TLV320AIC3100: Max ratings and digital input voltage

regis davoust

Prodigy 20 points

Part Number: TLV320AIC3100

Hi,

At power up, during 5 ms the voltage of the I2C signal is higher than the IOVDD voltage.

Reset signal is down during power up.

Is there may affect device reliability?

Regards,

Regis

over 2 years ago

0 pdjuandi over 2 years ago

TI__Mastermind 28815 points

Hi,

So this is only occurring during power up while reset is low, that should be ok.

0 regis davoust over 2 years ago in reply to pdjuandi

Prodigy 20 points

Hi,

We may be considering changing timings and in this case we should have at power up during 240 ms the voltage of the signal MCLK= 2,8V, the voltage of the signal WCLK= 1V, the voltage of the signal DIN= 1,5V, the voltage of the signal Dout= 1V,the voltage of the signal BCLK= 1,1V and the voltage of the signal I2C=1,5V are higher than the IOVDD voltage . During this power up reset signal is down. See attach file. It is only during power up. Is it ok for device reliabilitysoft new bootloader-00020--00000.pdf soft new bootloader-00025--00000.pdf soft new bootloader-00026--00000.pdf soft new bootloader-00027--00000.pdf

0 pdjuandi over 2 years ago in reply to regis davoust

TI__Mastermind 28815 points

Hi,

You should keep your digital level within this spec since your level is higher than IOVDD and all your supplies should be up during reset low see section 7.3.1 to 7.3.2.

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TLV320AIC3100: Max ratings and digital input voltage