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Hello Lily Lin,
Can you repost your question in English?
Thank you for your reply!
The question as follows,
How can use some filters or some other ways to clean the stationary noise in the I2C link(SDA/SCL)?
The stationary noise is between 30KHz and 100KHz, appeared per 3Khz step and 5Khz step, and it is about 300mv to 600mv.
Ok! About the first way, I have some questions,
You said increase the voltage of I2C means increase the transmitted datas voltage? In my opinoin, I2C is just the supporter to keep the datas between host device and slave ones.
Very very sorry for my so late reply.
I know the noise source, and I have no tested noise pictutes now.
In fact, the trobled problem is that, LCD has some noise signals disturb the TP normal performance. And both TP and LCD have no many useful ideals to solve it. So I think whether I can try the I2C lines to clear the datas TP got.