19-2506; Rev 1; 10/02
MAX4455 Evaluation Kit/Evaluation System
Features
♦ Character Generation Using Fonts from Host PC
♦ Demonstration Software and Test Patterns
Included
♦ Proven PC Board Layout
♦ Convenient On-Board Test Points
♦ Fully Assembled and Tested
Ordering Information
PART
Windows is a registered trademark of Microsoft Corp.
MAX4455EVSYS Component List
PART
QTY
MAX4455EVKIT
1
8-channel on-screen display
MAX4358EVKIT
1
32 × 16 crosspoint switch
TEMP RANGE DESCRIPTION
MAX4455EVSYS
0°C to +70°C
Complete system
MAX4455EVKIT
0°C to +70°C
Requires user-supplied
fast mux switch*
DESCRIPTION
*Refer to the MAX4455 data sheet.
EV Kit Component List
DESIGNATION
C1–C17, C19,
C21, C22,
C24–C29, C31,
C48
QTY
28
DESCRIPTION
0.1µF ±10%, 10V ceramic capacitors
(0402)
C23, C30, C57
3
330µF ±20%, 10V low-ESR
capacitors (case R)
C18
1
390µF ±20%, 6.3V low-ESR
capacitor (case R)
C20
1
0.01µF ceramic capacitor (1206)
8
470pF ±10%, 50V ceramic
capacitors (0402)
C33, C34, C37,
C38, C41, C42,
C45, C46
8
0.047µF ±10%, 10V ceramic
capacitors (0402)
C49–C56
0
Leave open
J5
1
2 × 25 right-angle header
C32, C35, C36,
C39, C40, C43,
C44, C47
J6
JU1–JU8
1
0
2 × 13 right-angle header
Leave open
JU9
1
2-pin jumper
JU9
1
Shunt
R1
1
10kΩ ±1% resistor
(1/4W axial leaded)
DESIGNATION
QTY
R2–R9
8
75Ω ±1% SMT resistors (0402)
DESCRIPTION
R10–R17
8
430Ω ±5% SMT resistors (0402)
TB1
2
6-position terminal blocks
U1
1
MAX4455ECQ
U2
1
Dynamic RAM
Micron MT48LC1M16A1TG-7S
U3
1
MAX8867EUK33
U4
1
Full-size crystal oscillator
ICM International Crystal
Manufacturing Corp., Inc.
Catalog IT1100FSS, custom
40.5MHz, 3.3VDC
U4, Y1
8
Socket pins
VSYNC0–
VSYNC7
8
BNC female jacks
Y1
0
Leave open
None
1
PC board
None
1
MAX4455 EV kit software CD-ROM
None
1
MAX4455 data sheet
None
1
MAX4455 EV kit data sheet
None
1
DB25 IDC plug connector with 6ft
ribbon cable
Digi-Key M7PXG-2SO6J or equivalent
________________________________________________________________ Maxim Integrated Products
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.
1
Evaluate: MAX4455
General Description
The MAX4455 evaluation kit (EV kit) is an assembled
and tested circuit board that demonstrates the
MAX4455 arbitrary graphics on-screen display video
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.)
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 userdefined external solutions.
Evaluate: MAX4455
MAX4455 Evaluation Kit/Evaluation System
Quick Start
Recommended Equipment
Before you begin, the following equipment is needed:
• Dual-output DC power supply, ±5V at 500mA
• Computer running Windows 98/2000, with a bidirectional or ECP parallel port
• Video signal sources (such as cameras)
• Video monitor(s)
12) Confirm that the on-screen display is working by
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.
Table 1. MAX4455 EV System Power
Connections
• MAX4455 EV kit
• MAX4358 EV kit
• 25-pin I/O extension cable (included in EV kit)
Procedure
MAX4455
TB1 TERMINAL
REQUIRED POWER SUPPLY
+3.3V
Leave unconnected. Supplied by onboard linear regulator.
DGND
Digital ground return.
VKEY
OSDFILL power. Connect to +5V supply.
2) With the power supply off, connect the power supply to
the MAX4358 EV kit terminal block TB1 (see Table 1).
AGND
Analog ground return.
VCC
Main power. Connect to +5V supply.
3) With the power supply off, connect the power supply to
the MAX4455 EV kit terminal block TB1 (see Table 1).
