NJU7181RB1-TE1 Nisshinbo

NJU7181 SIGNAL LEVEL SENSOR SYSTEM PACKAGE OUTLINE GENERAL DESCRIPTION The NJU7181 is a signal level sensor system IC. It sends a High flag to the microprocessor or other equipments whenever it detects the existence of the audio signal. The NJU7181 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. NJU7181RB1 NJU7181KU1 Together with its adjustable Input Sensitivity (by external MSOP8 (TVSP8) resistor) & its characteristic of low current consumption and low operating voltage, NJU7181 is suitable for Eco-Design of Energy-using Products and for battery operated applications. FEATURES Operating Voltage 0.9 to 5.5V Low Operating Current 55 A typ. Delay circuit for long Recovery time Adjustable Recovery time by external capacitor Adjustable Input Sensitivity by external resistance C-MOS Technology Package Outline MSOP8 (TVSP8)* ESON8 *MEET JEDEC MO-187-DA / THIN TYPE APPLICATIONS Power Saving for battery operated devices Muting Application Memory saving for recording devices Half- duplex transmission application BLOCK DIAGRAM + V ON OFF + V External Trigger OUT D L Latch Level CLR Delay Detector IN Version 5.4E 1 NJU7181 PIN CONFIGURATION MSOP8 (TVSP8) ESON8 1 8 857 6 142 3 4 5 142 3 85 7 6 Surface Backside No. Symbol Function 1 IN AC Input 2 AMP OUT Amplifier Output 3 TRIN External Trigger Input 4 GND Ground 5 CAP D Delay Time Capacitor 6 RES D Delay Time Resister 7 OUT DC Output + 8 V Supply Voltage 2