MAX5393EVMINIQU+ [MAXIM]
PC USB to 3-Wire Interface or Stand-Alone 3-Wire Serial-Interface Operation;型号: | MAX5393EVMINIQU+ |
厂家: | MAXIM INTEGRATED PRODUCTS |
描述: | PC USB to 3-Wire Interface or Stand-Alone 3-Wire Serial-Interface Operation PC |
文件: | 总13页 (文件大小:1110K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
19-5118; Rev 0; 1/10
MAX5393 Evaluation System
General Description
Features
Sꢀ 1.7V_to_5.25V_Single-Supply_Operation
The MAX5393 evaluation kit (EV kit) is a fully assembled
and tested PCB that features the MAX5393M 256-tap,
50kI, dual digital potentiometer. The MAX5393 dual
volatile potentiometers communicate through an SPIK-
compatible serial interface (or through a stand-alone
3-wire interface).
Sꢀ PC_USB_to_3-Wire_Interface_or_Stand-Alone_3-Wire_
Serial-Interface_Operation
Sꢀ Easy-to-Use_Menu-Driven_Software
Sꢀ Includes_Windows_2000-,_Windows_XP-,_and_
Windows_Vista-Compatible_Software
The MAX5393EVMINIQU+ evaluation system (EV sys-
tem) includes the MAX5393 EV kit and a MINIQUSB+
interface board. The MINIQUSB+ interface board can
be used to enable PC communication through the
Sꢀ Fully_Assembled_and_Tested
_
M
M
USB interface. Windows 2000- , Windows XP -, and
Ordering Information
M
Windows Vista -compatible software provides a profes-
PART
TYPE
sional user interface for exercising the MAX5393 fea-
tures. The program is menu-driven and offers a graphical
user interface (GUI) complete with buttons, track bars,
and edit boxes. The EV kit software can also be used to
evaluate the MAX5386M, MAX5388, and MAX5391. The
EV kit can also be interfaced directly to a user-supplied
3-wire system.
MAX5393EVMINIQU+
EV System
+Denotes lead(Pb)-free and RoHS compliant.
Component Lists
MAX5393 EV System
(MAX5393EVMINIQU+)
The MAX5393 ICs can be powered from a 1.7V, 2.6V,
3.3V, or 5V source generated from the MINIQUSB+ inter-
face board and EV kit circuitry, or from a user-supplied
external 1.7V to 5.25V DC power supply. Order the EV
system (MAX5393EVMINIQU+) for a complete PC-based
evaluation of the MAX5393.
PART
QTY
DESCRIPTION
EV kit
MAX5393EVKIT+
MINIQUSB+
1
1
Maxim command module
MAX5393 EV Kit (MAX5393EVKIT+)
The EV kit also contains PCB footprints for the MAX5386M,
MAX5388, and MAX5391. To evaluate these parts,
order samples and install the ICs on U1, U4, and U2,
respectively.
DESIGNATION
QTY
DESCRIPTION
C1, C2, C3, C7,
C10, C11, C14,
C15, C19, C20,
C23, C24, C25
1FF Q10%, 16V X5R ceramic
capacitors (0603)
Murata GRM188R71C105K or
TDK C1608X5R1C105K
13
0.1FF Q10%, 50V X7R ceramic
capacitors (0603)
Murata GRM188R71H104K or
TDK C1608X7R1H104K
C4, C8, C12,
C16
4
0
1
C5, C6, C9,
C13
Not installed, ceramic
capacitors (0603)
10FF Q10%, 6.3V X5R ceramic
capacitor (0805)
Murata GRM21BR60J106K or
TDK C2012X5R0J106K
C26
J1
J2
1
1
2 x 4-pin header
2 x 8-pin header
SPI is a trademark of Motorola, Inc.
Windows, Windows XP, and Windows Vista are registered
trademarks of Microsoft Corp.
_ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ _Maxim Integrated Products_ _ 1
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.
