AL251A-EVB-A0 Scan Converter Evaluation Board User Manual Version 1.0 INFORMATION FURNISHED BY AVERLOGIC IS BELIEVED TO BE ACCURATE AND RELIABLE. HOWEVER, NO RESPONSIBILITY IS ASSUMED BY AVERLOGIC FOR ITS USE, NOR FOR ANY INFRINGEMENTS OF PATENTS OR OTHER RIGHTS OF THIRD PARTIES THAT MAY RESULT FROM ITS USE. NO LICENSE IS GRANTED BY IMPLICATION OR OTHERWISE UNDER ANY PATENT OR PATENT OR PATENT RIGHTS OF AVERLOGIC. Document Number: 1-M-PAE351-0001 ©2006 Copyright by AverLogic Technologies, Corp. Amendments: 2006.06.27 (Since June 27, 2006) version 1.0 Disclaimer THE CONTENTS OF THIS DOCUMENT ARE SUBJECT TO CHANGE WITHOUT NOTICE. AVERLOGIC TECHNOLOGIES RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HERIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AVERLOGIC DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HERIN; NEITHER DOSE IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. CUSTOMERS ARE ADVISED TO CONSULT WITH AVERLOGIC OR ITS COMMERCIAL DISTRIBUTORS BEFORE ORDERING. ©2006 Copyright by AverLogic Technologies, Corp. TABLE OF CONTENTS 1. Introduction ...............................................................................................................................................1 1.1. Introduction ............................................................................................................................... 1 1.2. Product Overview...................................................................................................................... 1 1.2.1. AL128.................................................................................................................................1 1.2.2. AL251.................................................................................................................................1 2. Hardware Section ......................................................................................................................................2 2.1. Contents of EVB Kit.................................................................................................................. 2 2.2. Hardware Installation ................................................................................................................ 3 2.2.1. VGA TO TV Signal Hardware Installation .........................................................................3 2.2.2. TV Signal TO VGA Hardware Installation .........................................................................3 2.3. Block Diagram and Settings ...................................................................................................... 3 2.3.1. Block Diagram...................................................................................................................3 2.3.2. Connector Descriptions .....................................................................................................4 2.3.3. Button Descriptions .............................................................................................................4 2.3.4. LED Descriptions ................................................................................................................5 2.4. OSD Operation .......................................................................................................................... 5 2.4.1. AL128 OSD OPERATION .................................................................................................5 2.4.2. AL251 OSD OPERATION .................................................................................................5 ©2006 Copyright by AverLogic Technologies, Corp. 1. Introduction 1.1. Introduction The AL251A-EVB-A0 is an engineering evaluation board that is used to evaluate and demonstrate the performance of the AL128 VGA to TV scan converter chip and AL251 TV to VGA scan converter chip. The board contains two 3M bits of field memory (AL422B) for AL128, and one video decoder (AL242) for AL251. An attached 80C51 microcontroller is used to control AL242 and AL251 via 2-wire Serial Bus. The evaluation board accepts VGA analog signals or analog video signals. AL128 converts the analog VGA signal into NTSC/PAL S-video and composite video (CVBS), or analog RGB for SCART application. Additional bypass VGA output could be added via the video buffer. This implementation can display at both the monitor and TV simultaneously. Through AL251 and AL242, it accepts NTSC/PAL S-video or composite video (CVBS) and converts into VGA analog signal output or 16-bits digital RGB/YUV output. Various switches and buttons are designed in the evaluation board for ease of demonstrating and testing the functions. For detailed descriptions of each connector, button and LED, please refer to “Block diagram and settings” section. The board uses an external DC power adaptor (+12V/1A). 