Calterah Semiconductor Technology (Shanghai) Co., Ltd

Fazhi An

Wenting Zhou

Yafei Shi

Tao Gong

The sensing system includes at least one chip branch. In the chip branch, a clock circuit of each sensing chip integrates the received working clock signal to obtain stable clock signal that has a relative high frequency to be subjected to frequency dividing, and a frequency dividing circuit performs frequency dividing processing on the clock signal to obtain a working clock signal required by a next-stage sensing chip. In the cascade structure, a clock source only needs to satisfy the driving requirement of a first-stage sensing chip, and the working clock signal required by each of other sensing chips is provided by a previous-stage sensing chip, such that the problem that the number of sensing chips connected in series in the chip branch is limited by the driving capability of the clock source is solved, and the applicability of the sensing system is widened.

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Shanghai, China

Fazhi An