General Description
The MAX9675 evaluation kit (EV kit) provides a proven
design to evaluate the MAX9675 nonblocking 16 x 16
video crosspoint switch with buffered inputs and out-
puts. The EV kit provides access to all of the inputs and
outputs. The EV kit also includes Windows®2000/
XP- and Windows Vista®-compatible software that pro-
vides a simple graphical user interface (GUI) for exer-
cising the features of the MAX9675.
The MAX9675 EV kit PCB comes with a MAX9675ECQ+
installed.
Features
oBNC Connectors for All Inputs and Outputs
oWindows 2000/XP- and Windows Vista (32-Bit)-
Compatible Software
oUSB-PC Connection (Cable Included)
oLead-Free and RoHS Compliant
oProven PCB Layout
oFully Assembled and Tested
Evaluates: MAX9675
MAX9675 Evaluation Kit
________________________________________________________________
Maxim Integrated Products
1
19-4387; Rev 0; 11/08
Component List
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
D ESIG N A T I O N QTY DESCRIPTION
C1, C12, C14 3
10µF ±20%, 16V X5R ceramic
capacitors (1206)
Murata GRM31CR61C106M
C2, C3 2
22pF ±5%, 50V C0G ceramic
capacitors (0603)
Murata GRM1885C1H220J
C4 1
0.033µF ±10%, 16V X5R ceramic
capacitor (0603)
Taiyo Yuden EMK107BJ333KA
C5–C10 , C17,
C18, C19–C38 28
0.1µF ±10%, 16V X7R ceramic
capacitors (0603)
TDK C1608X7R1C104K
C11, C13,
C39–C46 10
1µF ±10%, 16V X5R ceramic
capacitors (0603)
TDK C1608X5R1C105K
C15, C16 2
10pF ±5%, 50V C0G ceramic
capacitors (0603)
Murata GRM1885C1H100J
C47, C48 2
10µF ±20% 10V tantalum capacitors
(B case)
AVX TAJB106M010
IN 00–IN 15,
OU T00–O U T15 32 75Ω BNC female jacks, 4 pins,
0.250in spacing (top mount)
J1 1 USB type-B right-angle PC-mount
receptacle
J2 1 5-position terminal block
J16 1 Dual-row (2 x 8) 16-pin header
D ESIG N A T I O N QTY DESCRIPTION
JU1–JU4,
JU6–JU13 12 3-pin headers
L1 1 Ferrite bead
TDK MMZ1608R301A (0603)
R1, R2 2 27Ω ±5% resistors (0603)
R3 1 1.5kΩ ±5% resistor (0603)
R4 1 470Ω ±5% resistor (0603)
R5 1 2.2kΩ ±5% resistor (0603)
R6 1 10kΩ ±5% resistor (0603)
R7 1 169kΩ ±1% resistor (0603)
R8 1 100kΩ ±1% resistor (0603)
R9–R13, R46 0 Not installed, resistors (0603)
R9–R13 ar e shor t ( P C tr ace) ; R46 i s op en
R14–R45 32 75Ω ±1% resistors (0603)
U1 1
Video crosspoint switch
(100 TQFP)
Maxim MAX9675ECQ+
U2 1
Adjustable output LDO regulator
(5 SC70)
Maxim MAX8512EXK+T
U3 1 +2.5V LDO regulator (5 SC70)
Maxim MAX8511EXK25+T
U4 1 USB-to-UART converter
(32 TQFP)
U5 1 93C46 type 3-wire EEPROM
(8 SO)
PART TYPE
MAX9675EVKIT+ EV Kit
+
Denotes lead-free and RoHS compliant.
Windows and Windows Vista are registered trademarks of
Microsoft Corp.
Evaluates: MAX9675
MAX9675 Evaluation Kit
2 _______________________________________________________________________________________
Quick Start
Required Equipment
Before beginning, the following equipment is needed:
• MAX9675 EV kit (USB cable included)
• One +5V/250mA analog power supply
• One -5V/250mA analog power supply
• One +5V/50mA digital power supply
• A user-supplied Windows 2000/XP- or Windows
Vista-compatible PC with a spare USB port
• Video signal generator (e.g., Tektronix TG-700 or
similar)
• The appropriate video measurement equipment
(e.g., Tektronix VM700 or similar)
Note: In the following sections, software-related items
are identified by bolding. Text in bold refers to items
directly from the EV kit software. Text in bold and under-
lined refers to items from the Windows operating system.
Procedure
The MAX9675 EV kit is fully assembled and tested.
Follow the steps below to verify board operation:
1) Visit www.maxim-ic.com/evkitsoftware to down-
load the latest version of the EV kit software,
9675Rxx.ZIP. Save the EV kit software to a tempo-
rary folder and uncompress the ZIP file.
2) Install the EV kit software on your computer by run-
ning the INSTALL.EXE program inside the temporary
folder. The program files are copied and icons are
created in the Windows Start | Programs menu.
3) Turn off all power supplies.
