TW8832 INTERSIL | Alldatasheet

Document overview

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Technical content

Features

 NTSC (M, 4.34) and PAL (B, D, G, H, I, M, N, N combination), PAL (60), SECAM with automatic format detection  Three 10-bit ADCs and analog clamping circuit  Fully programmable static gain or automatic gain control for the Y or CVBS channel  Programmable white peak control for the Y or CVBS channel  Software selectable analog inputs  High quality adaptive 2D comb filter for both NTSC and PAL inputs  PAL delay line for color phase error correction  Image enhancement with 2D dynamic peaking and CTI  Digital sub-carrier PLL for accurate color decoding  Digital horizontal PLL and Advanced synchronization processing for VCR playback and weak signal performance  Programmable hue, brightness, saturation, contrast and sharpness  High quality horizontal and vertical filtered down scaling with arbitrary scale down ratio Analog RGB Inputs  Triple high speed 10-bit ADCs with clamping and programmable gain amplifier  SOG and H/V sync support for YPbPr or RGB input  Built-in line locked PLL with sync separator  Support analog input resolution up to 1080i or WXGA Digital Inputs Support  Support 656 video formats TFT Panel Support  Built-in programmable timing controller  Supports 3, 4, 6 or 8 bits per pixel up to 16.8 million colors with built-in dithering engine  Support digital panel up to WVGA/SVGA resolution  Support Serial (8-bit) RGB panel On Screen Display  256 programmable font RAM and 384 display RAM  Four windows font OSD with bordering / shadow  Supports bit-mapped based OSD through SPI (TW8832S only) Image Processing  High quality scaler with both up/down and nonlinear scaling support  Built-in 2D de-interlacing function  Programmable hue, brightness, saturation, contrast and sharpness  Supports programmable cropping of input video and graphics  Independent RGB gain and offset controls  Panorama/Water-glass scaling  Programmable 10-bit Gamma correction for each color  Operated in Frame Sync mode  Black/White Stretch Clock Generation  Spread spectrum clock  Modulation frequency and spread width are selectable

FIGURE 1. FUNCTIONAL BLOCK DIAGRAM