Click to expand full text
NTE1513 Integrated Circuit 9–Step LED Driver Circuit for Logarithmic Scale
Functions: D Indication Way: Indicates input level in a series bar by 9 red or green LED’s D Input Amp: DC amp installed the aim of which can be varied by a peripheral resistor. D Comparator Level: Designed with 3dB rate; –18dB, –15dB, –12dB, –9dB, –6dB, –3dB, 0dB, +3dB, +6dB D Supply Voltage: Wide recommended supply voltage: 5.5 to 16V At Vref2: 7 to 16V D Reference Voltage: Vref (5V) pin can prepare another voltage regulator with added transistor Applications: D For AC Level Meter as VU Meter D For DC Level Metetr as Signal Meter Comparator Level: (TA =+ 25°C, VCC = 12V, Vrefl = 3V)
Comparator Level D1 D2 D3 D4 D5 D6 D7 D8 D9 Pin 7 8 9 10 11 12 13 14 15 Min 0.11 0.20 0.30 0.45 0.66 0.97 1.40 2.02 2.90 Typ 0.