MAX4455EVSYS_技术文档

19-2506; Rev 1; 10/02

MAX4455 Evaluation Kit/Evaluation System

General Description

Features

The MAX4455 evaluation kit (EV kit) is an assembled

and tested circuit board that demonstrates the

MAX4455 arbitrary graphics on-screen display video

ꢀ Character Generation Using Fonts from Host PC

ꢀ Demonstration Software and Test Patterns

®

Included

generator. Windows 98 software provides a handy

user interface to exercise the features of the MAX4455.

(Windows 2000 is supported, but at a severely reduced

data rate.)

ꢀ Proven PC Board Layout

ꢀ Convenient On-Board Test Points

ꢀ Fully Assembled and Tested

Order the complete evaluation system (EV system)

(MAX4455EVSYS) for comprehensive evaluation of the

MAX4455 using a PC and the recommended crosspoint

switch. A bidirectional parallel port is required. Order

the EV kit (MAX4455EVKIT) for use with other user-

defined external solutions.

Ordering Information

PART

TEMP RANGE DESCRIPTION

Windows is a registered trademark of Microsoft Corp.

MAX4455EVSYS

0°C to +70°C Complete system

MAX4455EVSYS Component List

Requires user-supplied

fast mux switch*

MAX4455EVKIT

0°C to +70°C

PART

QTY

DESCRIPTION

8-channel on-screen display

32 × 16 crosspoint switch

*Refer to the MAX4455 data sheet.

MAX4455EVKIT

MAX4358EVKIT

1

EV Kit Component List

DESIGNATION QTY

DESCRIPTION

DESIGNATION QTY

DESCRIPTION

75Ω 1ꢀ ꢁMT resistors (0402)

430Ω 5ꢀ ꢁMT resistors (0402)

6-position terminal blocks

MAX4455ECQ

R2–R9

R10–R17

TB1

8

2

1

C1–C17, C19,

0.1µF 10ꢀ, 10V ceramic capacitors

(0402)

C21, C22,

C24–C29, C31,

28

C48

U1

330µF 20ꢀ, 10V low-EꢁR

capacitors (case R)

Dynamic RAM

Micron MT48LC1M16A1TG-7ꢁ

C23, C30, C57

3

U2

U3

1

390µF 20ꢀ, 6.3V low-EꢁR

capacitor (case R)

MAX8867EUK33

C18

C20

1

Full-size crystal oscillator

ICM International Crystal

Manufacturing Corp., Inc.

Catalog IT1100Fꢁꢁ, custom

40.5MHz, 3.3VDC

0.01µF ceramic capacitor (1206)

U4

1

C32, C35, C36,

C39, C40, C43,

C44, C47

470pF 10ꢀ, 50V ceramic

capacitors (0402)

8

U4, Y1

8

ꢁocket pins

C33, C34, C37,

C38, C41, C42,

C45, C46

0.047µF 10ꢀ, 10V ceramic

capacitors (0402)

VꢁYNC0–

VꢁYNC7

BNC female jacks

Y1

0

1

Leave open

C49–C56

J5

0

1

0

1

Leave open

None

PC board

2 × 25 right-angle header

2 × 13 right-angle header

Leave open

MAX4455 EV kit software CD-ROM

MAX4455 data sheet

MAX4455 EV kit data sheet

J6

JU1–JU8

JU9

2-pin jumper

DB25 IDC plug connector with 6ft

ribbon cable

Digi-Key M7PXG-2ꢁO6J or equivalent

JU9

ꢁhunt

None

1

10kΩ 1ꢀ resistor

(1/4W axial leaded)

R1

1

________________________________________________________________ Maxim Integrated Products

1

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

MAX4455 Evaluation Kit/Evaluation System

12) Confirm that the on-screen display is working by

Quick Start

Recommended Equipment

Before you begin, the following equipment is needed:

selecting the text tool ( ) and then clicking in the

middle of the large blue display control area. The

Character Generator dialog box pops up. Click OK to

copy the text to the on-screen display memory. Both

the computer and the video monitor should show the

key/fill text. Note: The parallel port interface

bandwidth severely limits the graphics transfer

rate between the MAX4455 and the host PC.

