DRV8870EVK issue

Hello.

On the first test of the DRV8870 Eval Board I noticed acoustic noise on the motor.

After measuring the 555 output, it is around 2.8KHz, but as stated on the DRV8870EVK manual, it would be aprox 25KHz: "...The “PWM” signal generated by the onboard circuitry EVM is approximately 25 kHz"

Please comment.