MAX4455 Evaluation Kit/Evaluation System MAX4455 evaluation kit)
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MAX4455 Evaluation Kit/Evaluation System
MAX4455 evaluation kit) assembled tested circuit board that demonstrates MAX4455 arbitrary graphics on-screen display video generator. Windows® software provides handy user interface exercise features MAX4455. (Windows 2000 supported, severely reduced data rate.) Order complete evaluation system system) (MAX4455EVSYS) comprehensive evaluation MAX4455 using recommended crosspoint switch. bidirectional parallel port required. Order (MAX4455EVKIT) with other userdefined external solutions.
Windows registered trademark Microsoft Corp.
Features
Character Generation Using Fonts from Host Demonstration Software Test Patterns Included Proven Board Layout Convenient On-Board Test Points Fully Assembled Tested
Evaluate: MAX4455
Ordering Information
PART MAX4455EVSYS MAX4455EVKIT TEMP RANGE DESCRIPTION +70°C +70°C Complete system Requires user-supplied fast switch*
MAX4455EVSYS Component List
PART MAX4455EVKIT MAX4358EVKIT DESCRIPTION 8-channel on-screen display crosspoint switch
*Refer MAX4455 data sheet.
Component List
DESIGNATION C1-C17, C19, C21, C22, C24-C29, C31, C23, C30, C32, C35, C36, C39, C40, C43, C44, C33, C34, C37, C38, C41, C42, C45, C49-C56 JU1-JU8 DESCRIPTION 0.1µF ±10%, ceramic capacitors (0402) 330µF ±20%, low-ESR capacitors (case 390µF ±20%, 6.3V low-ESR capacitor (case 0.01µF ceramic capacitor (1206) 470pF ±10%, ceramic capacitors (0402) 0.047µF ±10%, ceramic capacitors (0402) Leave open right-angle header right-angle header Leave open 2-pin jumper Shunt resistor (1/4W axial leaded) None VSYNC0- VSYNC7 None None None None DESIGNATION R2-R9 R10-R17 DESCRIPTION resistors (0402) resistors (0402) 6-position terminal blocks MAX4455ECQ Dynamic Micron MT48LC1M16A1TG-7S MAX8867EUK33 Full-size crystal oscillator International Crystal Manufacturing Corp., Inc. Catalog IT1100FSS, custom 40.5MHz, 3.3VDC Socket pins female jacks Leave open board MAX4455 software CD-ROM MAX4455 data sheet MAX4455 data sheet DB25 plug connector with ribbon cable Digi-Key M7PXG-2SO6J equivalent
Maxim Integrated Products
pricing, delivery, ordering information, please contact Maxim/Dallas Direct! 1-888-629-4642, visit Maxim's website www.maxim-ic.com.
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
Quick Start
Recommended Equipment
Before begin, following equipment needed: Dual-output power supply, 500mA Computer running Windows 98/2000, with bidirectional parallel port Video signal sources (such cameras) Video monitor(s) MAX4455 MAX4358 25-pin extension cable (included kit) Confirm that on-screen display working selecting text tool then clicking middle large blue display control area. Character Generator dialog pops Click copy text on-screen display memory. Both computer video monitor should show key/fill text. Note: parallel port interface bandwidth severely limits graphics transfer rate between MAX4455 host
Table MAX4455 System Power Connections
MAX4455 TERMINAL +3.3V DGND VKEY AGND MAX4358 TERMINAL AGND DGND REQUIRED POWER SUPPLY Leave unconnected. Supplied onboard linear regulator. Digital ground return. OSDFILL power. Connect supply. Analog ground return. Main power. Connect supply. Host power. Connect supply. REQUIRED POWER SUPPLY Connect supply. Analog ground return. Connect supply. Digital ground return. Connect supply.
Procedure
Carefully connect boards aligning rightangle headers MAX4455 with corresponding headers MAX4358 kit. Gently press them together. boards should flush against another. With power supply off, connect power supply MAX4358 terminal block (see Table With power supply off, connect power supply MAX4455 terminal block (see Table Install system software your computer running INSTALL.EXE program CD-ROM. program files copied icons created them Windows Start menu. Note: Windows 2000 requires extra installation step; refer file win2000.pdf. Ensure that MAX4358 jumpers JU1-JU4 open. Turn power supply. Connect 25-pin extension cable between computer's parallel port MAX4358 kit. MAX4358 includes suitable 25-pin extension cable. Snap included ferrite bead reduce PC-generated noise from affecting video boards. Start program opening icon Start menu. Connect video signal sources IN00.IN03 MAX4358 kit. Connect video displays OUT00.OUT03 MAX4358 kit. Confirm that software successfully connected video source IN00 video monitor OUT00. video signal should visible monitor.
