SX8000EV126 Evaluation Tool for SX8733/43/44 USER GUIDE ADVANCED COMMUNICATIONS & SENSING User Guide SX8000EV126 Evaluation Kit for SX8733/43/44 digital temperature sensors GENERAL DESCRIPTION The SX8000EV126 is an evaluation tool for the SX8733, SX8743, SX8744 digital temperature sensors. The SX8733, SX8743 and SX8744 are digital temperature sensors with a 2-wire SMBus/I2C interface. It provides a low cost solution to monitor the temperature of remote diodes as well as its own temperature with an on-chip PN junction sensor. Depending on the device version, 2, 3 or 4 programmable ports are included. They offer the possibility to trig under- / over- temperature alarms which can be used as an interrupt or to connect up to 3 external sensors in single-ended mode or 2 external sensors in differential mode. The parasitic resistances in series with the temperature monitoring diode can be cancelled by an algorithmic, a 3point or a Kelvin (4-wire) method. The SX8744 is pin-to-pin compatible with the LM86 part. The SX8733 (2 programmable ports) is available in MLPDRevision 1.0 / May 2010 ©2010 Semtech Corp. 6 package. The SX8743 (4 programmable ports) and SX8744 (3 programmable ports) are available in MSOP-8 package. . EVK content The evaluation kit is composed of the following parts: The evaluation board A USB cable to connect the board to the PC A CDROM with the installation files and the user guide MINIMAL CONFIGURATION PC with MS Windows 2000/XP USB interface RECOMMENDED READING Page 1 SX8733/43/44 Datasheet www.semtech.com SX8000EV126 USER GUIDE ADVANCED COMMUNICATIONS & SENSING Table of Contents Section 1. 2. 3. Evaluation board overview......................................... 3 Page 15 USB and external voltage .................................. 3 5.2. ERROR: Unable to send a general call reset... 15 1.2. USB.................................................................... 4 5.3. Sensor fault ...................................................... 15 1.3. FTDI ................................................................... 4 6. Board overview ........................................................ 16 1.4. Mode configuration............................................. 4 7. Schematics............................................................... 17 1.5. Device under test ............................................... 4 1.6. Device supply voltage ........................................ 4 1.7. Wrapping zone ................................................... 4 Getting started ........................................................... 4 2.1. Software installation ........................................... 4 2.2. Connecting the board for the first time ............... 5 2.3. Running the GUI ................................................ 5 GUI overview ............................................................. 6 3.1. Menu and toolbar ............................................... 6 3.2. Tab selections .................................................... 7 3.2.1. Mode settings tab ........................................ 7 3.2.2. SX controls tab ............................................ 8 Registers access and start of the acquisition..... 8 Detailed GUI control settings ..................................... 9 4.1. Menu description................................................ 9 4.1.1. File > Connect / Disconnect ........................ 9 4.1.2. File > Open / Save config............................ 9 4.1.3. File > Interface settings ............................... 9 4.1.4. Action > Reset........................................... 10 4.1.5. Action > Refresh........................................ 10 4.1.6. Help > Help ............................................... 10 4.1.7. Help > Datasheet ...................................... 10 4.1.8. Help > About ............................................. 10 4.2. Controls description ......................................... 10 4.2.1. Device selection ........................................ 10 4.2.2. Sensors selection panel ............................ 11 4.2.3. Resistance track cancellation.................... 12 4.2.4. Output code format ................................... 12 4.2.5. Alarms pin active level .............................. 12 4.2.6. Alarms ....................................................... 12 4.2.7. Conversion rate ......................................... 13 4.2.8. Data acquisition......................................... 13 4.3. 5. Section 1.1. 3.3. 4. Page Temperature display ........................................ 14 Troubleshooting ....................................................... 