NTE1517

NTE1517 Integrated Circuit Dual Audio Preamp w/ ALC Description: The NTE1517 is an integrated circuit consisting of a dual preamplifier with ALC. It is designed for use in stereo equipment or radio−cassette recorders. The device consists of two independent high−gain, low−distortion amplifiers and ALC on a single chip. By using an external switch, the NTE1517 can be used as a stereo preamplifier with good channel balance. Features: D Low Noise: VNI = 1μVrms (Rg = 620Ω, BW = 20Hz to 20kHz) D High Gain: GVO = 80dB typ. D Low Distortion: THD = 0.1% typ. (GVC = 46dB, VO = 0.3Vrms) D Low Supply Current: 6mA typ. D Built−in Circuit to Reduce Shock−Noise at Switch−On D Does not require an Input Coupling Capacitor Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Circuit Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27mA Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650mW Thermal Derating (TA ≥ 25°C), Kθ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5mW/°C Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +125°C Electrical Characteristics: (TA = +25°C, f = 1kHz, Rg = 620Ω, VCC = 9V, unless otherwise specified) Parameter Circuit Current Open Loop Voltage Gain Symbol ICCO GVO Test Conditions Quiescent VO = 0.3Vrms VCO = 5V VCO = 9V VCO = 12V Total Harmonic Distortion Closed Loop Voltage Gain Input Resistance Max. Output Voltage Output Noise Voltage ALC Distortion ALC Balance ALC Range THD GVC Ri VOM NO ΔVALC ALC THD = 3% BW = 20Hz to 20kHz Vi = −40dBv, −10dBv THD = 10% VO = 0.3Vrms Min 3 67 67 67 − 44 17 1.3 − − − 40 Typ 6 77 80 81 0.1 46 27 2.0 210 0.2 0 55 Max 10 − − − 0.5 48 38 − 650 1.2 2.5 − Unit mA dB dB dB % dB kΩ Vrms μVrms % dB dB THDALC Vi = −40dBv Pin Connection Diagram 10 Filter 9 8 7 6 5 4 3 2 1 Rt Ch Feedback Rt Ch Input Rt Ch Output VCC ALC Control GND Lt Ch Output Lt Ch Input Lt Ch Feedback .953 (24.1) .257 (6.5) .127 (3.2) .334 (8.48) 1 16 .125 (3.17) .059 (1.5) .118 (3.0)