NTE1818 Integrated Circuit Module, AF PO, 25W/Ch, Dual Power Supply Features: D Muting circuit to cut off pop noise D Greatly reduced heat sink due to case temperature +125°C guaranteed Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Maximum Supply Voltage, VCC max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±39V Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.6°C/W Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C Operating Case Temperature, TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +125°C Available Time for Load Shorted (VCC = ±26V, RL = 8Ω, f = 50Hz, PO = 25W), ts . . . . . . . . . . . 2sec Recommended Operating Conditions: (TA = +25°C unless otherwise specified) Recommended Operating Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±26V Load Resistance, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Ω Operating Characteristics: (TA = +25°C, VCC = ±26V, RL = 8Ω, Rg = 600Ω, VG = 40dB, RL: non–inductive load, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Quiescent Current ICCO VCC = ±31V 20 40 100 mA Output Power PO(1) THD – 0.4%, f = 20Hz ∼ 20kHz 25 – – W PO(2) VCC = ±22V, THD = 1.0% 25 – – W Total Harmonic Distortion THD PO = 1.0W, f = 1kHz – – 0.3 % Frequency Response fL, fH PO = 1.0W, –3dB Input Resistance Output Noise Voltage ri VNO Midpoint Voltage VN Muting Voltage VM 20 to 50k Hz PO = 1.0W, f = 1kHz – 55 – kΩ VCC = ±31V. Rg = 10kΩ – – 1.2 mVrms –70 0 70 mV –2 –5 –10 V VCC = ±31V Pin Connection Diagram 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Rt Ch Input (–) Rt Ch Input (+) GND Compensation (–) VCC Rt Ch Output Bypass (+) VCC Lt Ch Output (–) VCC Compensation Compensation Muting Compensation Compensation Compensation Lt Ch Input (+) Lt Ch Input (–) 2.520 (64.0) 2.190 (55.6) .334 (8.5) 1.440 (36.4) 1 18 .141 (3.6) Dia (2 Holes) .737 (18.7) 1.030 (32.5) .158 (4.0) .100 (2.54) 1.700 (43.18) .114 (5.5)