Detailed Description Software
MAX4455 software simple effective paint program that draws on-screen display memory. There nine drawing windows: each eight on-screen display channels, master window simultaneously writing multiple channels. large blue area represents on-screen display memory. Each pixel this area corresponds pixel on-screen display memory. Transparent areas blue. OSDKEY signal automatically generated pixel that transparent. software implements simple tools drawing lines, boxes, text. User-generated graphics loaded from standard Windows bitmap files, contents on-screen display saved standard Windows bitmap file. Tables 2-10 describe buttons found various toolbars.
MAX4455 Evaluation Kit/Evaluation System
Loading Saving Files
MAX4455 on-screen display uses 15-level grayscale patterns. When MAX4455 software saves image windows bitmap, each pixel on-screen display image converted from 15-level grayscale into equivalent value: osd_value 0x0F; (osd_value unsigned _int8 unsigned _int8 green unsigned _int8 blue 255; else unsigned _int8 greyscale_nybble osd_value double luma (greyscale_nybble 256.0 16.0); (luma 255.0) luma 255.0; (luma luma unsigned _int8 luma; unsigned _int8 green luma; unsigned _int8 blue luma; color =((blue 0x10000) (green 0x100) (red)); When MAX4455 software loads Windows bitmap image, each pixel image converted from into equivalent brightness (luma) value, accordance with following equation: Luma (0.299 Red) (0.587 Green) (0.114 Blue) MAX4455 software uses pure saturated blue (RGB value green blue 255) designate transparent pixels. Example code: converting value into MAX4455 on-screen display control nybble: const double 0.299, 0.587, 0.114, offset double luma green blue offset; unsigned _int8 greyscale_nybble ((luma 16.0) 256) 0.5; (greyscale_nybble 15+1) greyscale_nybble 15+1; (greyscale_nybble 1+1) greyscale_nybble 1+1; osd_control_value greyscale_nyb
Creating Test Patterns
Simple brightness-gradient test patterns drawn interactively using horizontal vertical luma drawing tool. Click desired tool button then drag mouse across opposite corners desired region. white always drawn near where mouse first clicked. grayscale levels drawn, additional transparent drawn just after black bar. Custom test patterns created using paint program that read write Windows bitmap files. Always start with pure saturated blue background (RGB value green blue 255) transparent background. Capture program's output pressing ALT+ PrintScreen, then paste into Windows Paint program save bitmap. example: MAX4455 software. Click View Channel button Draw some luma bars palette (optional). drawing
Evaluate: MAX4455
Locate your monitor's overscan boundary pointing camera black field, choose contrasting drawing color select free-hand drawing tool drag mouse around edges on-screen display (optional). Click Save button screen display memory. saving empty
Edit saved bitmap using suitable paint program. Load your newly created test pattern using Load button test pattern copied into on-screen display memory.
Using Shared Memory
MAX4455 insert horizontal band on-screen display information from different channel. This example draws vertical bars channel horizontal bars channel then shares part channel memory into channel display. Click View Channel button Maximize window. Click Vertical luma bars drawing tool, drag mouse from upper-left corner drawing area lower-right corner drawing area. (Once drawing begins, minimize window improve drawing speed.) Click View Channel button Maximize window.
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
Click Horizontal luma bars drawing tool, drag mouse from upper-left corner drawing area lower-right corner drawing area. Click Shared Memory from Channel button Click Define Shared Memory button drag mouse from bars bottom same bar. View video display connected OUT02. host software displays colored rectangle indicating band shared memory. monitor displays horizontal bars test pattern, replacing shared memory band with vertical bars pattern from channel
NOTE: EACH SINGLE-CHANNEL SCREEN PROVIDES DRAWING TOOLS, LUMA VALUES PALETTE, TIME STAMP. Figure MAX4455 Single-Channel Write
MAX4455 Evaluation Kit/Evaluation System
Using Time Stamp
Click View Channel button Enable software time stamp clicking Time Stamp button Click Query button move mouse cursor locate bottom NTSC lines time stamp. Click View Channel button Click Define Shared Memory button Define bottom shared memory band dragging mouse from NTSC line time stamp bottom NTSC line time stamp. Click Shared Memory from Channel button parallel port interface bandwidth severely limits graphics transfer rate between MAX4455 host
Evaluate: MAX4455
NOTE: SINGLE-CHANNEL WRITE EXPERT MODE PROVIDES DIRECT ACCESS CHANNEL REGISTERS. Figure MAX4455 Single-Channel Write-Expert Mode
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
NOTE: MAIN SCREEN PROVIDES MULTIPLE-CHANNEL WRITE TOOLS REGISTERS. Figure MAX4455 Multiple Channel Write
Low-Level Register Access
MAX4455 registers accessed directly expert mode, which enabled clicking Expert Mode button (see Table Normally, user interface automatically writes affected registers soon control changed. check "postpone automatic updates,"
write operation control exact moment when register updated. example, type "150" into VOFFSET edit field, then click VOFFSET button perform write.