VH1
Host power. Connect to +5V supply.
1) Carefully connect the boards by aligning the two rightangle headers of the MAX4455 EV kit with the corresponding headers of the MAX4358 EV kit. Gently
press them together. The two boards should be flush
against one another.
4) Install the EV system software on your computer by
running the INSTALL.EXE program on the CD-ROM.
The program files are copied and icons are created
for them in the Windows Start menu. Note: Windows
2000 requires an extra installation step; refer to file
win2000.pdf.
5) Ensure that the MAX4358 jumpers JU1–JU4 are open.
MAX4358
TB1 TERMINAL
VCC
REQUIRED POWER SUPPLY
Connect to +5V supply.
AGND
Analog ground return.
VEE
Connect to -5V supply.
DGND
VDD
Digital ground return.
Connect to +5V supply.
6) Turn on the power supply.
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 extension cable. Snap on the included ferrite bead to
reduce PC-generated noise from affecting the video
boards.
8) Start the program by opening its icon in the Start
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
Detailed Description
of Software
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 OSDKEY signal is automatically
generated for any pixel that is not transparent. The software 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.
_______________________________________________________________________________________
MAX4455 Evaluation Kit/Evaluation System
Creating Test Patterns
Simple 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.
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.
Capture any program’s output by pressing ALT+
PrintScreen, then paste into the Windows Paint program and save as a bitmap. For example:
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:
Luma = (0.299 x Red) + (0.587 x Green) +
(0.114 x Blue)
The MAX4455 EV kit software uses pure saturated blue
(RGB value of red = 0, green = 0, blue = 255) to designate transparent pixels.
Example code: converting RGB value into MAX4455
on-screen display control nybble:
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;
if (greyscale_nybble > 15+1) {
greyscale_nybble = 15+1; }
if (greyscale_nybble < 1+1) {
greyscale_nybble = 1+1; }
osd_control_value = greyscale_nyb
ble - 1;
1) Run the MAX4455 EV kit software.
2) Click the View Channel 0 button (
3) Draw some luma bars (
palette (optional).
or
).
) to use as a drawing
4) Locate your monitor’s overscan boundary by pointing the camera at a black field, choose a contrasting drawing color ( ), select the free-hand
drawing tool ( ), and drag the mouse around the
edges of the on-screen display (optional).
5) Click the Save All button (
screen display memory.
), saving the empty on-
6) Edit the saved bitmap using any suitable paint program.
7) Load your newly created test pattern using the
Load All button ( ). The test pattern is copied into
the on-screen display memory.
Using Shared Memory
The MAX4455 can insert a horizontal band of on-screen
display information from a different channel. This example 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.
1) Click the View Channel 0 button ( ).
2) Maximize the window.
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 drawing area. (Once drawing begins, minimize the window to improve drawing speed.)
4) Click the View Channel 2 button (
).
5) Maximize the window.
_______________________________________________________________________________________
3
Evaluate: MAX4455
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:
osd_value &= 0x0F;
if (osd_value == 0) {
unsigned __int8 red
= 0;
unsigned __int8 green = 0;
unsigned __int8 blue = 255;
} else {
unsigned __int8 greyscale_nybble =
osd_value + 1;
double luma = (greyscale_nybble *
256.0 / 16.0);
if (luma > 255.0) { luma = 255.0; }
if (luma < 0) { luma = 0; }
unsigned __int8 red
= luma;
unsigned __int8 green = luma;
unsigned __int8 blue = luma;
}
color =((blue * 0x10000) | (green * 0x100) |
(red));
Evaluate: MAX4455
MAX4455 Evaluation Kit/Evaluation System
6) Click the Horizontal luma bars ( ) drawing tool,
and drag the mouse from the upper-left corner of
the drawing area to the lower-right corner of the
drawing area.
7) Click the Shared Memory from Channel 0/1 button (
).
On the host PC, the software displays a colored rectangle indicating the band of shared memory. The monitor
displays the horizontal bars test pattern, replacing the
shared memory band with the vertical bars pattern from
channel 0.
8) Click the Define Shared 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 SINGLE-CHANNEL SCREEN PROVIDES DRAWING TOOLS, A LUMA VALUES PALETTE, AND A TIME STAMP.
