Hi,
I'm using a TAS5727 digital audio power amplifier and have some questions about initialization. Presently, I have the RESET pin being held HIGH shortly after my unit (the product being worked on) powers up, and PDN only becomes high later on. Then, I continue with the initialization procedure as normal, without changing PDN or RESET again. The TAS5727 appears to function as normal at this point.
I realize this is not the recommended behavior, and do not want to make assumptions that because the individual chip I am using works this way, that others will necessarily do so. I've put two specific questions below, but any information about the behavior of the TAS5727 when PDN and RESET are used beyond the recommended procedure would be helpful.
Thanks,
Alex
(When I refer to PDN and RESET, assume they should have the proper complement line above)
Is the behavior of the TAS5727 when PDN is brought HIGH while RESET is already HIGH (and has been so for ~3 seconds) known?
Can the TAS5727 be guaranteed to work properly if, in Step 2 of the initialization sequence (page 31 of the datasheet), PDN is driven from LOW to HIGH after RESET has been HIGH (again, for about ~3 seconds)?
