TA1270BF

TA1270BF TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA1270BF PAL / NTSC VIDEO CHROMA AND SYNC PROCESSING SYSTEM FOR PIP / POP / PAP TA1270BF is a PAL / NTSC color TV signal processor IC suitable for PIP / POP / PAP. The IC integrates video, chroma and sync processor circuits. It comes in a 48pin flat package. The video block uses a chroma trap, the chroma block a PAL / NTSC automatic identifier circuit, and the sync processor block a 50 / 60 Hz automatic identifier circuit. The PAL demodulator circuit contains a baseband signal processor, making the circuit adjustment free. The TA1270BF incorporates an I2C bus, enabling control to be set via the bus line. FEATURES Video block l Chroma trap l Y delay line l Sub contrast adjustment (±3 dB) Weight: 0.83 g (Typ.) CHROMA block l UV / CbCr demodulation for NTSC ; UV demodulation for PAL l Tint control l PAL demodulation baseband signal processing l PAL / NTSC automatic identification l Sub color adjustment (±3 dB) Sync processor block l High-performance sync separator circuit l Adjustment-free horizontal and vertical oscillator circuit using count down method l 50 / 60 Hz automatic identifier circuit Switch block l High-speed switcher circuit l YUV or RGB input l Built-in RGB matrix circuit l YUV or RGB output 1 2002-12-24 BLOCK DIAGRAM TA1270BF 2 2002-12-24 PIN FUNCTION PIN No. PIN NAME FUNCTION 1 X’tal-1 2 X’tal-2 3 X’tal-3 Connect crystal. Serial capacitance can vary oscillator frequency f0 ...