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NTE1514 and NTE1515 Integrated Circuit 5–Step LED Driver for Logarithmic Scale
Features: D Useful for Both AC and DC Level Meter as VU Meter or Signal Meter D Wide Supply Voltage Ramge: VCC = 4.4V to 12V D DC Amplifier Included Comparator Level: (TA = +25°C, VCC = 6V, Iref = 5mA)
NTE1514 Level D5 D4 D3 D2 D1 Pin 14 13 12 11 10 Test Conditions VR02 = 2.6V to 3V, VR02 = 0V VR02 = 2.6V to 3V, VR02 = 0V VR02 = 2.6V to 3V, VR02 = 0V VR02 = 2.6V to 3V, VR02 = 0V VR02 = 2.6V to 3V, VR02 = 0V Min 5.5 2.5 –0.5 –6.0 –12 Typ 6.0 3.0 0 –5.0 –10 Max 6.5 3.5 0.5 –4.0 –8.0 Min 1.6 –0.4 –3.6 –8.0 –17 NTE1515 Typ 2.0 0 –3.0 –7.0 –15 Max 2.4 +0.4 –2.4 –6.0 –13 Unit dB dB dB dB dB
Note 1. Definition of 0dB:
when voltage of OUT2 is 2.37V (R02 = 3V, R01 = 0V). when voltage of OUT2 is 1.