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TB1227CNG Datasheet(PDF) 1 Page - Toshiba Semiconductor |
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TB1227CNG Datasheet(HTML) 1 Page - Toshiba Semiconductor |
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1 / 94 page  TB1227CNG 2004-05-24 1 TOSHIBA Bi-CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC TB1227CNG VIDEO, CHROMA AND SYNCHRONIZING SIGNALS PROCESSING IC FOR PAL / NTSC / SECAM SYSTEM COLOR TV TB1227CNG that is a signal processing IC for the PAL / NTSC / SECAM color TV system integrates video, chroma and synchronizing signal processing circuits together in a 56-pin shrink DIP plastic package. TB1227CNG incorporates a high performance picture quality compensation circuit in the video section, an automatic PAL / NTSC / SECAM discrimination circuit in the chroma section, and an automatic 50 / 60Hz discrimination circuit in the synchronizing section. Besides a crystal oscillator that internally generates 4.43MHz, 3.58MHz and M / N-PAL clock signals for color demodulation, there is a horizontal PLL circuit built in the IC. The PAL / SECAM demodulation circuit which is an adjustment-free circuit incorporates a 1H DL circuit inside for operating the base band signal processing system. Also, TB1227CNG makes it possible to set or control various functions through the built-in I2C bus line. FEATURES Video section • Built-in trap filter • Black expansion circuit • Variable DC regeneration rate • Y delay line • Sharpness control by aperture control • γ correction • VSM output 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 forced mode • 1H delay line also serves as comb filter in NTSC demodulation • Built-in band-pass filter, SECAM bell filter • Color limiter circuit • Fsc output Synchronizing deflecting section • Built-in horizontal VCO resonator • Adjustment-free horizontal / vertical oscillation by count-down circuit • Double AFC circuit • Vertical frequency automatic discrimination circuit • Horizontal / vertical holding adjustment • Vertical ramp output • Vertical amplitude adjustment • Vertical linearity / S-shaped curve adjustment Weight: 5.55 g (typ.) TENTATIVE |
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