MAX5393 Evaluation System
Component Lists (continued)
MAX5393 EV Kit (continued)
DESIGNATION
QTY
DESCRIPTION
DESIGNATION
QTY
DESCRIPTION
J3
1
8-pin female receptacle
Adjustable output LDO
regulator (5 SC70)
Maxim MAX8512EXK+
(Top Mark: ADW)
JU1, JU3–JU6,
JU8–JU18
16
2-pin headers
U5
1
JU2, JU7, JU19
3
1
1
1
3-pin headers
JU20
R1
4-pin header
2.6V LDO regulator (5 SC70)
Maxim MAX8511EXK26+
(Top Mark: AAW)
40.2kI Q1% resistor (0603)
100kI Q1% resistor (0603)
U6
U7
1
1
R2
Not installed, dual digital
potentiometers (16 TQFN-EP*)
Single 1.8V to 5V level translator
(6 SC70)
U1, U2
U3
0
1
0
Dual 1.8V to 5V level translator
(8 SSOP)
256-tap, 50kI, dual digital
potentiometer (14 TSSOP)
Maxim MAX5393MAUD+
U8
1
20
1
—
Shunts (JU1–JU20)
Not installed, digital
potentiometer (10 FMAXM)
PCB: MAX5386/5388/5391/5393
EVALUATION KIT+
U4
—
*EP = Exposed pad.
Component Suppliers
SUPPLIER
PHONE
WEBSITE
www.murata-northamerica.com
www.component.tdk.com
Murata Electronics North America, Inc.
TDK Corp.
770-436-1300
847-803-6100
Note: Indicate that you are using the MAX5386M, MAX5388, MAX5391, or MAX5393 when contacting these component suppliers.
MAX5393 EV Kit Files
FILE
INSTALL.EXE
MAX5393.EXE
FTD2XX.INF
DESCRIPTION
Installs the EV kit files on the computer
Application program
USB driver file
UNINST.INI
Uninstalls the EV kit software
USB driver installation help file
USB_Driver_Help.PDF
µMAX is a registered trademark of Maxim Integrated
Products, Inc.
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MAX5393 Evaluation System
6) Connect the included USB cable from the PC to
Quick Start
Required Equipment
the MINIQUSB+ interface board. A Building_Driver_
Database window pops up in addition to a New_
Hardware_ Found message when installing the
USB driver for the first time. If a window is not seen
that is similar to the one described above after
30s, remove the USB cable from the board and
reconnect it. Administrator privileges are required
to install the USB device driver on Windows 2000,
Windows XP, and Windows Vista.
•
MAX5393 EV system
MAX5393 EV kit
MINQUSB+ command module (USB cable
included)
•
•
User-supplied Windows 2000, Windows XP, or
Windows Vista PC with a spare USB port
One or two multimeters
7) 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\MAX5393 (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
document included with the software if you have
problems during this step.
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 MAX5393 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,
5393Rxx.ZIP. Save the EV kit software to a tempo-
rary folder and uncompress the ZIP file.
2) Install the EV kit software on the computer by run-
ning the INSTALL.EXE program inside the tempo-
rary folder. The program files are copied and icons
are created in the Windows Start_|_Programs menu.
8) Start the EV kit software by opening its icon in the
Start_|_Programs menu.
9) Observe as the program automatically detects the
USB connection and starts the main program.
3) Verify that shunts are correctly installed on the jump-
ers, as listed in Table 1, for proper operation of the
EV kit.
10) Using the Device_ Connected combo box, select
MAX5393 from the list and then press the Default
button. The EV kit software main window appears,
as shown in Figure 1.
4) Connect the multimeters to measure voltage across
the MAX5393 (U3) WA and LA PCB pads and WB
and LB PCB pads.
11) The MAX5393 EV kit is now ready for additional
testing.
5) Connect the MINIQUSB+ interface board to the EV
kit J2 and J3 connectors.
