Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsDev KitsPCB design board

_______________________________________________________________ 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.

MAX5392 Evaluation System

Evaluates: MAX5387/MAX5392

General Description

The MAX5392 evaluation kit (EV kit) is an assembled and

tested PCB that features two MAX5392M 50kI dual digi-

tal potentiometer ICs. The MAX5392M IC features dual

volatile 50kI 256-tap potentiometers and communicates

through an I

C-compatible serial interface (or through a

stand-alone 2-wire serial interface).

The MAX5392EVMINIQU+ evaluation system (EV sys-

tem) includes the EV kit and a MINIQUSB+ interface

board. The MINIQUSB+ interface board can be used to

enable PC communication through the 2-wire serial inter-

face. Windows

2000- , Windows XP

-, and Windows

Vista

-compatible software provides a professional user

interface for exercising the MAX5392 features. The pro-

gram is menu-driven and offers a graphical user inter-

face (GUI) complete with buttons, track bars, and edit

boxes. The EV kit software can also be used to evaluate

the MAX5387. The EV kit can also be interfaced directly

to a user-supplied 2-wire system.

The MAX5392 IC 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 (MAX5392EVMINIQU+) for a complete PC-based

evaluation of the MAX5392.

The EV kit can also be used to evaluate the MAX5392L

(10kI) and MAX5392N (100kI). The EV kit contains

PCB footprints for two MAX5387 ICs, which allows the

user to independently control up to eight potentiometers.

To evaluate the MAX5387, order samples and install the

ICs on U1 and/or U2 PCB pads.

Features

S 1.7V to 5.25V Single-Supply Operation

S Controls Up to Eight Potentiometers

S Configurable and Fixed Device Addresses

S I

C-Compatible Serial Interface or Stand-Alone

2-Wire Serial-Interface Operation

S Easy-to-Use Menu-Driven Software

S Includes Windows 2000- , Windows XP-, and

Windows Vista-Compatible Software

S Fully Assembled and Tested

Component Lists

MAX5392 EV System

(MAX5392EVMINIQU+)

19-5146; Rev 1; 5/10

Windows, Windows XP, and Windows Vista are registered

trademarks of Microsoft Corp.

Ordering Information

+Denotes lead(Pb)-free and RoHS compliant.

MAX5392 EV Kit

PART TYPE

MAX5392EVMINIQU+ EV System

PART QTY DESCRIPTION

MAX5392EVKIT+ 1 EV kit

MINIQUSB+ 1 Maxim command module

DESIGNATION QTY DESCRIPTION

C1, C2, C3,

C5, C7, C11,

C13, C17–C20

1FF Q10%, 16V X5R ceramic

capacitors (0603)

TDK C1608X5R1C105K

Murata GRM188R61C105K

C4, C8, C9

C12, C14, C15

0.1FF Q10%, 50V X7R ceramic

capacitors (0603)

Murata GRM188R71H104K

TDK C1608X7R1H104K

C6 1

10FF Q10%, 6.3V X5R ceramic

capacitor (0805)

Murata GRM21BR60J106K

TDK C2012X5R0J106K

C10, C16,

C21, C22

0 Not installed, capacitors (0603)

J1 1 2 x 3-pin header

J2 1 2 x 8-pin header

J3 1 8-pin female receptacle

Summary of content (19 pages)