Figure 1. MAX4455 Single-Channel Write
4
_______________________________________________________________________________________
MAX4455 Evaluation Kit/Evaluation System
).
2) Enable the software time stamp by clicking the
Time Stamp button ( ).
3) Click the Query button ( ), and move the mouse
cursor to locate the top and bottom NTSC lines of
the time stamp.
4) Click the View Channel 2 button (
).
5) Click the Define Shared Memory button (
6) Define the top and bottom of the shared memory
band by dragging the mouse from the top NTSC
line of the time stamp to the bottom NTSC line of the
time stamp.
7) Click the Shared Memory from Channel 0/1 button (
).
The parallel port interface bandwidth severely limits the
graphics transfer rate between the MAX4455 and the
host PC.
).
NOTE: SINGLE-CHANNEL WRITE IN EXPERT MODE PROVIDES DIRECT ACCESS TO THE CHANNEL REGISTERS.
Figure 2. MAX4455 Single-Channel Write—Expert Mode
_______________________________________________________________________________________
5
Evaluate: MAX4455
Using the Time Stamp
1) Click the View Channel 0 button (
Evaluate: MAX4455
MAX4455 Evaluation Kit/Evaluation System
NOTE: THE MAIN SCREEN PROVIDES MULTIPLE-CHANNEL WRITE TOOLS AND REGISTERS.
Figure 3. MAX4455 Multiple Channel 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).
set up a write operation and control the exact moment
when the register is updated. For example, you can
type “150” into the VOFFSET edit field, and then click
the VOFFSET SET button to perform the write.
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
_______________________________________________________________________________________
MAX4455 Evaluation Kit/Evaluation System
Evaluate: MAX4455
NOTE: MULTIPLE CHANNEL WRITE IN EXPERT MODE PROVIDES DIRECT ACCESS TO THE MULTIPLE-CHANNEL REGISTERS.
Figure 4. MAX4455 Multiple Channel Write—Expert Mode
_______________________________________________________________________________________
7
Evaluate: MAX4455
MAX4455 Evaluation Kit/Evaluation System
Table 2. Command Buttons
BUTTON
FUNCTION
Table 3. Drawing Tool Buttons
BUTTON
FUNCTION
Load bitmap file into on-screen display memory
Read the luma fill value stored at the selected line
and column
Save on-screen display memory to a bitmap file
Freehand drawing single-pixel points by dragging
the mouse
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
Draw a rectangle filled with vertical bars of
varying luminance by dragging the mouse across
the opposite corners of the desired region
Display the help file
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
Select channel 0 or 1 as the source of the shared
memory
8
Table 5. Time Stamp Buttons
BUTTON
FUNCTION
Select channel 2 or 3 as the source of the shared
memory
Place the time stamp where the mouse was
clicked
Select channel 4 or 5 as the source of the shared
memory
Enable or disable the time stamp
Select channel 6 or 7 as the source of the shared
memory
Enable or disable the date stamp
Disable shared memory
Select the font to use for the time/date stamp
_______________________________________________________________________________________
MAX4455 Evaluation Kit/Evaluation System
BUTTON
Evaluate: MAX4455
Table 6. Multiple Write Buttons
Table 7. Window View Buttons
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
Table 8. Luma (Brightness) Buttons
View the parallel port diagnostics window
BUTTON
LUMA FILL VALUE
MAX4455 QUAD-PIXEL
LUMA NYBBLE
Table 8. Luma (Brightness) Buttons
(continued)
Transparent (no fill)
0
Insert 7 IRE fill
1
Insert 14 IRE fill
2
Insert 60 IRE fill
9
Insert 21 IRE fill
3
Insert 67 IRE fill
10
Insert 27 IRE fill
4
Insert 74 IRE fill
11
Insert 34 IRE fill
5
Insert 80 IRE fill
12
Insert 41 IRE fill
6
Insert 87 IRE fill
13
Insert 47 IRE fill
7
Insert 94 IRE fill
14
Insert 54 IRE fill
8
Insert 100 IRE fill
15
BUTTON
LUMA FILL VALUE
MAX4455 QUAD-PIXEL
LUMA NYBBLE
_______________________________________________________________________________________
9
Evaluate: MAX4455
MAX4455 Evaluation Kit/Evaluation System
NOTE: THE MAX4358 CROSSPOINT SWITCH WINDOW CONTROLS THE OPTIONAL COMPANION BOARD, WHICH IS PART OF
THE MAX4455 EV SYSTEM.