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MAX5393 Evaluation System
Table_1._Jumper_Configuration
JUMPER
SHUNT_POSITION
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
1-2*
EV_KIT_FUNCTION
1.7V LDO output disabled
1.7V LDO output enabled
JU1
MAX5393 HA disconnected from U3 VDD voltage source
MAX5393 HA connected to U3 VDD voltage source
MAX5393 LA disconnected from GND
MAX5393 LA connected to GND
JU12
JU13
JU14
JU15
JU19
MAX5393 HB disconnected from U3 VDD voltage source
MAX5393 HB connected to U3 VDD voltage source
MAX5393 LB disconnected from GND
MAX5393 LB connected to GND
MAX5393 VDD = 1.7V
2-3
MAX5393 VDD voltage dependent on jumper JU20 configuration
VPOWER = 5V
1-2
JU20
1-3*
VPOWER = 3.3V
1-4
VPOWER = 2.6V
*Default position.
positions. The lower Potentiometer_A and Potentiometer_
Detailed Description of Software
B group boxes provide controls to change the respective
wiper positions. The main window’s bottom status bar
provides the USB interface circuit communication status.
Graphical User Interface (GUI) Panel
The MAX5393 EV kit software GUI shown in Figure 1 is
a Windows program that provides a convenient means
to control the MAX5393 dual potentiometer. Use the
mouse or press the Tab key to navigate through the GUI
controls. The correct SPI write operations are generated
to update the MAX5393 internal memory registers when
any of these controls are executed.
Software Startup
Upon startup, the EV kit software automatically searches
for the USB interface board’s circuit connection. In the
Interface group box, the Device_Connected combo box
allows the user to select the proper part being evalu-
ated. Upon selection of the device being evaluated, the
Update_Pot_A_and_B checkbox is enabled/disabled. The
EV kit enters the normal operating mode when the USB
connection is detected and the part has been selected.
Since the MAX5393 does not have read capability, all
of the edit boxes are set to question marks (??) and the
Potentiometerꢀ track bars are set to midscale. If the
USB connection is not detected, the software prompts
the user to retry, exit the program, or enter the demo
mode.
The software divides the EV kit functions into group
boxes. The Interface group box indicates the EV kit
Status and the last write operation Command_ Sent
and Data_ Sent indicators. This data confirms proper
device operation. The Device_ Connected combo box
selects the Maxim part being evaluated and enables
the Update_ Pot_ A_ and_ B checkbox function when
choosing the MAX5393 option from the list. The Default
button programs both potentiometers to their midscale
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MAX5393 Evaluation System
Figure 1. MAX5393 Evaluation Kit Software Main Window
Figure 2. MAX5393 Evaluation Kit Interface Circuit Popup Window
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MAX5393 Evaluation System
Demo Mode
Status Indicator
The EV kit software enters the demo mode, when the
USB connection is not detected, by selecting Cancel on
the MAX5393_ Evaluation_ Kit_ Interface_ Circuit popup
window (Figure 2). The software can also enter demo
mode at any time from the main window by selecting
the Options_|_Demo_Mode menu item. When in demo
mode, all software communication to the EV kit circuit
is disabled; however, most of the software GUI is func-
tional. Demo mode allows the user to evaluate the soft-
ware without hardware connectivity. To exit demo mode,
deselect the Options_|_Demo_Mode menu item.
The Status indicator in the Interface group box displays
EV_Kit_Operational when the EV kit enters the normal
operating mode after the USB connection is detected.
If the USB connection is not detected, or when the
software enters the demo mode, the Status indicator
displays Demo_Mode. Demo mode is used to exercise
the software without hardware connectivity.
Command Sent Indicator
The Command_Sent indicator in the Interface group box
displays the last command sent from the master (soft-
ware) to the MAX5393. There are three SPI commands
available in the MAX5393 IC, which Table 2 describes.
