AFE4460: Actually, I have a inquiry for part AFE4500 regarding DRE mode, and use of DAC offset current.

Tool/software:

Hello,

I'm testing AFE4500, and have a few questions.

First, there is an brief explanation of DRE in the datasheet, but seems not sufficient.

I'd like to request further detailed use case or explanation on this.

Second, I'm wondering if I can use manual OFFDAC_AMB and automatic LED DC cancellation at the same time.

For my implementation, I'm having a large amount of DC signal from LED ON, so OFFDAC_LED is not sufficient (which is 63uA for maximum).

I'd like to cancel the DC using OFFDAC_AMB, and also use the automatic LED DC cancellation mode in LED phase. However when I enable 'UPDATE BASELINE' for automatic LED DC cancellation, it seems like the OFFDAC_AMB current becomes reset.

Please, reach out me for any help.