Figure 5. MAX4358 Crosspoint Switch
Table 9. MAX4358 Crosspoint Switch
Command Buttons
BUTTON
FUNCTION
Route MAX4358 inputs 0–15 to outputs 0–15
Inhibit all video outputs
Set all MAX4358 outputs to unity gain
Set all MAX4358 outputs to a gain of 2V/V
PAL/SECAM Compatability
When used with PAL or SECAM video systems, use the
vertical offset (
) to position the active portion of the
on-screen display so that it is visible.
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).
Toggle Expert Mode on and off, enabling access
to all 32 inputs and all 16 outputs
10
______________________________________________________________________________________
MAX4455 Evaluation Kit/Evaluation System
Figure 6. MAX4455 Character Generator
Table 10. Character Generator Command
Buttons
BUTTON
FUNCTION
Choose which windows font to use when drawing
text
Write white text (100 IRE) on a black background
Write light gray text (74 IRE) on a black
background
Write dark gray text (47 IRE) on a black
background
Write black text (0 IRE) on a white (100 IRE)
background
Writing Multiple Channels
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 MAX4455EVSYS), choose the
MAX4358 crosspoint from the view menu (see Figure 5).
Each of the outputs has a drop-down combo box to
select an input signal. Each output can also be configured 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.
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 functional, and the software allows control of all channels.
When expert mode is selected, the GUI provides controls for all inputs and outputs, as well as exposing the
IC address pin controls.
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 settings related to low-level register access. These settings do not need to be changed.
______________________________________________________________________________________
11
Evaluate: MAX4455
NOTE: THE CHARACTER GENERATOR TOOL PLACES ARBITRARY TEXT MESSAGES ON ANY CHANNEL, USING ANY
STANDARD WINDOWS FONT INSTALLED ON THE HOST COMPUTER.
Evaluate: MAX4455
MAX4455 Evaluation Kit/Evaluation System
Character Generator
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.
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.
The text color buttons set the text foreground color to
luma values of 100 IRE, 74 IRE, 47 IRE, or 0 IRE.
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.)
The crosspoint outputs are sampled through the rightangle connector J5, or can optionally be fed through
the BNC jacks. Resistor/capacitor networks such as
C32-C33-R10 sample the video signals.
Troubleshooting
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 antialiasing 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 NTSC line pair.
Problem: software can’t read MAX4455 EV kit
Although the MAX4455 EV kit works directly with most
modern computers, some systems require that the parallel port must be enabled for bidirectional mode in the
BIOS setup screen. You must reboot your computer,
enter BIOS setup before Windows starts, find the integrated peripherals screen, and ensure that the LPT port is
configured as an ECP port. Standard and EPP parallel
port settings are not compatible with the MAX4455 EV kit.
Problem: switching channels causes the display to roll
If the MAX4455 inserts video fill during the vertical blanking 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.)
Because the MAX4455 EV system uses a bidirectional
parallel printer cable as opposed to a local microprocessor bus, Schmitt triggers are used to sharpen the rise
times of the read and write strobes. These Schmitt 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 accommodate 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 production designs. Throughput is severely limited, and
the long cable requires Schmitt trigger buffers to clean
up the read/write strobes.