1.2. Product Overview 1.2.1. AL128 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! Converts non-interlaced VGA into interlaced TV format (NTSC/PAL) Composite video and S-Video outputs Analog RGB output for SCART interface Highly integrated design with built-in NTSC/PAL encoder, ADC, DAC and SRAM High clarity 5-line anti-flicker filter 8 levels of sharpness control Supports up to full 1024x768 VGA resolution Automatically supports scan rate from 50 Hz up to 100 Hz Linear vertical and horizontal overscan/underscan control Zoom and freeze controls Four-touch-button interface with OSD (on TV) to control all key functions Picture panning control Brightness control Built-in color bar Simultaneously displays on PC and TV monitors 1.2.2. AL251 ! ! ! ! ! Converts interlaced TV signal (NTSC/PAL) into non-interlaced RGB format for CRT monitorsor LCD panels Highly integrated design with built-in DAC,SRAM, OSD and LUT Built-in on-screen-display with programmable bitmap Auto NTSC/PAL detection Analog/digital non-interlaced RGB (VGA) signal output (Scan Doubled or ©2006 Copyright by AverLogic Technologies, Corp. Version 1.0 1 ! ! ! Deinterlaced) Internal RGB video lookup table (LUT) to provide gamma correction and special effects Overlay support for title making and complex on-screen display 16-bit digital RGB/YUV output PowerJack DC-12V VGA OUTPUT OFF Power Switch ON D4 JP4 AL- 251A- T- 0 VGA INPUT D3 D2 D1 AL- 128B- T- 0 S9/ LUT JP6 1 2 3 S12/ RST 128 S8/ SELECT215/128 MCU JP3 S14 S15 S13 S11 S10/ BORDER CVBS JP7 S- VIDEO S2/ RST MCU S7/AV/SV S6/MENU S5/SELECT S4/DEC S3/INC S16/MENU S17/SELECT S18/DEC S/19INC 2. Hardware Section 2.1. Contents of EVB Kit ! ! ! ! ! ! EVB Board Power Adapter VGA Cable RCA Cable S-video Cable Quick Setup Guide X X X X X X 1 1 1 1 1 1 ©2006 Copyright by AverLogic Technologies, Corp. Version 1.0 2 2.2. Hardware Installation 2.2.1. VGA TO TV Signal Hardware Installation 1) Connects RCA cable or S-Video cable between the EVB and TV 2) Connects VGA cable between the VGA output jack of EVB and the video signal source 3) Connects the power supply plug 2.2.2. TV Signal TO VGA Hardware Installation 1) Connects RCA cable or S-Video cable between the EVB and the video signal source 2) Connects VGA cable between the VGA output jack of EVB and VGA monitor 3) Connects the power supply plug 2.3. Block Diagram and Settings 2.3.1. Block Diagram 12V AL422Bx2 VGA in MD MQ Control GVSYNC GHSYNC PC VGA output PLL TV Output RGB GCLK Comp AL128 Y VGA monitor C VGA out I2C Bus GHS/GVS Digital RGB AL128 (in) AL251 (out) Video Input Push Button R,G,B AL251 16-bit YUV Comp AL242 Decoder Y C HS/VS I2C Bus Microcontroller ©2006 Copyright by AverLogic Technologies, Corp. Push Button Version 1.0 3 2.3.2. Connector Descriptions Reference J1 J2 J3 J4 JP1 JP2 JP3 JP4 JP5 JP6 CON1 Description Composite Video (CVBS) Input/Output VGA Output VGA Input Power Jack Digital Video (16-bits RGB/YUV or 24-bits RGB MSB Bits) Input/Output Backlight Controller Interface AL128 2-wire Serial Bus Interface AL251 2-wire Serial Bus Interface 24-bits Digital RGB LSB Interface Analog RGB Output S-Video Input/Output 2.3.3. Button Descriptions Reference S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 Description Backlight controller switch Micro-controller reset button AL251 INCREASE button AL251 DECREASE button AL251 SELECT button AL251 MENU button AL251 input video source switch button (composite video and S-video) AL251 BORDER button AL251 LUT (Gamma correction) button AL128/AL251 Select button AL128 RSET pull-down resistance select " 150 ohm pull-down for RGB output " 90 ohm pull-down for Y/C/Composite output AL128 Reset button AL128 RGB/YC select 2-wire serial bus or Vsync Programming NTSC/PAL output select AL128 MENU button AL128 SELECT button AL128 INCREASE button AL128 DECREASE button ©2006 Copyright by AverLogic Technologies, Corp. Version 1.0 4 2.3.4. LED Descriptions Reference D1 D2 D3 D4 Description Program status indicator AL128 selected indicator (VGA to TV signal) AL251 selected indicator (TV signal to VGA) Power on indicator (Red LED) 2.4. OSD Operation 2.4.1. AL128 OSD OPERATION 1) To pop up the on screen menu, press the [AL128_Menu] button 2) To select a control function, use [AL128_Increase] or [AL128_Decrease] button to scroll to it, then press [AL128_Select] button 3) After selecting a control function, use [AL128_Select], [AL128_Increase] or [AL128_Decrease] button to adjust the control settings 4) To exit the on screen menu, press [AL128_Menu] again 2.4.2. AL251 OSD OPERATION 1) To select AL251 channel, press the [AL251/128 Select] button 2) To select the video source between composite video and S-video, press the [AL251_Source] button 3) To pop up the Brightness setting menu on screen, press the [AL251_Menu] button 4) Use [AL251_Increase] or [AL251_Decrease] button to adjust the brightness effects 5) To adjust other settings, press the [AL251_Select] button 6) Use [AL251_Increase] or [AL251_Decrease] button to adjust these control effects 7) To exit the on screen menu, press [AL251_Menu] again 8) You can use the [AL251_LUT] button to add the gamma correction table ©2006 Copyright by AverLogic Technologies, Corp. Version 1.0 5 ONTACT INFORMATION AverLogic Technologies, Corp. URL: http://www.averlogic.com ©2006 Copyright by AverLogic Technologies, Corp. Version 1.0 6