Introduction to the application circuit of D7698 scanning and color decoding circuit

D7698 is a highly integrated integrated circuit, which is actually a combination of D7609AP and D7193AP, but it adds PAL/NTSC receiving system switch circuit. The main functions are: video signal processing, chroma signal processing, synchronous separation and scanning. Circuit, etc. The application example is shown in Figure A, and the internal functions are shown in Figure B.

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Application circuit diagram of D7698 scanning and color decoding circuit

D7698 internal function circuit diagram


The voltage value of each foot when D7698 works normally

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