LM1889

LM1889 TV Video Modulator PRELIMINARY April 1987 LM1889 TV Video Modulator General Description The LM1889 is designed to interface audio color difference and luminance signals to the antenna terminals of a TV receiver It consists of a sound subcarrier oscillator chroma subcarrier oscillator quadrature chroma modulators and RF oscillators and modulators for two low-VHF channels The LM1889 allows video information from VTR’s games test equipment or similar sources to be displayed on black and white or color TV receivers When used with the MM57100 and MM53104 a complete TV game is formed Features Y dc channel switching Y 12V to 18V supply operation Y Excellent oscillator stability Y Low intermodulation products Y 5 Vp-p chroma reference signal Y May be used to encode composite video Block Diagram DC Test Circuit Dual-In-Line Package Order Number LM1889N See NS Package Number N18A TL H 7917 – 1 C1995 National Semiconductor Corporation TL H 7917 TL H 7917 – 2 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 V14 V16 max Power Dissipation Package (Note 1) 19 VDC 1800 mW Operating Temperature Range 0 C to a70 C Storage Temperature Range Chroma Osc Current I17 max (V16 – V15) max (V14 – V10) max (V14 – V11) max Lead Temperature (Soldering 10 sec ) b55 C to a150 C 10 mADC g5 VDC 7V 7V 260 C D...