DESCRIPTION
HM9208  is a one-point-in-ear two-point touch control IC, one is used for in-ear detection, and the other is used for function touch buttons, which is used in TWS products with in-ear detection.

Features
● Working voltage: 2.0V~5.5V
● Low power consumption mode about 5uA (at 3.3V and no load)
● Sensitivity automatic calibration function, can quickly and automatically adapt to changes in the working environment
● High reliability, the chip has a built-in debounce circuit, which can effectively prevent malfunction caused by external noise interference
● Complete development of host computer software to make the product more stable
● Can be used on the surface of glass, ceramics, plastics and other media
● Good anti-interference performance, ESD can reach 4KV.
● Package: DFN2*2-8