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What is pulse width distortion (|tPHL - tPLH |)?

Latest Updated:02/01/200


What is pulse width distortion (|tPHL - tPLH |)?


This parameter indicates how much the signal input and propagated from the light-emitting side changes at the light-receiving side.
This change is expressed as | tPHL - tPLH| by using the propagation delay times.
It can be said that the lower the value of |tPHL - tPLH| is, the less distorted the photocoupler is, i.e., the less its pulse width changes.

[Propagation delay time and test circuit in the PS9117A data sheet]

Related FAQ:What are propagation delay time (H → L) tPHL and propagation delay time (L → H) tPLH?
Suitable Products
Zener Diodes for Surge Absorption
Photocouplers / Optocouplers