I have an ADAU1961 CODEC interfaced to a Blackfin processor (all working well!). The clock for the ADAU1961 is from an external source and can be shutdown separately. I can hibernate the Blackfin but what steps do I need to take and in what order do I need to execute them to minimise the quiescent current of the ADAU1961 during the Blackfin hibernation and to minimise the restart time when the Blackfin exits hibernation? I need to get the ADAU1961 to less than 100 uA if possible.
All suggestions greatly appreciated! Thanks in advance