4) Connect the ground terminal of the +5V digital
power supply to pin 4 of the J2 connector.
5) Connect the positive terminal of the +5V digital
power supply to pin 5 of the J2 connector.
6) Connect the ground terminal of the +5V analog
power supply to pin 2 of the J2 connector.
7) Connect the positive terminal of the +5V analog
power supply to pin 1 of the J2 connector.
Component List (continued)
D ESIG N A T I O N QTY DESCRIPTION
U6 1
Low-power microcontroller
(68 QFN-EP*)
Maxim MAXQ2000-RAX+
U7–U10 4 Level translators (10 µMAX
®
)
Maxim MAX1840EUB+
Y1 1
16MHz crystal
Hong Kong X’tals
SSM1600000E18FAF
D ESIG N A T I O N QTY DESCRIPTION
Y2 1
6MHz crystal
Hong Kong X’tals
SSL6000000E18FAF
Y3 0 Not installed, crystal
— 12 Shunts
— 1 USB high-speed A-to-B cable, 6ft
— 1 PCB: MAX9675 Evaluation Kit+
Component Suppliers
SUPPLIER PHONE WEBSITE
AVX Corporation 843-946-0238 www.avxcorp.com
Hong Kong X’tals Ltd. 852-35112388 www.hongkongcrystal.com
Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com
Taiyo Yuden 800-348-2496 www.t-yuden.com
TDK Corp. 847-803-6100 www.component.tdk.com
µMAX is a registered trademark of Maxim Integrated Products, Inc.
*
EP = Exposed pad.
Note: Indicate that you are using the MAX9675 when contacting these component suppliers.
MAX9675 EV Kit Files
FILE DESCRIPTION
INSTALL.EXE Installs the EV kit files on your
computer
MAX9675.EXE Application program
FTD2XX.INF USB device driver file
UNINST.INI Uninstalls the EV kit software
USB_Driver_Help.PDF USB driver installation help file
8) Connect the ground terminal of the -5V analog
power supply to pin 2 of the J2 connector.
9) Connect the negative terminal of the -5V analog
power supply to pin 3 of the J2 connector.
10) Verify that all jumpers are in their default positions,
as shown in Table 1.
11) Connect the output of the video signal generator to
the IN00 connector on the MAX9675 EV kit.
12) Connect the OUT00 connector of the MAX9675 EV
kit to the input of the video measurement equipment.
13) Turn on all power supplies.
14) Turn on the video signal generator.
15) Connect the USB cable from the PC to the EV kit
board. A New Hardware Found window pops up
when installing the USB driver for the first time. If you
do not see a window that is similar to the one
described above after 30 seconds, remove the USB
cable from the board and reconnect it. Administrator
privileges are required to install the USB device driver
on Windows.
16) Follow the directions of the Add New Hardware
Wizard to install the USB device driver. Choose the
Search for the best driver for your device option.
Specify the location of the device driver to be
C:\Program Files\MAX9675 (default installation
directory) using the Browse button. During device
driver installation, Windows may show a warning
message indicating that the device driver Maxim
uses does not contain a digital signature. This is not
an error condition and it is safe to proceed with
installation. Refer to the USB_Driver_Help.PDF doc-
ument included with the software for additional
information.
17) Start the MAX9675 EV kit software by opening its
icon in the Start | Programs menu. The EV kit soft-
ware main window appears, as shown in Figure 1.
18) Check the Output Enable checkbox in the
Individual Output Setting group box.
19) Press the Program button.
20) On the video measurement equipment, verify that
the output signal matches the input signal.
Evaluates: MAX9675
MAX9675 Evaluation Kit
_______________________________________________________________________________________ 3
Table 1. Jumper Settings (JU1–JU4, JU6–JU13)
JUMPER SHUNT POSITION DESCRIPTION
1-2 Connects the address pin to VDD
JU1–JU4 2-3* Connects the address pin to ground
1-2* MISO signal connected to on-board microcontroller
JU6 2-3 Connect external MISO signal to pin 1 of the J16 connector
1-2* MOSI signal connected to on-board microcontroller
JU7 2-3 Connect external MOSI signal to pin 3 of the J16 connector
1-2* SCLK signal connected to on-board microcontroller
JU8 2-3 Connect external SCLK signal to pin 5 of the J16 connector
1-2* CE signal connected to on-board microcontroller
JU9 2-3 Connect external CE signal to pin 7 of the J16 connector
1-2* AOUT signal connected to on-board microcontroller
JU10 2-3 Connect external AOUT signal to pin 9 of the J16 connector
1-2* MODE signal connected to on-board microcontroller
JU11 2-3 Connect external MODE signal to pin 11 of the J16 connector
1-2* RESET signal connected to on-board microcontroller
JU12 2-3 Connect external RESET signal to pin 13 of the J16 connector
1-2* UPDATE signal connected to on-board microcontroller
JU13 2-3 Connect external UPDATE signal to pin 15 of the J16 connector
*
Default position.