• Dual-output DC power supply, 5V at 500mA

• Computer running Windows 98/2000, with a bidirec-

tional or ECP parallel port

• Video signal sources (such as cameras)

• Video monitor(s)

Table 1. MAX4455 EV System Power

Connections

• MAX4455 EV kit

• MAX4358 EV kit

MAX4455

REQUIRED POWER SUPPLY

TB1 TERMINAL

• 25-pin I/O extension cable (included in EV kit)

Procedure

1) Carefully connect the boards by aligning the two right-

angle headers of the MAX4455 EV kit with the corre-

sponding headers of the MAX4358 EV kit. Gently

press them together. The two boards should be flush

against one another.

Leave unconnected. ꢁupplied by on-

board linear regulator.

+3.3V

DGND

VKEY

Digital ground return.

OꢁDFILL power. Connect to +5V supply.

AGND

VCC

Analog ground return.

2) With the power supply off, connect the power supply to

the MAX4358 EV kit terminal block TB1 (see Table 1).

Main power. Connect to +5V supply.

Host power. Connect to +5V supply.

VH1

3) With the power supply off, connect the power supply to

the MAX4455 EV kit terminal block TB1 (see Table 1).

MAX4358

TB1 TERMINAL

REQUIRED POWER SUPPLY

4) Install the EV system software on your computer by

running the INꢁTALL.EXE program on the CD-ROM.

The program files are copied and icons are created

for them in the Windows ꢁtart menu. Note: Windows

2000 requires an extra installation step; refer to file

win2000.pdf.

VCC

AGND

VEE

Connect to +5V supply.

Analog ground return.

Connect to -5V supply.

Digital ground return.

Connect to +5V supply.

DGND

VDD

5) Ensure that the MAX4358 jumpers JU1–JU4 are open.

6) Turn on the power supply.

Detailed Description

of Software

7) Connect the 25-pin I/O extension cable between the

computer’s parallel port and the MAX4358 EV kit. The

MAX4358 EV kit includes a suitable 25-pin I/O exten-

sion cable. ꢁnap on the included ferrite bead to

reduce PC-generated noise from affecting the video

boards.

The MAX4455 EV kit software is a simple but effective

paint program that draws on the on-screen display

memory. There are nine drawing windows: one for each

of the eight on-screen display channels, and a master

window for simultaneously writing multiple channels.

The large blue area represents the on-screen display

memory. Each pixel in this area corresponds to one

pixel in the on-screen display memory. Transparent

areas are blue. The OꢁDKEY signal is automatically

generated for any pixel that is not transparent. The soft-

ware implements a few simple tools for drawing lines,

boxes, and text. User-generated graphics can be

loaded from standard Windows bitmap files, and the

contents of the on-screen display can be saved to a

standard Windows bitmap file. Tables 2–10 describe

the buttons found on various toolbars.

8) ꢁtart the program by opening its icon in the ꢁtart

menu.

9) Connect video signal sources to IN00...IN03 on the

MAX4358 EV kit.

10 Connect video displays to OUT00...OUT03 on the

MAX4358 EV kit.

11) Confirm that the software successfully connected

video source IN00 to video monitor OUT00. The video

signal should be visible on the monitor.

