PCM4220: Digital output when input exceeds the max input level

Hi Alpesh,

Please wait until our TI engineers return from work holiday Tues. Sep, 6th to answer your question.

Thank you for your patience

A full scale value of 2.8v pp should result in full scale data at the point when one pin goes above 1.95v+1.4 or 3.4v and the other goes below 1.95-1.4 or 0.6v.  It should continue to give Full scale value for the time  the highest value remains  at 3.4 v and lowest at 0.5v.

Do not exceed Vcc+0.3v or -0.3v on the pin or damage may happen

A full scale value of 2.8v pp should result in full scale data at the point when one pin goes above 1.95v+1.4 or 3.4v and the other goes below 1.95-1.4 or 0.6v.  It should continue to give Full scale value for the time  the highest value remains  at 3.4 v and lowest at 0.6v.

Do not exceed Vcc+0.3v or -0.3v on the pin or damage may happen

Hello Sanjay,

Is there a recovery time for the ADC when the input is exceeded e.g. 3Vpp then goes to 2Vpp. The ADC filter delay is 21 for my setup. Is there an additional delay in the ADC output from when the input signal is being clipped to within the operating range.

Hi Kavia,

Apologies for the delay, Sanjay will respond as soon as possible. *For record keeping purposed please wait to respond until Sanjay has continued the thread.

Kind regards,

I dont think a larger signal results in additional delay. The delay from analog signal to decimal output is determined by Decimation filter