PAGE 1
9-5146; Rev 1; 5/10 MAX5392 Evaluation System Features The MAX5392 evaluation kit (EV kit) is an assembled and tested PCB that features two MAX5392M 50kI dual digital potentiometer ICs. The MAX5392M IC features dual volatile 50kI 256-tap potentiometers and communicates through an I2C-compatible serial interface (or through a stand-alone 2-wire serial interface). S 1.7V to 5.
PAGE 2
Evaluates: MAX5387/MAX5392 MAX5392 Evaluation System Component Lists (continued) MAX5392 EV Kit (continued) DESIGNATION QTY JU1 1 DESCRIPTION DESIGNATION QTY U3, U4 2 Dual 50kI potentiometers (16 SSOP) Maxim MAX5392MAUE+ U5 1 Adjustable output LDO regulator (5 SC70) Maxim MAX8512EXK+ (Top Mark: ADW) U6 1 2.
PAGE 3
MAX5392 Evaluation System • MAX5392 EV system 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.
PAGE 4
Evaluates: MAX5387/MAX5392 MAX5392 Evaluation System Table 1. Jumper Configuration for MAX5392 EV Kit Operation JUMPER JU1 JU2 JU10 JU11 JU12 JU13 JU14 SHUNT POSITION VPOWER = 5V 1-3* VPOWER = 3.3V 1-4 VPOWER = 2.6V Installed* 1.7V supply enabled Not installed 1.7V supply disabled 1-2* U3 VDD = 1.
PAGE 5
MAX5392 Evaluation System Evaluates: MAX5387/MAX5392 Figure 1. MAX5392 Evaluation Kit Software Main Window Detailed Description of Software Graphical User Interface (GUI) Panel The MAX5392 EV kit software GUI shown in Figure 1 is a Windows program that provides a convenient means to control two MAX5392M dual potentiometers. Use the mouse or press the Tab key to navigate through the GUI controls.
PAGE 6
Evaluates: MAX5387/MAX5392 MAX5392 Evaluation System Software Startup Upon startup, the EV kit software automatically searches for the USB interface board’s circuit connection. The EV kit software searches for U3 set 0x58 address and U4 fixed 0x5A address and places the addresses in U3_MAX5392 and U4_MAX5392 Device Address combo boxes, respectively. Upon detecting U4 fixed 0x5A address, U4_MAX5392 Device Address combo box is disabled.
PAGE 7
MAX5392 Evaluation System U_ Status displays Device Connected when the selected address is found or No Connection when the selected address is not found. When selecting an address currently in use, the Device Address combo box is set to ?? and U_ Status also displays No Connection. Factory Default Pressing the Default buttons resets potentiometer A and B wiper positions to the factory-default midscale position.
PAGE 8
Evaluates: MAX5387/MAX5392 MAX5392 Evaluation System Simple I2C Commands There are two methods for communicating with the EV kit, through the normal user-interface panel (Figure 1), or through the I2C commands available by using low-level SMBusK or by selecting the 2-Wire Interface (Figure 4) utility from the main program’s Options | Advanced Users Interface menu bar. A window is displayed that allows I2C operations, such as SMBusReadByte and SMBusWriteByte.
PAGE 9
MAX5392 Evaluation System • Are shunts installed at jumpers JU1, JU2, JU10, and JU22 (power sources for MAX5392)? • Are the SCL and SDA signals pulled up to VPOWER (resistors R6, R7, R9, and R10 installed)? • Are shunts installed at jumpers JU15, JU16, and JU17 (set device address)? • If using an external power supply, verify that power is applied to the EV kit VDD and GND PCB pads.
PAGE 10
Evaluates: MAX5387/MAX5392 MAX5392 Evaluation System MAX5392 U3 VDD Input Configuration Jumper JU10 selects the power source for U3 VDD input. Install a shunt across pins 1-2 of JU10 to operate the MAX5392 extended VDD input power-supply rail to 1.7V. Install a shunt across pins 2-3 to operate the MAX5392M VDD input from the VPOWER rail. See Table 5 for proper jumper configuration for U3 VDD power-supply input. MAX5392 U4 VDD Input Configuration Jumper JU22 selects the power source for U4 VDD input.
PAGE 11
MAX5392 Evaluation System The EV kit requires minor alterations when using an external I2C-compatible controller connected at J1: 1) Disconnect the MINIQUSB+ interface board from the EV kit. 2) Remove resistors R6 and R9, located at level translators U7 and U8 I/0 inputs. Table 8.
PAGE 12
Evaluates: MAX5387/MAX5392 MAX5392 Evaluation System Evaluating the MAX5392L/MAX5392N and MAX5387 ICs U2) and various jumpers to evaluate two MAX5387 ICs. See Table 13 for proper jumper configurations when evaluating the MAX5387 ICs. Also, refer to the MAX5387 EV system data sheet for additional information. The EV kit can also evaluate the MAX5392L and MAX5392N. Remove either U3 and/or U4 and replace them with the desired IC. The MAX5392 EV kit is populated with additional PCB footprints (U1, Table 11.
PAGE 13
MAX5392 Evaluation System JUMPER JU10 JU11 JU12 JU13 JU14 SHUNT POSITION 1-2 U3 VDD = 1.
PAGE 14
Evaluates: MAX5387/MAX5392 MAX5392 Evaluation System Figure 5a.
PAGE 15
MAX5392 Evaluation System Evaluates: MAX5387/MAX5392 Figure 5b.
PAGE 16
Evaluates: MAX5387/MAX5392 MAX5392 Evaluation System Figure 5c.
PAGE 17
MAX5392 Evaluation System Evaluates: MAX5387/MAX5392 1.0’’ Figure 6. MAX5392 EV Kit Component Placement Guide— Component Side 1.0’’ Figure 7.
PAGE 18
Evaluates: MAX5387/MAX5392 MAX5392 Evaluation System 1.0” Figure 8.
PAGE 19
MAX5392 Evaluation System REVISION NUMBER REVISION DATE 0 1/10 Initial release — 1 5/10 Replaced Figures 6 and 7 17 DESCRIPTION PAGES CHANGED 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.