15 5.1. ERROR: Unable to open SX8000EV126 device ... Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 2 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING USER GUIDE 1. Evaluation board overview The evaluation board is shown on Figure 1.1 and each zone is described in the corresponing subsection. 1.1. USB and external voltage S1 is the switch to turns on and off the board. When the board is switched on, the red LED D1 is lighted. W1 is the jumper to select the power supply from the USB or from an external source. When the power supply from the USB is selected, the device supply voltage is 3V. When the power supply from an external source is selected, the external voltage should be connected to P3 and be in the range from 2.7V to 5.5V. W2 is a jumper to remove to allows device current measurement otherwise it should be set in place. Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 3 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 USER GUIDE ADVANCED COMMUNICATIONS & SENSING 1.2. USB J1 is the connector for the USB cable. P2 is the connector to monitor the power supply or the serial communcation bus. 1.3. FTDI A FTDI device is used as a gateway to make the communication between the computer and the chip. 1.4. Mode configuration Q1 and Q2 are the two sensors soldered on the board. The 0 Ohm resistors R1, R2, R5 and R6 allows the connection between the device and the sensor. The default setup can be modified to test more modes by soldering 0 ohm resistors on the footprint R1 to R6 as seen in Table 1. Mode 0 1 8 9 11 12 Set-up R1,R2 R1,R2 R1,R2,R3,R4 R1,R2,R3,R4 R1,R2,R5,R6 R1,R2,R5,R6 Table 1 Setup accessible with resistors R1 to R6 1.5. Device under test This area includes three footprint to test SX8733, SX8743 or SX8744. The chip soldered by default on the board is the SX8743 as it is the most versatile. Two devices can not be present at the same time so do not forget to unsolder the part which is not useful for the test. The Table 2 shows the device loaction. Device SX8733 SX8743 SX8744 Location U6 U5 U4 Table 2 Device location. 1.6. Device supply voltage SX8733 and SX8744 samples are present on the board. They can be unsoldered easily to perform test. 1.7. Wrapping zone A wrapping zone is available to test a particular mode or a particular sensor. test. P1 connector provides connection to Q1 and Q2 sensors. 2. Getting started 2.1. Software installation If an Internet connection is available, check the Semtech web site to download the latest version. Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 4 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING USER GUIDE Otherwise, insert the CD into the CD-ROM drive of your computer. The installation should start automatically. If the installation does not start launch the file “SX8000EV126SetupVx.x.exe“located at your CD ROM root directory. This executable includes the Microsoft .NET Framework 2.0 which is installed if it is not detected on your system. After selection of the installation directory, the GUI will launch. Figure 1. Installation of the GUI 2.2. Connecting the board for the first time Ensure that the jumper W1 on the EVK is set on USB. Connect the board to your USB port and then switch-on the SX8000EV126 using the switch S1. The USB drivers needed by the FTDI - USB to I2C converter are installed at the first kit connection to the USB port. Wait until the drivers installations are finished. 2.3. Running the GUI The GUI can be launch from Windows “Start Menu->Programs->SX8000EV126->SX8000EV126”. The GUI automatically detects the board. If not, you may have to click the “Connect” button located on the GUI tabular. On the tab Mode setting, set the device to SX8743 and set the mode to 0. On the tab SX controls, click on the Tj and TD1 check box to enable the sensors. Click the Regular button to start the conversions. The temperature curves of the sensor are display on the graph. Well done, you are ready to sense temperatures! Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 5 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING USER GUIDE 3. GUI overview The Graphic User Interface (GUI) is mainly divided in 4 sections: 1. Menu and tool bar 2. Tab to select Mode settings or the SX controls 3. Registers access and start of the acquisition 4. Status bar to display error message, configuration file and chip version 1 2 3 4 Figure 2. GUI overview 3.1. Menu and toolbar Figure 3. Menu and toolbar The GUI menu contains 3 items: The File menu gives thee possibility to connect the board, to open/save a .cfg configuration file and to exit the application. Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 6 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING USER GUIDE The Action menu enables the reset or the refresh of the device The Help menu gives the possibility to show the application “About box” and to open the device datasheet The GUI Toolbar contains 6 items: An Open button and a Save button allowing to access .cfg files for user SX87xx configuration. A button that opens or closes the GUI to board USB communication. The reset and refresh button The help button 3.2. Tab selections The user has access to two tabs. One allows the user to select the mode. The other is to view the temperature graph. 3.2.1. Mode settings tab Figure 4 shows the mode setting tab. 1 The device soldered on the board and the serial communication protocol can be selected. 1 3 2 Figure 4. Mode settings tab 2 The table summarize the various characteristics of each mode: The number of external sensor If the sensor are in differential or single-ended mode The track cancellation mode available The number of alarms Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 7 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 USER GUIDE ADVANCED COMMUNICATIONS & SENSING The modes which are not accessed with the selected device will be disabled. 3 The schematics provides a view of how the sensors and the alarm are connected to the chip. It is updated at each mode selection. 3.0.1. SX controls tab Figure 5 shows the SX controls tab. 2 1 Figure 5. SX controls tab 1 All the features of the device can be set on the panel below the graphic area: the output format, the conversion rate, the alarm. 2 The graphic area provides the plots of the selected sensor temperatures against the time. 2.1. Registers access and start of the acquisition The table register displays the registry contents of the device. Setting the device will automatically update the register. The user can also write an hexadecimal value in the table register to change the device settings. The “0x” notation is for hexadecimal. The red writing means the value has not been updated in the device. The value will be written in the device after a click in a different location. Any modification in the register table panels also change the controls. The two buttons under the table register controls the 2 modes the chip can be operated: continuous time or one-shot. Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 8 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING USER GUIDE 3. Detailed GUI control settings This section describes the features accessible by the menu, the controls and the temperature display. 3.1. Menu description 3.1.1. File > Connect / Disconnect The connect/disconnect button start or end the communication. The GUI should always be connected to the board to allows the communication between the computer and the board. During the connection, the GUI reads the chip configuration and updates all the controls. 3.1.2. File > Open / Save config The contents of the menu are described in Figure 6. The user has the possibility to save the GUI configuration in a file. Opening the configuration file will store the chip register contents and the device reference from the file to the chip. Figure 6. Menu contents 3.1.3. File > Interface settings When the chip is set in continuous sampling time, the GUI do a regular polling to update the register contents. The polling rate can be select in this menu from 50 ms to 100 s. The clock frequency of the serial bus (I2C or SMBus) can also be set there. Figure 7. Interface settings Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 9 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING USER GUIDE 3.1.4. Action > Reset The chip reset is made via the serial bus. When a General Call Reset sentence is sent to the chip, all the registers are set to their default values. 3.1.5. Action > Refresh The refresh command read the register values from the chip and update the GUI controls. 3.1.6. Help > Help The help command shows in a new windows the control description pointed by the mouse. 3.1.7. Help > Datasheet The chip datasheet opens on the screen. To get the latest version, go on the web site www.semtech.com. 3.1.8. Help > About This menu will open a windows with the software version. Figure 8. About box 3.2. Controls description The device register contents and the bit changed by the concerned controls are indicated in italic. 3.2.1. Device selection Device selection: selection of the device on board. The device selection should be set first. Protocol selection: select the serial interface protocol: I2C and SMBUS interface. RegConfig(0x00), bit 5. Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 10 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING USER GUIDE Figure 9. Configuration panel Mode selection: Determines the chip main features. RegConfig(0x00), bits 4:0. Figure 10. Mode selection 3.2.2. Sensors selection panel The sensor can be enabled or disabled in this panel with the checkbox control. The panel display the latest temperature measurement. The color of the sensor identify the sensor on the graphs. Figure 11. Sensors selection panel Sensor selection. RegSensor(0x22), bits 3:0 Tj: if enabled, Internal PN junction will be scanned in sequence. TD1: if enabled, External PN junction 1 will be scanned in sequence. TD2: if enabled, External PN junction 2 will be scanned in sequence. TD3: if enabled, External PN junction 3 will be scanned in sequence. When a diode fault is detected, the information “Fault” is displayed on the temperature case. Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 11 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING USER GUIDE 3.2.3. Resistance track cancellation Figure 12. Resistance track cancellation The resistance track cancellation of the chip can be set if the mode allows this. The 3-wires track cancellation requires a specific hardware not implemented on the EVK. Read the datasheet to get more details. 3 wires track compensation: enables 3 Point track cancellation if the mode allows this. RegControl(0x30), bit 2 Algorithmic track compensation: enables 3 Level track cancellation if the mode allows this. RegControl(0x30), bit 1 3.2.4. Output code format Figure 13. Output code format Output code format: selects the temperature offset mode representation. RegControl(0x30), bit 3 3.2.5. Alarms pin active level Figure 14. Alarms pin active level Chip alarm pin active level: defines the alarms polarity. RegAlarmSet(0x25), bit 6 3.2.6. Alarms Depending of the set mode, the chip can provide two alarm outputs: AL1 and AL2. If these pins are connected to the FTDI the alarm status can be displayed in the GUI. If the external or internal temperature exceeds or goes under a programmed temperature thresholds, the alarm is activated Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 12 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING USER GUIDE Figure 15. Alarm selection Source: select the sensor to monitor. RegAlarmSet(0x25), bits 3:2 and 1:0 Trigger: defines the direction of the alarms triggers. Over or under temperature. RegAlarmSet(0x25), bit 5 Hysteresis: defines the alarms hysteresis with 1°C resolution. RegAlarmHyst(0x26), bits 7:0 Threshold: defines the temperature threshold for Alarm 1 and Alarm 2 with 1°C resolution. RegAlarm1(0x23), bits 7:0; RegAlarm2(0x24), bits 7:0 Status: a green LED on the GUI is lighted to show the alarm event when enabled. Alarm pins must be connected to the FTDI with 0 Ohm resistors according to the selected mode. See the board schematic. 3.2.7. Conversion rate Figure 16. Conversion rate Conversion rate: defines temperature sampling rate. RegAdcRate(0x27), bits 2:0 3.2.8. Data acquisition Figure 17. Data acquisition Conversion mode: the acquisition can be made in “One Shot” or in “Continuous” modes. This is not possible to select both options in the same time, and at least one option must be enabled an written in the chip to enable the Display panel. The Regular button starts the data polling. The Stop button stops continuous conversion. The One shot buttons start only one conversion. OneShot: RegAdcRate(0x27), bit 4, Continuous: RegAdcRate(0x27), bit 3 Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 13 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 USER GUIDE ADVANCED COMMUNICATIONS & SENSING 3.3. Temperature display Figure 18. Temperature display The graphic area provides the plots of the selected sensor temperatures against the time. If the selected modes have alarm, the alarm threshold and hysteresis are plotted on the graph with the color corresponding to the selected sensor. It is possible to use the contextual menu available by a right click on the graph to access several options (save image, print and scale). Figure 19. Graph contextual menu The mouse enables more scaling functions on the graph. This is sum-up in the Table 3. Mouse pointer Set-up Click + move Drawing a square on the graph resize the temperature scale to the selection. Scroll wheel Done on the graph, zoom in/out the temperatures axis Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 14 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING Ctrl + click Table 3 USER GUIDE Done on the graph