Asking for the AIC3254 power up timing

SHH

Mastermind 32326 points

Hi Team,

Did you provide the T1,T2 and T3 timing?

Thanks,

Scott

over 9 years ago

0 Diego Melendez over 9 years ago

TI__Guru 57800 points

Hi, Scott,

My colleague will take a look to your request, as he is out of the office this week, he can provide his comments early next week.

Best Regards,

-Diego Meléndez López
Audio Applications Engineer

0 Luis Fernando Rodriguez S. over 9 years ago in reply to Diego Melendez

TI__Guru* 84915 points

Hi, Scott,

Please take a look at this document: www.ti.com/.../slaa492a.pdf . It provides a complete explanation of the Power Supply Sequence in the TLV320AIC32x4 devices.

Let me know if you have questions or comments about this.

Best regards,
Luis Fernando Rodríguez S.

0 SHH over 9 years ago

TI__Mastermind 32326 points

Hi Luis,

Thanks for help!

Thank you and Best regards,

Scott Hsieh

0 SHH over 9 years ago

TI__Mastermind 32326 points

Hi Luis,

Could you help check the following sequence is ok or not? Due to AVDD need to be late than Reset pin, is there any way do to meet the sequence? (Tr-a min is 1ms.)

Customer cannot find the Tl-d in the sequence waveform. Is it a typo?

Thank you and Best regards,

Scott Hsieh

0 Luis Fernando Rodriguez S. over 9 years ago in reply to SHH

TI__Guru* 84915 points

Hi, Scott,

Regarding your question about the Tr-a time, this value is only required when DVDD and AVDD are generated by internal LDO. Once the RESET is released, ALDO can be powered on with Page 1 / Register 2 / Bit D0. Customer must ensure that this ALDO is powered on after 1ms.

Then, there's a typo in this document, the first parameter of Table 3 is actually TI-L.

Best regards,
Luis Fernando Rodríguez S.

Audio

Audio forum

Asking for the AIC3254 power up timing