A1276中文资料东芝数据手册PDF规格书

PAL/NTSC Video Chroma And Deflection IC For CTV (normal scan/double scan mode)

TA1276AFG provides Video, Chroma and Deflection (sync, when double scan mode) circuit for a PAL/NTSC Color TV, and suitable for a high picture quality, large screen size, wide and/or double scanning TV. These functions are integrated in a 80 pin QPF plastic package.

TA1276AFG provides a high-performance video processor in which a YUV double scanning signal can be applied in Video, PAL/NTSC auto-detection circuit in Chroma and 50/60 Hz auto-detection circuit in Sync. PAL demodulation circuit includes Baseband signal processing system. And this demodulation circuit does not required any adjustment.

TA1276AFG includes I2C bus interface, so you can adjust various functions and controls via the bus.

特性 Features

• Video/chroma section

• Y delay line

• Chroma trap

• IQ demodulation for NTSC, UV demodulation for PAL

• BEP (back end processor) section

• Enable to process a YUV signal independently

• Double scanning signal processing capability (Y processing section)

• Black stretcher (controlled by I2C bus)

• DC restoration circuit (controlled by I2C bus)

• Highbright-color circuit

• D.L. aperture sharpness circuit + super real transcend circuit (LTI)

• DŽ correction (enable to control binary line, gain/start point)

• Y noise reduction circuit

• Velocity scan modulation output (the first order differential output and phase/amplitude adjustment)

(color difference section)

• Color detail enhancer

• Selectable relative phase and amplitude

• Flesh-color restoration

• Color DŽ circuit

• Baseband tint color

(text section)

• RGB primary color output

• On screen display interface

• Linear RGB interface

• Fast blanking

• Drive control

• AKB (only black level) or cut-off bus control

• Deflection section

• High performance sync. separation circuit

• Adjustment free H and V oscillation circuit by countdown system

• Horizontal and vertical position adjustment

• Sync separation, HD output

• Horizontal and vertical pulse output in normal mode.