2

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MAX4455 Evaluation Kit/Evaluation System

Loading and Saving Files

The MAX4455 on-screen display uses 15-level

grayscale patterns. When the MAX4455 EV kit software

saves an image as a windows bitmap, each pixel of the

on-screen display image is converted from 15-level

grayscale into an equivalent RGB value:

Creating Test Patterns

ꢁimple brightness-gradient test patterns can be drawn

interactively using the horizontal or vertical luma bar

drawing tool. Click the desired tool button ( or ),

and then drag the mouse across the opposite corners

of the desired region. The white bar is always drawn

near where the mouse is first clicked. All 15 grayscale

levels are drawn, and one additional transparent bar is

drawn just after the black bar.

osd_value &= 0x0F;

if (osd_value == 0) {

unsigned __int8 red

= 0;

unsigned __int8 green = 0;

unsigned __int8 blue = 255;

Custom test patterns can be created using any paint

program that can read and write Windows bitmap files.

Always start with a pure saturated blue background

(RGB value of red = 0, green = 0, blue = 255) for a

transparent background.

} else {

unsigned __int8 greyscale_nybble =

osd_value + 1;

double luma = (greyscale_nybble *

256.0 / 16.0);

Capture any program’s output by pressing ALT+

PrintScreen, then paste into the Windows Paint pro-

gram and save as a bitmap. For example:

if (luma > 255.0) { luma = 255.0; }

if (luma < 0) { luma = 0; }

unsigned __int8 red

= luma;

1) Run the MAX4455 EV kit software.

2) Click the View Channel 0 button ( ).

unsigned __int8 green = luma;

unsigned __int8 blue = luma;

}

3) Draw some luma bars ( or ) to use as a drawing

palette (optional).

color =((blue * 0x10000) | (green * 0x100) |

(red));

4) Locate your monitor’s overscan boundary by point-

ing the camera at a black field, choose a contrast-

ing drawing color ( ), select the free-hand

drawing tool ( ), and drag the mouse around the

edges of the on-screen display (optional).

When the MAX4455 EV kit software loads a Windows

bitmap image, each pixel of the image is converted

from RGB into an equivalent brightness (luma) value, in

accordance with the following equation:

5) Click the ꢁave All button ( ), saving the empty on-

screen display memory.

Luma = (0.299 x Red) + (0.587 x Green) +

(0.114 x Blue)

6) Edit the saved bitmap using any suitable paint program.

The MAX4455 EV kit software uses pure saturated blue

(RGB value of red = 0, green = 0, blue = 255) to desig-

nate transparent pixels.

7) Load your newly created test pattern using the

Load All button ( ). The test pattern is copied into

the on-screen display memory.

Example code: converting RGB value into MAX4455

on-screen display control nybble:

Using Shared Memory

The MAX4455 can insert a horizontal band of on-screen

display information from a different channel. This exam-

ple draws vertical bars on channel 0 and horizontal

bars on channel 2, then shares part of the channel 0

memory into the channel 2 display.

const double ar = 0.299, ag =

0.587, ab = 0.114, offset = 0;

double luma = ar x red + ag x

green + ab x blue + offset;

unsigned __int8 greyscale_nybble =

((luma * 16.0) / 256) + 0.5;

1) Click the View Channel 0 button ( ).

2) Maximize the window.

if (greyscale_nybble > 15+1) {

greyscale_nybble = 15+1; }

3) Click the Vertical luma bars ( ) drawing tool, and

drag the mouse from the upper-left corner of the

drawing area to the lower-right corner of the draw-

ing area. (Once drawing begins, minimize the win-

dow to improve drawing speed.)

if (greyscale_nybble < 1+1) {

greyscale_nybble = 1+1; }

osd_control_value = greyscale_nyb

ble - 1;

4) Click the View Channel 2 button ( ).

5) Maximize the window.

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3

MAX4455 Evaluation Kit/Evaluation System

On the host PC, the software displays a colored rectan-

6) Click the Horizontal luma bars ( ) drawing tool,

gle indicating the band of shared memory. The monitor

and drag the mouse from the upper-left corner of

displays the horizontal bars test pattern, replacing the

the drawing area to the lower-right corner of the

shared memory band with the vertical bars pattern from

drawing area.

channel 0.

7) Click the ꢁhared Memory from Channel 0/1 button ( ).

