Asahi Kasei Microdevices AK5707 Low Power 16-Bit Monaural ADC

Asahi Kasei Microdevices AK5707 Low Power 16-Bit Monaural ADC includes the Acoustic Activity Analyzer (AAA), which can detect specific acoustic events. By utilizing the AAA, the Asahi Kasei Microdevices AK5707 ADC enables connected products to conserve battery life by allowing the system SoC to remain in sleep mode until user-defined audio activity occurs. With a consumption of only 34μA while monitoring the target sound, once qualifying audio activity is detected, the integrated audio buffer starts recording, and a wakeup interrupt is sent to the system SoC. This allows the SoC to read the AK5707’s audio buffer and analyze its contents without missing any audio activity that occurred during the boot.