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A highly integrated chipset for wearable wireless body sound sensor is presented. It consists of a body sound sensor readout chip and a 400M-440MHz short range wireless transceiver chip. The sensor readout chip consists of a programmable preamplifier and an over-sampling ADC, and it consumes no more than 80μA current from 1.2V power supply. In the transceiver chip, the transmitter adopts a direct...
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