The PD64084 realizes a high precision Y/C separation by the three-dimension signal processing for NTSC signal. This product has the on-chip 4-Mbit memory for flame delay, a high precision internal 10-bit A/D converter and D/A converter, and adapting 10-bit signal processing (only for luminance signal) and high picture quality. The PD64084 is completely single-chip system of 3D Y/C separation. This LSI includes the Wide Clear Vision ID signal (Japanese local format) decoder and ID-1 signal decoder.