8) Click the Define ꢁhared Memory button ( ), and

drag the mouse from the top of one of the bars to

the bottom of the same bar.

9) View the video display connected to OUT02.

NOTE: EACH ꢁINGLE-CHANNEL ꢁCREEN PROVIDEꢁ DRAWING TOOLꢁ, A LUMA VALUEꢁ PALETTE, AND A TIME ꢁTAMP.

Figure 1. MAX4455 Single-Channel Write

4

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MAX4455 Evaluation Kit/Evaluation System

6) Define the top and bottom of the shared memory

band by dragging the mouse from the top NTꢁC

line of the time stamp to the bottom NTꢁC line of the

time stamp.

Using the Time Stamp

1) Click the View Channel 0 button ( ).

2) Enable the software time stamp by clicking the

Time ꢁtamp button ( ).

7) Click the ꢁhared Memory from Channel 0/1 button ( ).

3) Click the Query button ( ), and move the mouse

cursor to locate the top and bottom NTꢁC lines of

the time stamp.

The parallel port interface bandwidth severely limits the

graphics transfer rate between the MAX4455 and the

host PC.

4) Click the View Channel 2 button ( ).

5) Click the Define ꢁhared Memory button ( ).

NOTE: ꢁINGLE-CHANNEL WRITE IN EXPERT MODE PROVIDEꢁ DIRECT ACCEꢁꢁ TO THE CHANNEL REGIꢁTERꢁ.

Figure 2. MAX4455 Single-Channel Write—Expert Mode

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5

MAX4455 Evaluation Kit/Evaluation System

NOTE: THE MAIN ꢁCREEN PROVIDEꢁ MULTIPLE-CHANNEL WRITE TOOLꢁ AND REGIꢁTERꢁ.

Figure 3. MAX4455 Multiple Channel Write

set up a write operation and control the exact moment

when the register is updated. For example, you can

type “150” into the VOFFꢁET edit field, and then click

the VOFFꢁET ꢁET button to perform the write.

Low-Level Register Access

The MAX4455 registers can be accessed directly in

expert mode, which is enabled by clicking the Expert

Mode button ( ) (see Table 2).

Normally, the user interface automatically writes to

affected registers as soon as a control is changed. If

you check “postpone automatic updates,” you can

6

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MAX4455 Evaluation Kit/Evaluation System

NOTE: MULTIPLE CHANNEL WRITE IN EXPERT MODE PROVIDEꢁ DIRECT ACCEꢁꢁ TO THE MULTIPLE-CHANNEL REGIꢁTERꢁ.

Figure 4. MAX4455 Multiple Channel Write—Expert Mode

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7

MAX4455 Evaluation Kit/Evaluation System

Table 2. Command Buttons

Table 3. Drawing Tool Buttons

BUTTON

FUNCTION

BUTTON

FUNCTION

Read the luma fill value stored at the selected line

and column

Load bitmap file into on-screen display memory

Freehand drawing single-pixel points by dragging

the mouse

ꢁave on-screen display memory to a bitmap file

Decrease vertical offset, moving the on-screen

display overlay up

Freehand drawing whole quad-pixel groups by

dragging the mouse

Increase vertical offset, moving the on-screen

display overlay down

Draw an open rectangle by dragging the mouse

across the opposite corners of the desired region

Decrease horizontal offset, moving the on-screen

display overlay to the left

Draw a rectangle filled with the selected

luminance value by dragging the mouse across

the opposite corners of the desired region

Increase horizontal offset, moving the on-screen

display overlay to the right

Inhibit the fill video insertion. Pass video signals

with no on-screen display.

Draw a rectangle filled with horizontal bars of

varying luminance by dragging the mouse across

the opposite corners of the desired region

Toggle Expert Mode on and off, enabling direct

access to the MAX4455 registers

Erase the on-screen display memory

Display the help file

Draw a rectangle filled with vertical bars of

varying luminance by dragging the mouse across

the opposite corners of the desired region

Place text where the mouse was clicked. This

button runs the character generator dialog box to

select font and insert text.