Potentiometer A and B Wiper Positions
The wiper position track bars (WA, WB) in the
Potentiometer_ A and Potentiometer_ B group boxes
are used to independently change the wiper position
between the H_ and L_ end points. Use the computer
mouse or arrow keys to move the wiper position_between
the 256 position points. The wiper position can also be
changed by entering the desired integer value in the
edit boxes, or by pressing the up or down arrows in the
respective edit box. A change in the Wꢀ wiper position_
track bars, or HWꢀ/WLꢀ edit boxes writes to the regis-
ters and the wiper position is updated with the data sent.
The wiper position is shown in the HWꢀ and WLꢀ edit
boxes. The HWꢀ edit box shows the wiper position with
respect to the potentiometer H end point and the WLꢀ
edit box shows the wiper position with respect to the
potentiometer L_ end point.
Data Sent Indicator
The Data_Sent indicator displays the last data sent for
the write to potentiometer A (0x00), potentiometer B
(0x01), or both potentiometer A and B (0x03) commands.
The MAX5393 IC uses an 8-bit (MSBs, D7:D0) data byte
to set the wiper position. Refer to the MAX5391/MAX5393
IC data sheet for additional information.
Keyboard Navigation
Press the Tab key to select each GUI control. The select-
ed control is indicated by a dotted outline. Pressing Shift
+ Tab moves the selection to the previously selected
control. Buttons respond to the keyboard’s space bar
and some controls respond to the keyboard’s up-and-
down arrow keys. Activate the program’s menu bar by
pressing the F10 key and then pressing the letter of the
desired menu item. Most menu items have one letter
underlined, indicating their shortcut key.
Potentiometers A and B can be updated simultane-
ously by checking the Update_Pot_A_and_B checkbox.
When enabled, the Potentiometer_A group box sends
the same data to both of the digital potentiometers and
enables control of both digital potentiometers together.
When a number is entered into the edit boxes, it can be
sent to the device by pressing the Enter key. It is also
sent when Tab or Shift + Tab is pressed.
Factory Default
Pressing the Default button resets potentiometer A and
B wiper positions in the MAX5393 to the factory-default
midscale position.
Simple SPI Commands
There are two methods for communicating with the EV
kit, through the normal user-interface panel (Figure 1)
or through the SPI commands available by selecting
Table_2._MAX5393_SPI_Command
COMMAND
MAX5393
REGISTER
DESCRIPTION
BINARY
HEX
SPI data is written to potentiometer A. Wiper WA position updates with
SPI data.
VREGA
VREGB
00000000
00000001
00000011
0x00
SPI data is written to potentiometer B. Wiper WB position updates with
SPI data.
0x01
0x03
SPI data is written to potentiometers A and B. Wipers WA and WB posi-
tion updates with SPI data.
VREGAB
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MAX5393 Evaluation System
Figure 3. Simple Low-Level 3-Wire Interface
the 3-Wire_Interface (Figure 3) utility from the main pro-
gram’s Options_|_Advanced_Users Interface menu bar.
A window is displayed that allows SPI send/receive data
operations.
The Send_ and_ Receive_ Data group box allows the
user to send data to the MAX5393. The Data_bytes_to_
be_written_edit box indicates data to be sent from the
master (microcontroller) to the device (MAX5393). Eight-
bit hexadecimal numbers should be comma delimited.
Press the Send_Now button to transmit the data from the
master to the device. Data appearing in the Data_bytes_
received edit box is data read from the device. The Data_
bytes_ received edit box in the EV kit software always
shows a default value of 0xFF since the MAX5393 does
not send data back to the master.
On the 3-wire_ interface tab, the Connection group
box defines the hardware connections of the interface.
For the EV kit, K10 is selected from the Clock_ (SCK)_
(SCLK) drop-down list, K12 from the Data_ from_
master_ to_ slave_ (MOSI)_ (DIN) drop-down list, K11
from the Data_ from_ slave_ to_ master_ (MISO)_ (DOUT)
drop-down list, K9 from the Chip-select_(CS)_for_data_
framing drop-down list, and the Use_standard_connec-
tions_ for_ high-speed_ SPI checkbox is checked (see
Figure 3).