12
______________________________________________________________________________________
C2
0.1µF
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
RDY/BSY
HD0
HD1
HD2
HD3
HD4
HD5
HD6
HD7
ADDR/DATA
RD
WR
CS
VSYNC0
C1
0.1µF
VCCINT
VH1
VSYNC1
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
DGND
DVDD
D5
D4
D3
D2
D1
D0
RDY/BSY
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
ADDR/DATA
RD
WR
CS
DGND
VH1
VIDIN0
VIDIN1
100
26
V5YNC3
99
27
V5YNC4
98
28
V5YNC5
97
29
V5YNC6
96
30
95
V5YNC7
VIDIN7
31
94
R1
10kΩ
93
VCCINT
32
C3
0.1µF
33
AGND1
DVDD
92
34
91
36
R9
75Ω
C16
0.1µF
35
VCC
90
R8
75Ω
C15
0.1µF
37
VCC
88
U1
38
39
87
40
R7
75Ω
C14
0.1µF
MAX4455
89
VCC
86
R6
75Ω
C13
0.1µF
VCCINT
41
VCC
85
84
C4
0.1µF
42
83
44
R5
75Ω
C12
0.1µF
43
VCC
82
81
46
R4
75Ω
C11
0.1µF
45
VCC
OSDFILL5
C48
0.1µF
RSET
DGND
OSDFILL1
OSDFILL1
V5YNC2
VIDIN2
D6
DQ6
VIDIN3
D7
DQ7
VIDIN4
D15
DQ15
VIDIN5
D14
DQ14
VIDIN6
D13
DQ13
D12
DQ12
VDDA8
D11
DQ11
OSDFILL3
DVDD
OSDFILL2
OSDFILL2
OSDFILL3
VDDA3
DGND
OSDFILL0
OSDFILL0
D10
DQ10
VDDA0
D9
DQ9
D8
DQ8
VDDA1
DQM
DQM
VDDA2
A9
A9
CLK
CLK
79
48
R3
75Ω
C10
0.1µF
47
VCC
80
VDDA5
OSDFILL6
OSDFILL6
78
R2
75Ω
C9
0.1µF
VCCINT
49
VCC
77
OSDFILL7
C5
0.1µF
50
XTAL2
DGND
C8
0.1µF
CAS
RAS
BA
A10
A0
A1
DVDD
DGND
A2
A3
OSDKEY0
OSDKEY1
OSDKEY2
OSDKEY3
VK1
DGND
OSDKEY4
OSDKEY5
OSDKEY6
OSDKEY7
DVDD
DGND
XTAL1/SYNC
76
OSDFILL7
DVDD
OSDFILL4
OSDFILL4
A8
A8
VDDA4
A7
A7
OSDFILL5
A6
A6
A5
A5
A4
A4
VDDA6
WE
WE#
VDDA7
DGND
OSDFILL0
OSDFILL1
OSDFILL2
OSDFILL3
VCCINT
DQ1
DQ0
C54
OPEN
3
2
1
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
VKEY
C31
0.1µF
C26
0.1µF
VCCINT
C25
0.1µF
VCCINT
C24
0.1µF
A3
A2
A1
A0
A10
BA
RAS#
CAS#
WE#
DQM
DQ7
DQ6
DQ5
DQ4
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
NOTE: U1-94 CONNECTS TWO AGNDS TOGETHER BY PC BOARD TRACE LAYER 4.
CAS#
C6
0.1µF
VCCINT
RAS#
BA
A10
A0
A1
A2
A3
OSDKEY0
OSDKEY1
OSDKEY2
OSDKEY3
OSDKEY4
OSDKEY5
OSDKEY6
OSDKEY7
C7
0.1µF
DQ3
DQ2
C56
OPEN
VDD
A3
A2
A1
A0
A10
BA
CS#
RAS#
CAS#
WE#
DQML
VDDQ
DQ7
DQ6
VSSQ
DQ5
DQ4
VDDQ
DQ3
DQ2
VSSQ
DQ1
DQ0
VDD
VSS
A4
A5
A6
A7
A8
A9
N.C.
CKE
CLK
DQMH
N.C.
