Max to a specific value.

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

Programmatic Use

  • Use get_param(gcb,'HoldOffTime') to view the current value of Hold off time (s).

  • Use set_param(gcb,'HoldOffTime',value) to set Hold off time (s) to a specific value.

Data Types: double

See Also

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External Websites

Introduced in R2019a