Other Parts Discussed in Thread: SN74LVC2G66,
Hi Expert,
In TDA4VM schematic doc, there is a voltage isolation SN74LVC2G66 to isolate I2C input (SOC_WKUP_I2C0_SDA)and output (WKUP_I2C0_SDA), the design purpose is to isolate and protect singal from different power domain (VSYS_MCUIO_3V3 and VSYS_IO_3V3), right?
But according to SoM I2C TREE DIAGRAM in page5 in schematic pdf, for other I2C signal which input and output are also from different power domain, there is no voltage isolation existed, please clarify why only SOC_WKUP_I2C0_SCL/SDA use a voltage isolation . this is for a customized HW design question.
Thanks