Note: The SPI dialog boxes accept numeric data in
hexadecimal format. Hexadecimal numbers must be
prefixed by $ or 0x. Figure 3 shows a simple SPI write-
byte operation using the included 3-wire interface diag-
nostics tool. In this example, the software is sending
command 0x11 (write to potentiometers A and B) and
data 0x7F. The data sequence sets potentiometer A and
B wiper positions to 127.
The Configuration group box allows the user to config-
ure the logic level and data rate. For the MAX5393 EV
kit, check the Send_&_Receive_MSB_first checkbox and
verify that the CPOL=1_(clock_idle_high) and CPHA=1_
(sample_ 2nd_ edge) checkboxes are unchecked (see
Figure 3).
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MAX5393 Evaluation System
General Troubleshooting
EV Kit VDD Input Source
Problem:_Software_reports_it_cannot_find_the_interface_
circuit:
The VPOWER rail is typically supplied as 3.3V or 5V by
the MINIQUSB+ interface board circuitry or 2.6V using
LDO regulator U6. LDO regulator U5 output is set to 1.7V
and is powered from the VPOWER rail. The VPOWER rail
and U5 are used to set the MAX5393 VDD input to 5V,
3.3V, 2.6V, or 1.7V.
•
Is the USB cable connected to the MINIQUSB+ board?
• Has Windows plug-and-play detected the board?
Bring up Control_Panel->System->Device_Manager,
and look at what device nodes are indicated for USB.
If there is an Unknown_ device_ node attached to
the USB, uninstall it—this forces plug-and-play to try
again.
Regulator U5 has an adjustable output that can be con-
figured to a different voltage by replacing resistor R1.
Use the following equation to set U5 output voltage:
VOUT
1.225
•
If using an off-board SPI interface, is the power ground
connected to the EV kit ground (GND) at one of the
header J1 pin connections (J1-2, J1-4, J1-6, or J1-8)?
5
R1 = 10
×
−1
where R1 is in ohms and VOUT is the desired U5 output
voltage.
Detailed Description of Hardware
Jumper JU20 selects the source for the MAX5393 EV
kit circuit VPOWER rail. See Table 3 for proper jumper
configuration for setting VPOWER rail.
The MAX5393 EV kit is an assembled and tested PCB
that features the MAX5393M 256-tap, 50kI, dual digital
potentiometer. Each wiper can be programmed inde-
pendently among 256 tap positions. The EV kit uses a
MAX5393M in a 16-pin TSSOP package on a proven
two-layer PCB design.
Alternatively, the EV kit’s VDD PCB pad can be used to
supply an external 1.7V to 5.25V to the circuit’s VPOWER
rail, by removing the shunt at jumper JU20.
Jumper JU1 enables/disables U5 output. Install a shunt
across JU1 to enable U5 1.7V output. Remove the shunt
at JU1 to disable U5 output. See Table 4 for proper JU1
configuration.
The EV kit provides connector J1 to interface with the
MAX5393 CS, DIN, SCLK, and GND signals directly to
a user-supplied 3-wire system. Connector J1 also pro-
vides a connection for the EV kit’s 1.7V to 5.5V VPOWER
power-supply input.
Note:_LDO U6 output is disabled when the MINIQUSB+
board is not installed at headers J1 and J2.
The EV kit is typically used with a MINIQUSB+ interface
board for communicating with a PC through the 3-wire
serial interface. Logic-level translators U7 and U8 pro-
vide proper SPI interface translation when using 1.7V to
5.5V to power the MAX5393 VDD input.
