NTE1433 Integrated Circuit Audio Preamp Description: The NTE1433 is a linear integrated circuit in a 7–Lead SIP type package designed for use in high voltage preamplification applications. Features: D Power Supply with Wide Working Voltage Range (20–42 Volts) D High Open Loop Gain D Extremely Low Distortion D Low Noise D High Input Impedance and Low Output Impedance D Low Current Dissipation Application: D Stereos Radios & Tape Recorders Absolute Maximum Ratings: Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42V Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +75°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Electrical Charactersitics: Parameter Symbol Open Loop Voltage Gain GVO Max Output Voltage Vom Supply Current Icc Test Conditions Min Typ Max Unit 82 90 – dB 7.5 9.0 – Vrms VOUT = 0 – 3.5 – mA KF = 0.1%, RIAA Output Noise Voltage VNO Rg = 2.2kΩ, RIAA – 100 150 µVrms Input Noise Voltage VNI Rg = 2.2k RIAA – 1.0 1.5 µVRMS Total Harmonic Distortion THD VOUT = 5Vrms, RIAA – 0.03 – % Input Impedance Zin GVC = 40dB, RIAA – 130 – kΩ Output Impedance Zout GVC = 40dB, RIAA – 12 – Ω Pin Connection Diagram (Front View) 7 VCC 6 Output 5 Negative Feedback 4 GND 3 Positive Feedback 2 Input 1 Bias Comp .126 (3.2) Max .689 (17.5) Max .245 (6.2) Max .197 (5.0) 1 7 .190 (4.8) .099 (2.5) .590 (15.0)