NTE1561 Integrated Circuit 5 LED VU Level Meter Description: The NTE1561 is a monolithic integrated circuit in a 9–Lead SIP type package designed for use as a 5 dot LED level meter driver. With a built–in rectifying amplifier, this device is suitable for AC/DC level meter applications such as VU meters or signal meters. Features: D Built–In High Gain Rectifying Amplifier (Av = 26dB) D Low Radiation Noise when LED Turns On D Logarithmic Indicator for Bar Type 5 Dot LED (–10, –5, 0, +3, +6dB) D Constant Current Output: IO = 15mA Typ D Wide Operating Supply Voltage Range: 3.5V to 16V D Minimum Number of External Components Required Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Amp Input Voltage, V8–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 to VCC Pin7 Voltage, V7–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V D Terminal Output Voltage, VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Circuit Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12mA D Terminal Output Current, ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA Power Dissipation, Pd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100mW Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11mW/°C Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +80°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C Electrical Characteristics: (TA = +25°C, VCC = 6V, f = 1kHz unless otherwise specified) Parameter Symbol Test Conditions Circuit Current ICC Vi = 0V D Output Current IO Vi = 0.15V Input Bias Current IB Amp Gain Av Comparator ON Level Min Typ Max Unit – 6.0 8.5 mA 15.0 18.5 mA 11.0 –1 – 0 µA 24 26 28 dB GD1 –12 –10 –8 dB GD2 –6 –5 –4 dB – 0 – dB GD4 2.5 3.0 3.5 dB GD5 5.0 6.0 7.0 dB GD3 Vi = 0.1V Note 1 Note 1. Definition of 0dB: Input voltage level when GD3 turn ON (50mV). Pin Connection Diagram (Front View) 9f VCC 8 Input 7 Amp Output 6 D5 5 GND 4 D4 3 D3 2 D2 1 D1 .110 (2.8) .870 (22.0) .235 (6.0) 1 9 .195 (5.0) .100 (2.54) .800 (20.32) .012 (0.30)