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
NOTE: MULTIPLE CHANNEL WRITE EXPERT MODE PROVIDES DIRECT ACCESS MULTIPLE-CHANNEL REGISTERS. Figure MAX4455 Multiple Channel Write-Expert Mode
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
Table Command Buttons
BUTTON FUNCTION Load bitmap file into on-screen display memory Save on-screen display memory bitmap file Decrease vertical offset, moving on-screen display overlay Increase vertical offset, moving on-screen display overlay down Decrease horizontal offset, moving on-screen display overlay left Increase horizontal offset, moving on-screen display overlay right Inhibit fill video insertion. Pass video signals with on-screen display. Toggle Expert Mode off, enabling direct access MAX4455 registers Erase on-screen display memory Display help file
Table Drawing Tool Buttons
BUTTON FUNCTION Read luma fill value stored selected line column Freehand drawing single-pixel points dragging mouse Freehand drawing whole quad-pixel groups dragging mouse Draw open rectangle dragging mouse across opposite corners desired region Draw rectangle filled with selected luminance value dragging mouse across opposite corners desired region Draw rectangle filled with horizontal bars varying luminance dragging mouse across opposite corners desired region
Draw rectangle filled with vertical bars varying luminance dragging mouse across opposite corners desired region Place text where mouse clicked. This button runs character generator dialog select font insert text. Load bitmap file into on-screen display memory. upper-left corner bitmap placed where mouse clicked. Read portion on-screen display memory into host dragging mouse across opposite corners desired region
Table Shared Memory Tool Buttons
BUTTON FUNCTION Define bottom shared memory band dragging mouse across opposite corners desired region Select channel source shared memory Select channel source shared memory Select channel source shared memory Select channel source shared memory Disable shared memory
Table Time Stamp Buttons
BUTTON FUNCTION Place time stamp where mouse clicked Enable disable time stamp Enable disable date stamp Select font time/date stamp
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
Table Multiple Write Buttons
BUTTON FUNCTION Enable disable channel when writing multiple channels Enable disable channel when writing multiple channels Enable disable channel when writing multiple channels Enable disable channel when writing multiple channels Enable disable channel when writing multiple channels Enable disable channel when writing multiple channels Enable disable channel when writing multiple channels Enable disable channel when writing multiple channels
Table Window View Buttons
BUTTON FUNCTION View multiple-write window (main window) View channel window View channel window View channel window View channel window View channel window View channel window View channel window View channel window View MAX4358 crosspoint switch window
Table Luma (Brightness) Buttons
View parallel port diagnostics window BUTTON LUMA FILL VALUE Transparent fill) Insert fill Insert fill Insert fill Insert fill Insert fill Insert fill Insert fill Insert fill MAX4455 QUAD-PIXEL LUMA NYBBLE
Table Luma (Brightness) Buttons (continued)
BUTTON LUMA FILL VALUE Insert fill Insert fill Insert fill Insert fill Insert fill Insert fill Insert fill MAX4455 QUAD-PIXEL LUMA NYBBLE
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
NOTE: MAX4358 CROSSPOINT SWITCH WINDOW CONTROLS OPTIONAL COMPANION BOARD, WHICH PART MAX4455 SYSTEM. Figure MAX4358 Crosspoint Switch
Table MAX4358 Crosspoint Switch Command Buttons
BUTTON FUNCTION Route MAX4358 inputs 0-15 outputs 0-15 Inhibit video outputs MAX4358 outputs unity gain MAX4358 outputs gain 2V/V Toggle Expert Mode off, enabling access inputs outputs
PAL/SECAM Compatability
When used with SECAM video systems, vertical offset position active portion on-screen display that visible.
Writing Single Channel
single-channel screen includes drawing tools, plus shared memory, vertical horizontal offset, reading on-screen display memory, display inhibit. severely limited bandwidth parallel port, MAX4455 software time-stamp function offered multiple-write screen (see Using Time Stamp section).
