Part Number: TS3A225E
We have implemented in our design the two following components (see schematic in attachment)
We are confused to observe we are losing the register settings of the TS3A225E.
Writing and reading immediately the values back is ok but after 100ms most of the time the values are lost.
PS: the TLV320AIC3100 on the same I2C bus is working correctly
Could you advise?
The TS3A225E has both a manual I2C control mode to configure the switch matrix and an automatic mode. The default mode of the switch is to be used with automatic detection.
Are you wishing to use the device in automatic detection mode or manual mode?
What settings are you wishing to write to the TS3A225E and what is the result when you lose those settings.
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In reply to Adam Torma:
In reply to Peter Van Hoyweghen:
The TS3A225E doesn't have a true interrupt pin to tell you that something has happened and you need to read the registers like the TS3A227E. The TS3A225E MIC_PRESENT pin is like an interrupt only when a microphone is detected so the pin will not pull low unless it detects a microphone.
If you would like an interrupt every time something is inserted into the audio jack you can use the TS3A227E or an audio jack that has a mechanical switch that will make or break a connection when something is inserted into the jack.
Still, according to the datasheet, the function of MIC_PRESENT on the TS3A225E can be programmed via i2c register CTRL3 as: mic present detect (=default) or as I2C_IRQ.It does not look normal to me that this configuration is lost over time. Or is it?
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