I am looking at the TLC59108 LED controller. This chip, and many others in the LED controller family have a 97kHz frequency controlling the individual LEDs and a 190Hz frequency controlling the global dimming. I'm trying to learn more about these two special frequencies. I've found no information in the E2E support, as suggested by TI tech support. Can you direct me to some engineering resource to help me understand why these two values were chosen?