what is the minimum saadc working freq,5us?

[wen]

i use the saadc as well as ble.the saadc dose not working on 200k hz(5us) as the Product Specification says.what is the wrong?

[wen]

thanks.I changed the acquisition time and it worked.But at the 200K and 100K sample freq,the wave was dithering.I looked at the timer again,found that the timer's freq is also dithering at 200K and 100K freq.Why?