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Pin detail information on ADAU1452

SigmaDSP & SigmaStudio HTCV3 Jan 30, 2019 00:00 2 replies Original on forum ↗
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HTCV3 Question
Jan 30, 2019 00:00

Hello All,

I have two questions.

For the hardware development stage, I would like you to respond me by February 6.

Question 1:

Is there any change or update information related to other past QA?

< ez.analog.com/.../pin-detailed-information-on-adau1452 >

[ADAU145xDefaultPinStates.xlsx]

Question 2:

When / RESET = "L", when there is a signal input to a certain input signal pin, is the output signal pin related to that pin react and the state changes? ("H" &rarr; "L" or inverted)

For example, SDATA_OUT 0 is output when clock input is made to BCLK_OUT 0 and LRCLK_OUT 0 during / RESET = "L", etc.

Audio Signal Processors

adau1452

SigmaDSP Audio Processors

DaveThib Reply
Feb 4, 2019 00:00

Hello HTCV3,

I have not updated the spreadsheet in the link. On the post another user offered some other information which I have not verified or confirmed.

In your example, the BCLK and LRCLK pins are bi-directional and as such they will tri-state as soon as the reset is pulled low so there is no way the serial data out will be clocked.

Dave T

DaveThib Reply
Mar 1, 2019 00:00