UPC1830

DATA SHEET BIPOLAR ANALOG INTEGRATED CIRCUIT µPC1830 FILTER-CONTAINING VIDEO CHROMA, SYNCHRONIZING SIGNAL PROCESSING LSI COMPATIBLE WITH NTSC/PAL SYSTEM DESCRIPTION The µPC1830 is a filter-containing video chroma, synchronizing signal processing LSI compatible with the NTSC/ PAL system. A decoder which converts composite video or separate Y/C video signals into a brightness signal and a color difference signal and outputs the result, and a matrix which comprises independent brightness signal/color difference signal input pins are integrated on one chip. Decoder output can be used to drive an A/D converter; it is appropriate for picture-in-picture screen signal processing and multimedia boards. FEATURES Contains a trap filter, band-pass filter, delay line, and color difference output low-pass filter. Peripheral parts can be drastically reduced. Low power consumption Appropriate for use with digital boards because of 5-V single power supply operation. DC control for user adjustment pins Centralized control can be performed by a microcontroller. One chip compatible with both NTSC and PAL systems Boards common to NTSC and PAL systems can be easily constructed. S pin input Supports composite and separate Y/C video signal inputs. Demodulation ratio/demodulation angle change (matrix) Demodulation ratio/demodulation angle can be selected in response to the NTSC or PAL system. Contains color difference tint control Fine adjustment of the demodulation axis can be mad...