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*Special Note on using PWM output
PWM output can be configured to isolated output or TTL output, owing to the interface electric
characteristics, the real output may be distorted by frequency bandwidth or on/off delays. As for
TTL, we recommend to check for the minimum duty. For the isolated output, the PWM frequency
and duty pulse width is limited not less than 100us and check the response by a scope to verify the
validity of your application.