Load a bitmap file into the on-screen display

memory. The upper-left corner of the bitmap is

placed where the mouse was clicked.

Table 4. Shared Memory Tool Buttons

BUTTON

FUNCTION

Read a portion of the on-screen display memory

into the host by dragging the mouse across the

opposite corners of the desired region

Define the top and bottom of the shared memory

band by dragging the mouse across the opposite

corners of the desired region

Table 5. Time Stamp Buttons

ꢁelect channel 0 or 1 as the source of the shared

memory

BUTTON

FUNCTION

ꢁelect channel 2 or 3 as the source of the shared

memory

Place the time stamp where the mouse was

clicked

ꢁelect channel 4 or 5 as the source of the shared

memory

Enable or disable the time stamp

ꢁelect channel 6 or 7 as the source of the shared

memory

Enable or disable the date stamp

Disable shared memory

ꢁelect the font to use for the time/date stamp

8

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MAX4455 Evaluation Kit/Evaluation System

Table 6. Multiple Write Buttons

Table 7. Window View Buttons

BUTTON

FUNCTION

BUTTON

FUNCTION

Enable or disable channel 0 when writing

multiple channels

View multiple-write window (main window)

Enable or disable channel 1 when writing

multiple channels

View the channel 0 window

Enable or disable channel 2 when writing

multiple channels

View the channel 1 window

Enable or disable channel 3 when writing

multiple channels

View the channel 2 window

Enable or disable channel 4 when writing

multiple channels

View the channel 3 window

Enable or disable channel 5 when writing

multiple channels

View the channel 4 window

Enable or disable channel 6 when writing

multiple channels

View the channel 5 window

Enable or disable channel 7 when writing

multiple channels

View the channel 6 window

View the channel 7 window

View the MAX4358 crosspoint switch window

View the parallel port diagnostics window

Table 8. Luma (Brightness) Buttons

MAX4455 QUAD-PIXEL

LUMA NYBBLE

BUTTON

LUMA FILL VALUE

Transparent (no fill)

Insert 7 IRE fill

Table 8. Luma (Brightness) Buttons

(continued)

0

1

2

3

4

5

6

7

8

MAX4455 QUAD-PIXEL

LUMA NYBBLE

BUTTON

LUMA FILL VALUE

Insert 60 IRE fill

Insert 67 IRE fill

Insert 74 IRE fill

Insert 80 IRE fill

Insert 87 IRE fill

Insert 94 IRE fill

Insert 100 IRE fill

9

Insert 14 IRE fill

Insert 21 IRE fill

Insert 27 IRE fill

Insert 34 IRE fill

Insert 41 IRE fill

Insert 47 IRE fill

Insert 54 IRE fill

10

11

12

13

14

15

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9

MAX4455 Evaluation Kit/Evaluation System

NOTE: THE MAX4358 CROꢁꢁPOINT ꢁWITCH WINDOW CONTROLꢁ THE OPTIONAL COMPANION BOARD, WHICH Iꢁ PART OF

THE MAX4455 EV ꢁYꢁTEM.

Figure 5. MAX4358 Crosspoint Switch

Table 9. MAX4358 Crosspoint Switch

Command Buttons

PAL/SECAM Compatability

When used with PAL or ꢁECAM video systems, use the

vertical offset (

) to position the active portion of the

on-screen display so that it is visible.

BUTTON

FUNCTION

Route MAX4358 inputs 0–15 to outputs 0–15

Writing a Single Channel

The single-channel screen includes the drawing tools,

plus shared memory, vertical and horizontal offset,

reading on-screen display memory, and display inhibit.

Due to the severely limited bandwidth of the parallel

port, the MAX4455 EV kit software time-stamp function

is not offered for the multiple-write screen (see the

Using the Time Stamp section).

