ADAU145x IOVDD Voltage Specification
Hi, ADI Support Team
I have a question about IOVDD of ADAU145x.
The IOVDD Voltage is specified in Table 2 and 3 of the datasheet (Rev.C) as follows.
Min 1.71V
Typ 3.3V
Max 3.63V
However, I find a lot of description of "IOVDD = 1.8 V − 10% to 3.3 V + 10%" in the datasheet.
1.8V - 10% = 1.62V
3.3V + 10% = 3.63V
Therefore, I think that Min value shoud be 1.62V in Table 2 and 3.
Do you have any reason it is 1.71V?
Best regards, TomY.
Hello TomY
I looked into this issue and found that the error is in the text at the top and not the number in the table.
The IOVDD is tested to +10% and -5%.
This will be changed in the next revision of the datasheet.
Dave T
Hi, Dave
Thank you for your answer.
Please let me confirm below just in case.
You mean the description of the datasheet will be changed as follows?
"IOVDD = 1.8V-5% to 3.3V+10%"
Therefore, I understood that IOVDD is Min 1.71V and Max 3.63V.
Based on this IOVDD specification, I'd like to confirm one more thing.
How should I think about VIH/VIL and VOH/VOL in each case 1.8V and 3.3V?
The description of the current datasheet is as follows.
For example, when IOVDD is 2.5V, how should I think about VIH/VIL and VOH/VOL?
In this case, I think there is not this specification in the current datasheet.
Best Regards, TomY
Hello, Dave
Thank you for your answer.
My question became to clear now.
Best Regards, TomY
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