Evaluates: MAX9675
Detailed Description of Software
The MAX9675 EV kit software main window shown in
Figure 1 contains a device Address drop-down list, an
Output Settings group box, an Address Recognition
group box, and a device Reset button.
Device Address
Select the appropriate device address in the Address
drop-down list according to the jumper settings on
JU1–JU4. Jumpers JU1–JU4 configure the logic levels
on the address pins of the MAX9675.
Output Settings
The Output Settings group box has all of the functions
to configure the outputs of the MAX9675.
In the Mode group box, click on the Mode 0 radio button
to select the individual output address mode. Click on
the Mode 1 radio button to select the complete matrix
mode. In the individual output address mode, only one
output is configured at a time. In the complete matrix
mode, all outputs are configured in one SPI™ command.
When the Mode 0 radio button is selected, use the
Individual Output Setting group box to configure an
output. In the Individual Output Setting group box,
use the Output Ch drop-down list to select the target
output channel. Use the Input Ch drop-down list to
select the input channel. A 1V/V or 2V/V gain can be set
by the Gain drop-down list. Check the Output Enable
checkbox to enable the selected output channel. After
the Individual Output Setting group box is configured,
press the Program button to send the SPI command to
the MAX9675. The UPDATE pin of the MAX9675 will
also be pulled low to transfer data from the mode regis-
ters to the switch matrix in the MAX9675.
MAX9675 Evaluation Kit
4 _______________________________________________________________________________________
Figure 1. MAX9675 EV Kit Software Main Window (Individual Output Address Mode)
SPI is a trademark of Motorola, Inc.
When the Mode 1 radio button is selected, as shown in
Figure 2, the Individual Output Setting group box
becomes the Output 0 group box, which is used to
configure output channel 0. All other output group
boxes are used to configure their corresponding output
channels. Use the Input Ch drop-down list to select the
input channel for the corresponding output channel.
Check the appropriate Output Enable checkbox to
enable the corresponding output channel. A 1V/V or
2V/V gain can be set using the Gain drop-down list.
After all of the output group boxes are configured,
press the Program button to send the 96-bit SPI
command to the MAX9675. The UPDATE pin of the
MAX9675 will be pulled low to transfer data from the
mode registers to the switch matrix in the MAX9675.
After the Program button is pressed and the SPI com-
mand is sent to the MAX9675, and if the device
address in the Address drop-down list is correct, the
address recognition output (AOUT) will assert low. In
addition, the AOUT Asserted label in the Address
Recognition group box will appear.
Press the Reset button to pull the RESET pin of the
MAX9675 low to reset the device.
Detailed Description of Hardware
The MAX9675 is a nonblocking 16 x 16 video cross-
point switch with buffered inputs and outputs. The
MAX9675 EV kit has BNC connectors for all of the
inputs and outputs.
Evaluates: MAX9675
MAX9675 Evaluation Kit
_______________________________________________________________________________________ 5
Figure 2. MAX9675 EV Kit Software Main Window (Complete Matrix Mode)
Evaluates: MAX9675
User-Supplied SPI Interface
To use the MAX9675 EV kit with a user-supplied SPI
interface, move the shunts of JU6–JU13 to the 2-3 posi-
tion. Connect the user-supplied SPI signals to the
appropriate pins on J16. See Table 2 for the pin
description of header J16.
Device Address
JU1–JU4 set the logic levels of the address program-
ming input pins A0–A3, respectively. Place the shunt in
the 1-2 position to drive the corresponding address
programming input pin high. Place the shunt in the 2-3
position to drive the corresponding address program-
ming input pin low.
MAX9675 Evaluation Kit
6 _______________________________________________________________________________________
Table 2. Pin Description of the User-
Interface Header (J16)
PIN DESCRIPTION
1 MISO
2, 4, 6, 8, 10, 12, 14, 16 Digital ground
3 MOSI
5 SCLK
7CE
9AOUT
11 MODE
13 RESET
15 UPDATE
Evaluates: MAX9675
MAX9675 Evaluation Kit
_______________________________________________________________________________________ 7
Figure 3a. MAX9675 EV Kit Schematic (Sheet 1 of 3)
Evaluates: MAX9675
MAX9675 Evaluation Kit
8 _______________________________________________________________________________________
Figure 3b. MAX9675 EV Kit Schematic (Sheet 2 of 3)
Evaluates: MAX9675
MAX9675 Evaluation Kit
_______________________________________________________________________________________ 9
Figure 3c. MAX9675 EV Kit Schematic (Sheet 3 of 3)
Evaluates: MAX9675
MAX9675 Evaluation Kit
10 ______________________________________________________________________________________
Figure 4. MAX9675 EV Kit Component Placement Guide—Component Side
Evaluates: MAX9675
MAX9675 Evaluation Kit
______________________________________________________________________________________ 11
Figure 5. MAX9675 EV Kit PCB Layout—Component 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.
12
__________________
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
Evaluates: MAX9675
MAX9675 Evaluation Kit
Figure 6. MAX9675 EV Kit PCB Layout—Solder Side
