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| ( DataSheet : www..com ) Weltrend Semiconductor, Inc. WT6803 Monitor On-Screen Display Data Sheet REV. 1.01 September 24, 2001 The information in this document is subject to change without notice. (c)Weltrend Semiconductor, Inc. All Rights Reserved. 2F, No. 24, Industry E. 9 th RD., Science-Based Industrial Park, Hsin-Chu, Taiwan TEL:886-3-5780241 FAX:886-3-5794278.5770419 Email:support@weltrend.com.tw www..com WT6803 Data Sheet Rev. 1.01 GENERAL DESCRIPTION WT6803 is designed to interface with a MCU to do the OSD (On Screen Display) function in CRT monitor. The on-chip PLL generates a wide-ranged system clock up to 160 MHz 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 setting the internal registers can freely program the OSD position. 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. FEATURES * Programmable horizontal resolutions up to 2040 dots per line * Horizontal frequency up to 150kHz * Dot Frequency generated by On-chip PLL up to 160MHz * Fully programmable character array of 15 rows by 30 columns * 12x18 dot matrix per character * 256 characters and graphic symbols ROM including 16 multi-color fonts * 8 colors per display character * 7 colors per display character background * 4 programmable windows * 8 colors per display window * 8 colors per display window shadowing * Double character height and width control * Programmable character height (18 to 69 lines) * Programmable row-to-row spacing * Programmable OSD vertical and horizontal starting position * Bordering, shadowing and blinking effect * Fade-in/fade-out effects * I2C interface with slave address $7AH * Power supply: 5V * Package type: 16-pin plastic DIP PIN CONFIGURATION VSSA 1 NC 2 VCO 3 VDDA 4 HS 5 NC 6 SDA 7 SCL 8 16 VSS 15 R 14 G 13 B 12 BLANK 11 NC 10 VS 9 VDD Weltrend Semiconductor, Inc. Page 2 WT6803 WT6803 Data Sheet Rev. 1.01 PIN DESCRIPTION Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name VSSA NC VCO VDDA HS NC SDA SCL VDD VS NC FBKG B G R VSS I I I I/O Analog ground. No connection. I/O Loop filter of PLL. Analog power supply Horizontal sync input. No connection. I/O Serial data of I2C interface. Serial clock of I2C interface. Digital power supply Vertical sync input. No connection. Fast Blanking output. This pin controls the mixer of vedio amplifier O to cutoff the video signal while displaying character or window. O Blue color output O Green color output O Red color output Digital ground Description Weltrend Semiconductor, Inc. Page 4 |
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