Inhibit all video outputs

ꢁet all MAX4358 outputs to unity gain

ꢁet all MAX4358 outputs to a gain of 2V/V

Toggle Expert Mode on and off, enabling access

to all 32 inputs and all 16 outputs

10 ______________________________________________________________________________________

MAX4455 Evaluation Kit/Evaluation System

NOTE: THE CHARACTER GENERATOR TOOL PLACEꢁ ARBITRARY TEXT MEꢁꢁAGEꢁ ON ANY CHANNEL, UꢁING ANY

ꢁTANDARD WINDOWꢁ FONT INꢁTALLED ON THE HOꢁT COMPUTER.

Figure 6. MAX4455 Character Generator

MAX4358 Crosspoint Switch

The MAX4455 EV kit is designed for use with the

MAX4358 crosspoint switch. To control the MAX4358 EV

kit (included in the MAX4455EVꢁYꢁ), choose the

MAX4358 crosspoint from the view menu (see Figure 5).

Table 10. Character Generator Command

Buttons

BUTTON

FUNCTION

Choose which windows font to use when drawing

text

Each of the outputs has a drop-down combo box to

select an input signal. Each output can also be config-

ured for unity gain or a gain of 2V/V. The setup menu

lets you quickly disable all outputs, or quickly connect

each output to a preset input.

Write white text (100 IRE) on a black background

Write light gray text (74 IRE) on a black

background

Due to space limitations, the MAX4358 EV kit provides

BNC connectors for only four of its 16 outputs and only

four of its 32 inputs. However, the entire chip is func-

tional, and the software allows control of all channels.

When expert mode is selected, the GUI provides con-

trols for all inputs and outputs, as well as exposing the

IC address pin controls.

Write dark gray text (47 IRE) on a black

background

Write black text (0 IRE) on a white (100 IRE)

background

Writing Multiple Channels

The main screen’s drawing tools can draw on all eight

channels of the on-screen display. Table 6 shows the

buttons that enable or disable each channel. When the

program starts, channel 0 is automatically enabled. The

main screen has a diagnostic menu, with global set-

tings related to low-level register access. These set-

tings do not need to be changed.

______________________________________________________________________________________ 11

MAX4455 Evaluation Kit/Evaluation System

Character Generator

Troubleshooting

The MAX4455 EV kit software can generate text labels

using any standard Windows font installed on the host

computer system. Typical Windows systems usually

include Arial, Courier New, and Times New Roman

fonts.

Problem: display seems to flicker

Interlaced raster scan can appear to flicker for test patterns

that have sharp, single-pixel horizontal lines. Flicker is worst

on small, bright, high-contrast features. Apply a digital anti-

aliasing function across the test pattern before writing it to

the MAX4455. Do not write single-pixel lines; instead, write

both field 1 and field 2 of each NTꢁC line pair.

The font selector button runs the standard Windows

font selector dialog box, which lets you choose from

any of the fonts installed on your system.

Problem: software can’t read MAX4455 EV kit

The text color buttons set the text foreground color to

luma values of 100 IRE, 74 IRE, 47 IRE, or 0 IRE.

Although the MAX4455 EV kit works directly with most

modern computers, some systems require that the paral-

lel port must be enabled for bidirectional mode in the

BIOꢁ setup screen. You must reboot your computer,

enter BIOꢁ setup before Windows starts, find the integrat-

ed peripherals screen, and ensure that the LPT port is

configured as an ECP port. ꢁtandard and EPP parallel

port settings are not compatible with the MAX4455 EV kit.

Detailed Description

of Hardware

The MAX4455 EV kit consists of a MAX4455 arbitrary

graphics on-screen display video generator, a

synchronous dynamic RAM, a 3.3V crystal oscillator

module, and a 3.3V linear regulator. Cost-sensitive

applications can replace the crystal oscillator module

with a 40.5MHz fundamental mode crystal. Resistor R1

sets the white video fill. (Refer to the MAX4455 data

sheet for white level calculation.)