VDDQ
DQ8
DQ9
VSSQ
DQ10
DQ11
VDDQ
DQ12
DQ13
VSSQ
DQ14
DQ15
VSS
U2
MT48LC1M16A1TG-7S
C55
OPEN
5
SYNC
C53
OPEN
C17
0.1µF
VCCINT
C52
OPEN
OSDFILL4
73
VCCINT
C51
OPEN
OSDFILL5
4
Y1
OPEN
C50
OPEN
OSDFILL6
74
75
C49
OPEN
OSDFILL7
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
A4
A5
A6
A7
A8
A9
CLK
DQM
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
C29
0.1µF
VCCINT
C27
0.1µF
VCCINT
C28
0.1µF
VCCINT
Evaluate: MAX4455
VCC
MAX4455 Evaluation Kit/Evaluation System
Figure 7. MAX4455 EV Kit Schematic (Sheet 1 of 2)
______________________________________________________________________________________
13
Evaluate: MAX4455
MAX4455 Evaluation Kit/Evaluation System
C33
0.047µF
J5-1
J5-2
J5-3
OUT00
J5-4
OUT01
J5-5
J5-6
OUT02
J5-7
J5-8
OUT03
J5-9
J5-10
OUT04
J5-12
OUT05
OUT00
J5-14
OUT06
J5-13
J5-16
OUT07
R11
430Ω
JU2
J5-18
OSDFILL0
J5-19
J5-20
OSDFILL1
J5-21
J5-22
J5-23
J5-26
OSDFILL4
J5-27
J5-28
OSDFILL5
J5-29
J5-30
OUT02
R12
430Ω
JU3
J5-37
OSDKEY0
OSDKEY1
J5-38
J5-39
J5-43
J5-45
OSDKEY4
J5-44
OSDKEY5
J5-46
OSDKEY6
J5-48
R13
430Ω
JU4
OUT04
OUT05
3
C19
0.1µF
IN
OUT
U3
OUT06
2
OUT07
VKEY
C23
330µF
10V
J6-13
J6-12
HD4
J6-11
J6-10
R14
430Ω
JU5
HD3
J6-9
CS
J6-8
HD2
J6-7
RD
J6-6
HD1
J6-5
RDY/BSY
J6-4
HDD
J6-3
ADDR/DATA
J6-2
WR
J6-1
VSYNC4
C40
470pF
VSYNC4
R15
430Ω
JU6
VSYNC5
C43
470pF
VSYNC5
R16
430Ω
JU7
VSYNC6
C44
470pF
VCCINT VKEY VCC
1
VSYNC6
2
3
R17
430Ω
JU8
C47
470pF
VSYNC7
TB1
4
VSYNC7
5
U4
VCCINT XDSC_40.50MHz
6
C22
0.1µF
C20
0.01µF
VCC
VSYNC3
C46
0.047µF
C18
390µF
6.3V
GND
HD5
VSYNC3
4
C21
0.1µF
J6-15
J6-14
C39
470pF
OSDKEY7
MAX8867
5 BP
HD6
C45
0.047µF
J5-50
SHDN
J6-17
J6-16
VSYNC2
C42
0.047µF
J5-49
1
HD7
C41
0.047µF
J5-47
VCCINT
J6-19
J6-18
VSYNC2
OSDKEY3
J5-42
VCC
J6-20
C36
470pF
OSDKEY2
J5-40
J5-41
J6-21
N.C.
C38
0.047µF
J5-33
J5-36
J6-22
VSYNC1
OSDFILL7
J5-34
J6-23
VSYNC1
C35
470pF
OSDFILL6
J5-32
J5-35
J6-24
C37
0.047µF
OUT03
J5-31
J6-25
N.C.
OSDFILL3
J5-25
J6-26
N.C.
VSYNC0
OSDFILL2
J5-24
N.C.
N.C.
J5-15
J5-17
VSYNC0
C32
470pF
C34
0.047µF
OUT01
J5-11
R10
430Ω
JU1
V+
D
4
6
SYNC
GND
3
VH1
C30
330µF
10V
C57
330µF
10V
JU9
Figure 7. MAX4455 EV Kit Schematic (Sheet 2 of 2)
14
______________________________________________________________________________________
VH1
MAX4455 Evaluation Kit/Evaluation System
Evaluate: MAX4455
Figure 8. MAX4455 EV Kit Component Placement Guide—Component Side
______________________________________________________________________________________
15
Evaluate: MAX4455
MAX4455 Evaluation Kit/Evaluation System
Figure 9. MAX4455 EV Kit Component Placement Guide—Solder Side
16
______________________________________________________________________________________
MAX4455 Evaluation Kit/Evaluation System
Evaluate: MAX4455
Figure 10. MAX4455 EV Kit PC Board Layout—Component Side
______________________________________________________________________________________
17
Evaluate: MAX4455
MAX4455 Evaluation Kit/Evaluation System
Figure 11. MAX4455 EV Kit PC Board Layout—Internal Layer 2
18
______________________________________________________________________________________
MAX4455 Evaluation Kit/Evaluation System
Evaluate: MAX4455
Figure 12. MAX4455 EV Kit PC Board Layout—Internal Layer 3
______________________________________________________________________________________
19
Evaluate: MAX4455
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
© 2002 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.