TB1274BFG

www.DataSheet4U.com TB1274BFG TOSHIBA Bi-CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC TB1274BFG LUMINANCE, CHROMA AND SYNCHRONIZING SIGNALS PROCESSOR IC FOR PAL / NTSC / SECAM COLOR TV TB1274BFG integrates luminance, chroma and synchronizing signals processing circuits for PAL / NTSC / SECAM color TV system. TB1274BFG incorporates high performance picture quality compensation circuits in luminance section, an automatic PAL / NTSC / SECAM discrimination and decode circuits in chroma section, and an automatic 50 / 60 Hz discrimination circuit in synchronizing section. Besides a crystal oscillator generates 4.43MHz, 3.58MHz and QFP48-P-1014-0.80 M/N-PAL clock signals internally for color demodulation. A horizontal PLL circuit is also built in this IC. Weight : 0.83 g (Typ.) PAL / SECAM demodulation circuits which are adjustment-free circuits incorporates a 1H DL circuit inside for operating the base band signal processing system. Also, TB1274BFG makes it possible to set and to control various functions through the built-in I2C BUS line. FEATURES LUMINANCE SECTION Built-in chroma trap filter Y delay line Sharpness control Sub-Contrast control (-/+ 2dB) Black set-up CHROMA SECTION Built-in 1H delay circuit (PAL / SECAM base band demodulation system) One crystal color demodulation circuit (4.43MHz, 3.58MHz, M/N-PAL) Automatic system discrimination system and forced system mode 1H delay line also serves as comb filter in NTSC demodulation Built-in band-pass and ...