Nisshinbo Micro Devices Sound Sensors, Directional, High/Low Output

The New Japan Radio NJU7181 series is signal level sensor system IC. It sends a High flag to the microprocessor or other equipment's whenever it detects the existence of the audio signal. The product includes a delay circuit which allows the IC continue to hold the flag after the absence of the audio signal. This holding time can be adjusted with external capacitor.

Operating Voltage is 0.9 to 5.5V
Low Operating Current
Delay circuit for long Recovery time
Adjustable Recovery time by external capacitor
Adjustable Input Sensitivity by external resistance
CMOS Technology

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