NTE1435 Integrated Circuit Dual Audio Preamp Description: The NTE1435 is an integrated circuit in a 9–Lead SIP type package designed for preamp applications incorporating two channels such as car stereo applications. With stabilized power source built–in, this device offers high gain, low distortion, low noise, and high output voltage. Features: D High Gain and Low Noise D High Gain Over a Wide Range of Supply Voltage D Good Channel Separation Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17mA Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310mW Operating Ambient Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +75°C Storage Temperatuere Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C Electrical Characteristics: (TA = +25°C unless otherwise specified) Parameter Total Circuit Current Open Circuit Voltage Gain Output Voltage Total Harmonic Distortion Symbol Itot Test Conditions Min Typ Max Unit – 9 13 mA 85 90 – dB 1.0 1.8 – V VO = 300mV, GVC = 35dB – – 0.1 % Rg = 2.2kΩ, Note 1 – 1.2 2.0 µV 50 100 – kΩ – –65 – dB Vi = 0 GVO VO THD Noise Voltage Refered to Input Vni Input Impedance Zi Crosstalk CT THD = 1% f = 10kHz Note 1. Measured with 15Hz to 30Hz (–3dB) band pass filter. Pin Connection Diagram (Front View) 9 Ch 2 Input 8 Feedback 2 7 Ch 2 Output 6 VCC 5 GND 4 Ripple Filter 3 Ch 1 Output 2 Feedback 1 1 Ch 1 Input .929 (23.6) .118 (3.0) .236 (6.0) 1 9 .098 (2.5) .100 (2.54) .118(3.0)