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
NOTE: CHARACTER GENERATOR TOOL PLACES ARBITRARY TEXT MESSAGES CHANNEL, USING STANDARD WINDOWS FONT INSTALLED HOST COMPUTER. Figure MAX4455 Character Generator
Table Character Generator Command Buttons
BUTTON FUNCTION Choose which windows font when drawing text Write white text (100 IRE) black background Write light gray text IRE) black background Write dark gray text IRE) black background Write black text IRE) white (100 IRE) background
MAX4358 Crosspoint Switch
MAX4455 designed with MAX4358 crosspoint switch. control MAX4358 (included MAX4455EVSYS), choose MAX4358 crosspoint from view menu (see Figure Each outputs drop-down combo select input signal. Each output also configured unity gain gain 2V/V. setup menu lets quickly disable outputs, quickly connect each output preset input. space limitations, MAX4358 provides connectors only four outputs only four inputs. However, entire chip functional, software allows control channels. When expert mode selected, provides controls inputs outputs, well exposing address controls.
Writing Multiple Channels
main screen's drawing tools draw eight channels on-screen display. Table shows buttons that enable disable each channel. When program starts, channel automatically enabled. main screen diagnostic menu, with global settings related low-level register access. These settings need changed.
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
Character Generator
MAX4455 software generate text labels using standard Windows font installed host computer system. Typical Windows systems usually include Arial, Courier New, Times Roman fonts. font selector button runs standard Windows font selector dialog box, which lets choose from fonts installed your system. text color buttons text foreground color luma values IRE, IRE, IRE, IRE.
Troubleshooting
Problem: display seems flicker Interlaced raster scan appear flicker test patterns that have sharp, single-pixel horizontal lines. Flicker worst small, bright, high-contrast features. Apply digital antialiasing function across test pattern before writing MAX4455. write single-pixel lines; instead, write both field field each NTSC line pair. Problem: software can't read MAX4455 Although MAX4455 works directly with most modern computers, some systems require that parallel port must enabled bidirectional mode BIOS setup screen. must reboot your computer, enter BIOS setup before Windows starts, find integrated peripherals screen, ensure that port configured port. Standard parallel port settings compatible with MAX4455 kit. Problem: switching channels causes display roll MAX4455 inserts video fill during vertical blanking interval, miss vertical sync information. solution BLANK true when switching crosspoint. Once video sync established, BLANK false re-enable video fill. (Refer MAX4455 data sheet more information.)
Detailed Description Hardware
MAX4455 consists MAX4455 arbitrary graphics on-screen display video generator, synchronous dynamic RAM, 3.3V crystal oscillator module, 3.3V linear regulator. Cost-sensitive applications replace crystal oscillator module with 40.5MHz fundamental mode crystal. Resistor sets white video fill. (Refer MAX4455 data sheet white level calculation.) crosspoint outputs sampled through rightangle connector optionally through jacks. Resistor/capacitor networks such C32-C33-R10 sample video signals. Because MAX4455 system uses bidirectional parallel printer cable opposed local microprocessor bus, Schmitt triggers used sharpen rise times read write strobes. These Schmitt trigger buffers located MAX4358 companion board.
Design Considerations
best picture quality, design custom MAX4455 on-screen display system requires careful attention ground return paths. MAX4455 video outputs switch significant amount current into analog ground return. designed two-board accommodate customers using different video crosspoints. However, best results, MAX4455 should located close crosspoint switch. MAX4455 designed interface directly microprocessor. uses parallel port ease evaluation, which recommended production designs. Throughput severely limited, long cable requires Schmitt trigger buffers clean read/write strobes.