Problem: switching channels causes the display to roll

If the MAX4455 inserts video fill during the vertical blank-

ing interval, it can miss the vertical sync information. The

solution is to set the BLANK bit true when switching the

crosspoint. Once video sync is established, set the

BLANK bit false to re-enable the video fill. (Refer to the

MAX4455 data sheet for more information.)

The crosspoint outputs are sampled through the right-

angle connector J5, or can optionally be fed through

the BNC jacks. Resistor/capacitor networks such as

C32-C33-R10 sample the video signals.

Because the MAX4455 EV system uses a bidirectional

parallel printer cable as opposed to a local microproces-

sor bus, ꢁchmitt triggers are used to sharpen the rise

times of the read and write strobes. These ꢁchmitt trigger

buffers are located on the MAX4358 EV kit companion

board.

Design Considerations

For best picture quality, the design of a custom

MAX4455 on-screen display system requires careful

attention to the ground return paths. The MAX4455

video outputs switch a significant amount of current into

the analog ground return.

The EV kit is designed as a two-board set to accommo-

date customers using different video crosspoints.

However, for best results, the MAX4455 should be

located close to the crosspoint switch.

The MAX4455 is designed to interface directly to a

microprocessor. The EV kit uses the parallel port for

ease of evaluation, which is not recommended for pro-

duction designs. Throughput is severely limited, and

the long cable requires ꢁchmitt trigger buffers to clean

up the read/write strobes.

12 ______________________________________________________________________________________

MAX4455 Evaluation Kit/Evaluation System

O S D F I L L 7

O S D F I L L 6

O S D F I L L 5

O S D F I L L 4

O S D F I L L 3

O S D F I L L 2

O S D F I L L 1

O S D F I L L 0

D G N D

D V

V D D A 7

O S D F I L L 7

V D D A 6

O S D F I L L 6

V D D A 5

O S D F I L L 5

V D D A 4

O S D F I L L 4

V D D A 3

O S D F I L L 3

V D D A 2

O S D F I L L 2

V D D A 1

O S D F I L L 1

V D D A 0

O S D F I L L 0

V D D A 8

R S E T

O S D F I L L 7

D D

W E

W E #

A 4

O S D F I L L 6

O S D F I L L 5

A 4

A 5

A 6

A 7

A 8

A 6

A 7

O S D F I L L 4

O S D F I L L 3

O S D F I L L 2

O S D F I L L 1

O S D F I L L 0

A 8

D G N D

D V

D D

A 9

C L K

D Q M

D 8

C L K

D Q M

D Q 8

D 9

D Q 9

D 1 0

D 1 1

D G N D

D V

D Q 1 0

D Q 1 1

D D

A G N D 1

V I D I N 7

V I D I N 6

V I D I N 5

V I D I N 4

V I D I N 3

V I D I N 2

V 5 Y N C 7

V 5 Y N C 6

V 5 Y N C 5

V 5 Y N C 4

V 5 Y N C 3

V 5 Y N C 2

D 1 2

D 1 3

D 1 4

D 1 5

D 7

D Q 1 2

D Q 1 3

D Q 1 4

D Q 1 5

D Q 7

D 6

D Q 6

Figure 7. MAX4455 EV Kit Schematic (Sheet 1 of 2)

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MAX4455 Evaluation Kit/Evaluation System

C33

0.047µF

VSYNC0

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

J6-9

C32

470pF

R10

J5-1

J5-3

J5-5

J5-7

J5-9

J5-2

J5-4

OUT00

OUT01

OUT02

OUT03

OUT04

OUT05

OUT06

OUT07

430Ω

VSYNC0

JU1

OUT00

OUT01

OUT02

OUT03

N.C.