Table_5._MAX5393_VDD_Power_Source_(JU19,_
JU1,_JU20)
Table_3._VPOWER_Rail_(JU20)
SHUNT_POSITION
SHUNT_
MAX5393_VDD_PIN
POSITION
JU20
1-2
VPOWER_SOURCE
JU19
JU1
JU20
1-2*
Installed*
X
1.7V
5V (MINIQUSB+ circuitry)
Not
installed
1-2
2-3
X
Not powered
1-2
5V (MINIQUSB+ circuitry)
3.3V (MINIQUSB+ circuitry)
2.6V (LDO U6)
1-3
1-2
1-3
1-4
5V
1-4
3.3V
2.6V
External source applied at VDD and GND
PCB pads
Not installed
X
External source applied
at the EV kit VDD and
GND PCB pads
Not
installed
Table_4._U5_LDO_Function_(JU1)
*Default position.
X = Don’t care.
SHUNT_POSITION
U5_1.7V_OUTPUT_
Installed*
Enabled
Disabled
Not installed
*Default position.
8_ _ _ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
MAX5393 Evaluation System
Potentiometer, Voltage-Divider or Variable Resistor,
with Ground Reference
MAX5393 VDD Input Configuration
Jumper JU19 selects the power source for the MAX5393
VDD input. Install a shunt across pins 1-2 to set the
MAX5393 VDD input to 1.7V. Install a shunt across pins
2-3 to set the MAX5393 VDD input to the VPOWER rail.
See Table 5 for proper jumper configuration for the
MAX5393 VDD power-supply input.
The EV kit provides an option to configure the MAX5393
as a potentiometer or voltage-divider, open-ended or
with ground reference, respectively. Use jumpers JU12
and JU13 for potentiometer A, and jumpers JU14 and
JU15 for potentiometer B configurations. See Tables 7
and 8 for jumper options for configuring potentiometers
A and B.
SPI Clock and Data-/Chip-Select Inputs
The MAX5393 features a clock and data-/chip-select
input pins for SPI-compatible communication to control
the wiper position. The clock and data-/chip-select pins
can be driven by the MINIQUSB+ interface circuit or the
PCB header (J1), along with a user-supplied external
SPI-compatible controller. An external SPI-compatible
controller can be connected to CS (J1-3), DIN (J1-5),
SCLK (J1-7), and GND (J1-2, J1-4, J1-6, J1-8) on header
J1 to communicate with the MAX5393 IC. When using
an external SPI-compatible controller, verify that the
MINIQUSB+ interface board has been disconnected
from the EV kit’s J2 and J3 headers. See Table 5 for
header J1 pin assignment.
The MAX5393 IC can also be configured as a variable
resistor by shorting the H_ and W_ pads together using
a wire. When operating as a variable resistor, any power
source connected to the H_, W_, or L_ pads must be
voltage and current limited to the maximum conditions
stated in the MAX5391/MAX5393 IC data sheet.
Note:_To test the device in resistor mode, the ohmmeter
must be GND referenced to the MAX5393. This can be
accomplished by connecting the L_ pin to GND or the H_
pin to VDD. Resistance can then be measured between
W_ and L_ or W_ and H_PCB pads.
Evaluating the MAX5386M/
MAX5388/MAX5391 ICs
The EV kit is populated with additional PCB footprints
(U1, U2, and U4) and various jumpers to evaluate the
MAX5386M, MAX5391, and MAX5388, respectively.
Note: It is recommended that the CS, DIN, and SCLK
signals not drive more than one device at any given time.
Table_6._Header_J1_Pin_Assignment
PIN
SIGNAL
VPOWER
GND
J1-1
J1-2, J1-4, J1-6, J1-8
Refer to the MAX5386M, MAX5388, or MAX5391L/
MAX5391N EV system data sheets for additional infor-
mation when evaluating the_ MAX5386M, MAX5388, or
MAX5391 digital potentiometers.