OSDFILL0 OSDFILL1 OSDFILL2 OSDFILL3 OSDFILL4 OSDFILL5 OSDFILL6 OSDFILL7 OPEN OPEN MT48LC1M16A1TG-7S 0.1µF VSSQ VDDQ VKEY VCCINT 0.1µF OSDKEY3 OSDKEY2 OSDKEY1 OSDKEY0 DGND DVDD 0.1µF RAS# CAS# VCCINT VCCINT 0.1µF CAS# RAS# 0.1µF VSSQ VDDQ DQML CAS# RAS# DQ13 DQ12 VDDQ DQ11 DQ10 VSSQ VDDQ N.C. DQMH N.C. 0.1µF 0.1µF 0.1µF DQ11 DQ10 VSSQ DQ14 DQ15 DGND XTAL2 XTAL1/SYNC DGND VCCINT VCCINT 0.1µF 0.1µF OSDKEY7 OSDKEY6 OSDKEY5 OSDKEY4 DVDD OSDKEY7 OSDKEY6 OSDKEY5 OSDKEY4 DGND SYNC OPEN DQ15 DQ14 0.1µF OPEN OPEN OPEN OPEN OPEN OPEN V5YNC3 V5YNC4 V5YNC5 V5YNC6 V5YNC7 0.1µF VCCINT VDDA7 OSDFILL2 OSDFILL3 OSDFILL4 OSDFILL5 OSDFILL6 OSDFILL0 OSDFILL1 OSDFILL7 VDDA6 OSDFILL7 0.1µF 0.1µF 0.1µF 0.1µF 0.1µF 0.1µF 0.1µF 0.1µF
V5YNC2
RSET VDDA1 VDDA2 VDDA3 VDDA4 VDDA8 AGND1 VDDA0 OSDFILL2 OSDFILL3 OSDFILL4 OSDFILL5 VDDA5 OSDFILL0 OSDFILL1 OSDFILL6 VIDIN3 VIDIN4 VIDIN5 VIDIN6 VIDIN7
VSYNC1
VIDIN1
VSYNC0
VIDIN0
VIDIN2
0.1µF
DQ13 DQ12 VCCINT
DGND
DVDD
DGND
DVDD
DGND
DVDD
DQ15
DQ14
DQ13
DQ12
DQ11
DQ10
DGND
Figure MAX4455 Schematic (Sheet
VCCINT
ADDR/DATA
ADDR/DATA
MAX4455
OSDKEY1 OSDKEY0 OSDKEY2
OSDKEY3
VCCINT
RDY/BSY
RDY/BSY
VCCINT
0.1µF
DVDD
DGND
NOTE: U1-94 CONNECTS AGNDS TOGETHER BOARD TRACE LAYER VCCINT VCCINT
VCCINT
MAX4455 Evaluation Kit/Evaluation System
Evaluate: MAX4455
0.1µF 0.1µF 0.1µF
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
0.047µF 470pF VSYNC0 0.047µF 470pF VSYNC1 N.C. 0.047µF 470pF VSYNC2 0.047µF 470pF VSYNC3 0.047µF 470pF VSYNC4 0.047µF 470pF VSYNC5 0.047µF 470pF VSYNC6 0.047µF 390µF 6.3V 0.1µF OUT07 470pF VSYNC7 VSYNC7 VCCINT XDSC_40.50MHz 0.1µF SYNC VSYNC6 VCCINT VKEY VSYNC5 VSYNC4 VSYNC3 VSYNC2 VSYNC1 N.C. N.C. VSYNC0 N.C. N.C. J6-26 J6-25 J6-24 J6-23 J6-22 J6-21 J6-20 J6-19 J6-18 J6-17 J6-16 J6-15 J6-14 J6-13 J6-12 J6-11 J6-10 RDY/BSY ADDR/DATA J6-9 J6-8 J6-7 J6-6 J6-5 J6-4 J6-3 J6-2 J6-1
J5-1 J5-3 J5-5 J5-7 J5-9
J5-2 J5-4 J5-6 J5-8 J5-10 J5-12
OUT00 OUT01 OUT02 OUT03 OUT04 OUT05 OUT01 OUT06 OUT07 OUT00
J5-11 J5-13 J5-15 J5-17 J5-19 J5-21 J5-23 J5-25 J5-27 J5-29 J5-31 J5-33
J5-14 J5-16
J5-18 J5-20 J5-22 J5-24 J5-26 J5-28 J5-30 J5-32
OSDFILL0 OSDFILL1 OSDFILL2 OSDFILL3 OSDFILL4 OSDFILL5 OUT03 OSDFILL6 OSDFILL7 OUT02
J5-34 J5-35 J5-37 J5-39 J5-41 J5-36 J5-38 J5-40 J5-42 J5-44 J5-43 J5-45 J5-47 J5-49 J5-50 SHDN 0.1µF VCCINT J5-46 J5-48
OSDKEY0 OSDKEY1 OSDKEY2 OSDKEY3 OSDKEY4 OSDKEY5 OSDKEY6 OSDKEY7 OUT05 OUT04
OUT06
MAX8867
0.01µF 330µF VKEY 330µF
330µF
Figure MAX4455 Schematic (Sheet
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
Figure MAX4455 Component Placement Guide-Component Side
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
Figure MAX4455 Component Placement Guide-Solder Side
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
Figure MAX4455 Board Layout-Component Side
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
Figure MAX4455 Board Layout-Internal Layer
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
Figure MAX4455 Board Layout-Internal Layer
MAX4455 Evaluation Kit/Evaluation System Evaluate: MAX4455
Figure MAX4455 Board Layout-Solder Side
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2002 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.
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