C34

J5-6

0.047µF

J5-8

VSYNC1

VSYNC2

C35

470pF

J5-10

J5-12

J5-14

J5-16

R11

430Ω

JU2

VSYNC1

J5-11

J5-13

J5-15

J5-17

J5-19

J5-21

J5-23

J5-25

J5-27

J5-29

J5-31

J5-33

C37

0.047µF

HD7

HD6

HD5

HD4

C36

470pF

R12

430Ω

JU3

J5-18

J5-20

J5-22

J5-24

J5-26

J5-28

J5-30

J5-32

OSDFILL0

OSDFILL1

OSDFILL2

OSDFILL3

OSDFILL4

OSDFILL5

OSDFILL6

OSDFILL7

VSYNC2

C38

0.047µF

VSYNC3

VSYNC4

C39

470pF

R13

430Ω

JU4

VSYNC3

C41

0.047µF

HD3

CS

J6-8

C40

470pF

R14

HD2

J6-7

J5-34

J5-36

J5-38

J5-40

J5-42

J5-44

J5-46

J5-48

OSDKEY0

OSDKEY1

OSDKEY2

OSDKEY3

OSDKEY4

OSDKEY5

OSDKEY6

OSDKEY7

430Ω

VSYNC4

J5-35

J5-37

J5-39

J5-41

JU5

RD

J6-6

OUT04

OUT05

OUT06

OUT07

HD1

J6-5

C42

0.047µF

RDY/BSY

HDD

J6-4

VSYNC5

VSYNC6

C43

470pF

J6-3

R15

430Ω

JU6

ADDR/DATA

WR

J6-2

VSYNC5

J5-43

J5-45

J5-47

J5-49

J5-50

J6-1

C45

0.047µF

VCCINT VKEY VCC VH1

C44

470pF

R16

430Ω

JU7

1

2

3

4

5

6

VSYNC6

VCCINT

VCC

C46

0.047µF

TB1

4

1

OUT

SHDN

U3

VSYNC7

C47

470pF

C18

390µF

R17

430Ω

JU8

3

5

U4

VCCINT

XDSC_40.50MHz

MAX8867

IN

6.3V

C19

0.1µF

VSYNC7

C21

0.1µF

6

4

2

SYNC

V+

D

BP

GND

C22

0.1µF

GND

3

C20

0.01µF

VCC

VKEY

VH1

JU9

C23

C30

330µF

10V

C57

330µF

10V

Figure 7. MAX4455 EV Kit Schematic (Sheet 2 of 2)

14 ______________________________________________________________________________________

MAX4455 Evaluation Kit/Evaluation System

Figure 8. MAX4455 EV Kit Component Placement Guide—Component Side

______________________________________________________________________________________ 15

MAX4455 Evaluation Kit/Evaluation System

Figure 9. MAX4455 EV Kit Component Placement Guide—Solder Side

16 ______________________________________________________________________________________

MAX4455 Evaluation Kit/Evaluation System

Figure 10. MAX4455 EV Kit PC Board Layout—Component Side

______________________________________________________________________________________ 17

MAX4455 Evaluation Kit/Evaluation System

Figure 11. MAX4455 EV Kit PC Board Layout—Internal Layer 2

18 ______________________________________________________________________________________

MAX4455 Evaluation Kit/Evaluation System

Figure 12. MAX4455 EV Kit PC Board Layout—Internal Layer 3

______________________________________________________________________________________ 19

MAX4455 Evaluation Kit/Evaluation System

Figure 13. MAX4455 EV Kit PC Board Layout—Solder Side

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

Printed UꢁA

is a registered trademark of Maxim Integrated Products.


型号：	MAX4455EVSYS
厂家：	MAXIM INTEGRATED PRODUCTS
描述：	Evaluation Kit/Evaluation System for the MAX4455 评估板/评估系统MAX4455\n
文件：	总20页 (文件大小：579K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MAX4455EVSYS [MAXIM]

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