利用PCA9605通过双绞线电缆驱动I2C总线信号 AN11075 Driving I2C-bus signals over twisted pair cables with PCA9605 Rev. 1 ― 19 August 2011 Application note Document information Info Content Keywords I2C-bus, 2-wire bus, twisted pair cables, LED lighting, communication cables, Cat5e, Cat6, Fast-mode, Fast-mode Plus, Fm+, inter-IC, SDA, SCL, PCA9605, RS-485, CAN bus Abstract The availability of powerful I2C buffers that drive their I/Os on both sides to a nominal ground or ‘zero offset’ logic level allows the removal of noise introduced into one section of a larger bus system. That ‘regeneration’ of clean I2C signal……