NTE1480 Integrated Circuit 2−Channel Audio Preamp Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 540mW Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30° to +125°C Electrical Characteristics: (TA = +25°C, VCC = 25V unless otherwise specified) Parameter Symbol Quiescent Current IQ Test Conditions Min Typ Max Unit 2−Channe; Total 8.9 11.9 17.8 mA Open−loop Voltage Gain GV(OL) f = 1kHz 80 95 − dB Output Voltage VOUT f = 1kHz, RL = 10kΩ, THD = 10% 6.0 7.5 − V Total Harmonic Distortion THD f = 1kHz, VOUT = 1V − 0.02 0.05 % Total Equivalent Input Noise WBN Rg = 3.3kΩ, BW = 30Hz to 30kHz − 1.0 2.0 μV Pin Connection Diagram GND 1 14 N.C. Output 2 13 Output Feedback 3 12 Feedback/ Freq Comp VCC 4 11 To Pin4 Feedback/ Freq Comp 5 10 Feedback/ Freq Comp Input 6 9 Input Feedback 7 8 Feedback 14 8 1 7 .785 (19.95) Max .300 (7.62) .200 (5.08) Max .100 (2.45) .600 (15.24) .099 (2.5) Min