J1-3
J1-5
J1-7
CS
DIN
SCLK
Table_7._JU12_and_JU13_Jumper_Functions_(Potentiometer_A)
SHUNT_POSITION
HA_PAD
LA_PAD
MAX5393_FUNCTION
JU12
JU13
Not installed
Installed
Not connected
Connected to GND
Not connected
Potentiometer open ended
Not installed
Not connected
Connected to VDD
Potentiometer with GND reference
Voltage-divider open ended
Not installed
Installed*
Installed*
Connected to GND
Voltage-divider with GND reference
*Default position.
Table_8._JU14_and_JU15_Jumper_Functions_(Potentiometer_B)
SHUNT_POSITION
HB_PAD
LB_PAD
MAX5393_FUNCTION
JU14
JU15
Not installed
Installed
Not connected
Connected to GND
Not connected
Potentiometer open ended
Not installed
Not connected
Connected to VDD
Potentiometer with GND reference
Voltage-divider open ended
Not installed
Installed*
Installed*
Connected to GND
Voltage-divider with GND reference
*Default position.
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ_ _ 9
MAX5393 Evaluation System
Table_9._Jumper_Configuration_(JU1–JU20)
JUMPER
SHUNT_POSITION
Not installed
Installed*
1-2*
EV_KIT_FUNCTION
1.7V LDO output disabled
1.7V LDO output enabled
JU1
MAX5386M VDD voltage = 1.7V
JU2
JU3
2-3
MAX5386M VDD voltage dependent on jumper JU20 configuration
MAX5386M HA disconnected from U1 VDD voltage source
MAX5386M HA connected to U1 VDD voltage source
MAX5386M LA disconnected from GND
MAX5386M LA connected to GND
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
1-2*
JU4
MAX5386M HB disconnected from U1 VDD voltage source
MAX5386M HB connected from U1 VDD voltage source
MAX5386M LB disconnected from GND
MAX5386M LB connected to GND
JU5
JU6
MAX5391 VDD voltage = 1.7V
JU7
2-3
MAX5391 VDD voltage dependent on jumper JU20 configuration
MAX5391 HA disconnected from U2 VDD voltage source
MAX5391 HA connected to U2 VDD voltage source
MAX5391 LA disconnected from GND
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
Not installed
Installed*
1-2*
JU8
JU9
MAX5391 LA connected to GND
MAX5391 HB disconnected from U2 VDD voltage source
MAX5391 HB connected to U2 VDD voltage source
MAX5391 LB disconnected from GND
JU10
JU11
JU12
JU13
JU14
JU15
JU16
JU17
JU18
JU19
MAX5391 LB connected to GND
MAX5393 HA disconnected from U3 VDD voltage source
MAX5393 HA connected to U3 VDD voltage source
MAX5393 LA disconnected from GND
MAX5393 LA connected to GND
MAX5393 HB disconnected from U3 VDD voltage source
MAX5393 HB connected to U3 VDD voltage source
MAX5393 LB disconnected from GND
MAX5393 LB connected to GND
MAX5388 LA disconnected from GND
MAX5388 LA connected to GND
MAX5388 HB disconnected from U4 VDD voltage source
MAX5388 HB connected to U4 VDD
MAX5388 LB disconnected from GND
MAX5388 LB connected to GND
MAX5393 VDD = 1.7V
2-3
MAX5393 VDD dependent on jumper JU20 configuration
VPOWER = 5V
1-2
JU20
1-3*
VPOWER = 3.3V
1-4
VPOWER = 2.6V
*Default position.
10_ _ _ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
MAX5393 Evaluation System
Figure 4. MAX5393 EV Kit Schematic
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ_ _ 11
MAX5393 Evaluation System
1.0”
1.0”
Figure 5. MAX5393 EV Kit Component Placement
Guide—Component Side
Figure 6. MAX5393 EV Kit PCB Layout—Component Side
12_ _ _ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ
MAX5393 Evaluation System
1.0”
Figure 7. MAX5393 EV Kit PCB 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.
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13
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2010 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
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