LM2889 Datasheet | National Semiconductor

Description The LM2889 is designed to interface audio and video signals to the antenna terminals of a TV receiver It consists of a sound subcarrier oscillator and FM modulator video clamp and RF oscillators and modulators for two low-VHF channels The LM2889 allows video information from VTRs video disk systems games test equipment or similar sources to be displayed on black and white or color TV receivers Features Y Y Y Y Y Y Pin for pin patible with LM1889 RF section Low distortion FM sound modulator (less than 1% THD) Video clamp for AC-coupled video Low sound oscillator harmonic levels 10V to 16V supply operation DC channel switching Excellent oscillator stability Low intermodulation products Block and Connection Diagrams (Dual-In-Line Package) Order Number LM2889N See NS Package Number N14A DC Test Circuit TL H 5079 - 1 C1995 National Semiconductor Corporation TL H 5079 RRD-B30M115 Printed in U S A Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Power Dissipation Package (Note 1) Operating Temperature Range 18VDC 700 m W 0 C to a 70 C Storage Temperature Range (V14 - V13) Max (V12 - V8) Max (V12 - V9) Max Lead Temperature (Soldering 10 seconds) b 55 C to a 150 C g 5VDC 7VDC 7VDC 260 C DC Electrical Characteristics (DC test circuit all switches normally pos 1 VS e 12V VA e 2V VB e VC e 10V) Parameter Supply Current IS Sound Oscillator Current DI13 Sound Oscillator Zener Current I13 Sound Modulator Audio Current DI13 Video Clamp Voltage V2 Unloaded Loaded Video Clamp Capacitor Discharge Current (VS - V2) 105 Ch A Oscillator OFF Voltage V6 V7 Ch A Oscillator Current Level I7 Ch B Oscillator OFF Voltage V4 V5 Ch B Oscillator Current Level I4 Ch A Modulator Conversion Ratio DV9 (V11-V10) Ch B Modulator Conversion Ratio DV8 (V11 - V10) SW1 Pos 2 VB e 10V VC e 11V Measure DV9 by Changing from VB e 10V VC e...