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DRV2605L: PWM specification

Part Number: DRV2605L

Hi,

I would like to ask you a basic question as below.

1) What is "fo(PWM) PWM Output Frequency (19.5K typ - 21.5K max Hz)" specification? (page6, 6.7 Switching Characterristics)

    Is this a frequency of PWM to drive LRA?

2) On the other hand, there is a following description of "8.3.5.1 PWM Interface" (page14).

"If the LRA_OPEN_LOOP bit is set, the LRA is driven according to the frequency of the
PWM input signal. Specifically, the driving frequency is the PWM frequency divided by 128."

According to this, the driving frequency is "input PWM frequency/128".

So I suppose,

As input PWM frequency is from 10KHz(min) to 250KHz(max), the driving frequency becomes from 78.125Hz to 1.953KHz. 

Is this correct?

If yes, what is "fo(PWM) PWM Output Frequency" ??

Thank you for your support.

Best Regards,