WT6802 Datasheet PDF

Weltrend WT6802

WT6802 is designed to interface with a MCU to do the OSD (On Screen Display) function in CRT Monitor, besides the fancy auto-calibration function is also included. The on-chip PLL generates a wide-ranged system clock up to 60MHz to meet the resolution requirements(OSD resolution is programmable) of different display modes. The full OSD screen size is 30 columns x 15 rows, and the OSD position can be freely programmed by setting the interal registers.

Part No.	WT6802
Datasheet	WT6802 Download
Manufacturer	Weltrend
Description	Monitor OSD
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DESCRIPTION

Special functions include color font, character bordering, shadowing, blinking, double height, double width, all blanking effect, row to row spacing control, 4 windows with shadowing, and programmable fin in/fan out effect. WT6802 has 8 channels of PWM DAC, each PWM DAC can be respectively controlled by an 8-bit register which contains a 5-bit PWM and 3-bit BRM, and the PWM clock is also programmable. The horizonal back/front porch and vertical black/front porch data can be read by MCU through the I2C bus in order to do the horizontal size/center and vertical size/center auto-calibration.

FEATURES

sInput horizontal synchronous frequency … … .15k-130kHZ sDot Frequency generated by On-chip PLL … ..up to 160MHz sResolution … … … programmable, up to 2040 dots/line sScreen … … … … … … … … … ..30 columns x 15 rows sCharacter … ..12(H) x 18(V) dot matrix Fonts … … … … 512 characters and 16 color fonts MCU interface I2 C bus sColor(R, G, B with intensity attribute) Character foregr...