What is the minimum stable PWM on/off time?

[nordicdev]

Hi, I am generating PWM waves using GPIOTE, PPI and Timer. (I cannot use the app_pwm library from SDK 10.0 because there is an intial delay of ~600usec for the PWM to get ready. I want to generate PWM pulses as low as 1 PWM cycle. Hence, I cannot use app_pwm library.) With GPIOTE,PPI and Timer (as in drv 2.1.0) what is the minimum tested stable PWM frequency? The stability of PWM pulses is important to us. Thanks.

[nordicdev]

We need to make a decision on hardware design based on the minimum stable on/off time on pwm. It would be much appreciated if you could answer to this question as soon as you can.. Thanks.