Other Parts Discussed in Thread: TS5A22366, TMUX2889
Hi team,
The customer has a special application where they switch between audio signals and I2C signals on the audio jack, as shown in the diagram below.
But when switching to I2C (IC VDD is 3.3V,and the SEL Keep high 3.3V.), we find that the I2C rising is very slow (rising to about 2.4V before being pulled low, unable to reach 3.3V). There was a time when bypassing TS5A22362 allowed the waveform to fully reach 3.3V and become close to a square wave.
I want to ask, what characteristic of the IC causes this? Is there a way to solve it? Or are there other suggested ICs? A single power supply is needed, but there will be negative voltage input and output.
thanks for help!
BR,
Scott