when moving the mouse, it shift the temperature axis. Mouse function on the graph 4. Troubleshooting 4.1. ERROR: Unable to open SX8000EV126 device If the message “ERROR: Unable to open SX8000EV126 device” is displayed in the status bar. Check the following points: The board is connected to USB and the USB cable is connected to the computer The switch S1 is ON The board is supplied: the red LED D1 should be ON 4.2. ERROR: Unable to send a general call reset If the message “ERROR: Unable to send a general call reset” is displayed in the status bar, follow the instructions below until the message disappear. The jumper W1 should be set on the USB position The jumper W2 should be set. Click on the disconnect button on the GUI Switch OFF and ON the board and click the connect button on the GUI Check that the device is well soldered 4.3. Sensor fault If the sensor temperature display “Fault” then check the following points: The device selected is the one soldered on the board The hardware configuration is set to support the selected mode as seen on the schematics The resistance R1 to R6 are 0 Ohm and well soldered. The reference of the sensor used should be MMBT3906 Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 15 www.semtech.com SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING USER GUIDE 5. Board overview Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 16 www.semtech.com 3 4 5 3V Regulated Voltage Source 6 Source Voltage Selection Q1 MMBT3906 1 2 VDD 3VREG B C E 5V USB 7 R1 8 P1 Res3 0R U1 1 C8 Cap Semi 0.1uF Cap Semi 0.1uF Cap Semi 10uF vin vout 5 ctrl 2 gnd GND byp VEXT LP2985IM5-3.0V GND S1 3 4 5V USB 3VREG R5 R7 1K 1 2 C7 Cap Semi 10nF 5 Jumper 3 pins B 6 SW-2POS GND P2 Res3 0R W1 C6 Cap Semi 1uF 4 VG R2 D1 LED2 VCC FTDI 3 C5 Cap Semi 1uF 2 C4 C E C3 GND A P3 Res3 0R Q2 MMBT3906 1 R6 3 5V USB A 3 VCC FTDI P4 Res3 0R FTDI USB to I2C/SPI Gateway Mini USB Connector VCC FTDI C9 6 GND 1 2 3 4 R11 27R R12 7 27R 5 R14 VCC FTDI Mini USB Type-B C11 Cap Semi 10nF C12 Cap Semi 47pF C13 Cap Semi 47pF 5 4 43 R16 Res3 1M 2 Page 17 GND GND 44 48 1 2 47 3 GND 1.5K Y1 GND GND 8 33nF Ceramic resonator 3 pin FTDI EEPROM GND Optional, function of GUI requirements VREG U3 8 C14 100nF 6 7 5 C GND VCC CS SCL ORG DU D GND Q M93C46WMN6 R20 1 2 41 USBDM USBDP RSTOUT# RESET# XTIN 4 ACBUS0 ACBUS1 ACBUS2 ACBUS3 SI/WUA XTOUT EECS EESK EEDATA TEST BCBUS0 BCBUS1 BCBUS2 BCBUS3 SI/WUB PWREN# 3 R19 ADBUS0 ADBUS1 ADBUS2 ADBUS3 ADBUS4 ADBUS5 ADBUS6 ADBUS7 BDBUS0 BDBUS1 BDBUS2 BDBUS3 BDBUS4 BDBUS5 BDBUS6 BDBUS7 24 23 22 21 20 19 17 16 R10 Pull up 10K SMBCLK SMBDAT R13 1 2 3 4 Header 4 470R LED2 D3 15 13 12 11 10 B P1 P4 P3 P2 P1 VDD D2 R15 470R P2 LED1 R17 Res3 10K 40 39 38 37 36 35 33 32 VDD_CHIP SMBDAT SMBCLK R18 Res3 10K ALARM_1 ALARM_2 1 2 3 4 Header 4 GND 45 18 25 34 9 VCC FTDI 30 29 28 27 26 3V3OUT AVCC VCC VCC VCCIOA VCCIOB VBUS DD+ x SHLD GND 1 9 8 7 6 R9 Pull up 10K U2 FT2232D F1 J1 B P4 Res3 0R 46 3 42 14 31 Cap Semi 100nF R4 ALARM_2 VDD GND C10 P3 Res3 0R AGND GND GND GND GND Ferrite 5V USB R3 ALARM_1 VDD R8 Res3 470R ADVANCED COMMUNICATIONS & SENSING 2 6. Schematics Revision 1.0 / May 2010 ©2010 Semtech Corp. 1 Decoupling Capacitors 10K C GND 10K VDD_CHIP VDD_CHIP W2 VDD_CHIP P1 C17 100nF VEXT P3 1 2 Multi-connect Jumper C22 P2100pF C18 100nF GND U6 1 P1 P4 P2 VSS 2 7 VSS 1 2 VDD 6 VDD_CHIP 1 P2 VDD_CHIP 5 GND GND SMBDAT 3 Multi-connect SMBDAT SMBCLK 4 SMBCLK P3 2 P2 3 P1 4 GND D C20 P2100pF C21 P4100pF C16 100nF SX8733 VDD_CHIP 1 U7 VDD P3 SMBCLK SMBDAT P2 P4 P1 VSS VDD_CHIP 8 SMBCLK P3 7 SMBDAT P2 6 P4 P1 5 2 3 4 P1 P3 C1 P2100pF C2 P4100pF GND U5 VDD C19 P2100pF GND SMBCLK P3 SMBDAT P2 P4 P1 VSS SX8743 Socket MSOP8 for SX8743 GND P1 C15 100nF VDD_CHIP 1 8 SMBCLK 7 SMBDAT 6 P4 P1 2 P2 3 5 4 U4 VDD SMBCLK P1 SMBDAT P2 P4 NC VSS SX8744 GND 8 SMBCLK 7 SMBDAT 6 P4 5 D GND Title Size www.semtech.com Date: File: 1 Number Revision A3 pcb_e128v02a 2 3 4 5 6 4/3/2009 U:\users\..\SX8733_EVK_v2.SchDoc 7 Sheet of Drawn By: 8 USER GUIDE SX8000EV126 Evaluation Kit for SX8733, SX8743 and SX8744 SX8000EV126 Probe GND connection P3 GND GND P1 P1 Evaluation Tool for SX8733/43/44 VDD VDD_CHIP External source voltage SX8000EV126 Evaluation Tool for SX8733/43/44 ADVANCED COMMUNICATIONS & SENSING PRELIMINARY USER GUIDE © S e m te c h 2 0 1 0 A ll rig h ts re s e rv e d . R e p ro d u c tio n in w h o le o r in p a rt is p ro h ib ite d w ith o u t th e p rio r w ritte n c o n s e n t o f th e c o p y rig h t o w n e r. T h e in fo rm a tio n p re s e n te d in th is d o c u m e n t d o e s n o t fo rm p a rt o f a n y q u o ta tio n o r c o n tra c t, is b e lie v e d to b e a c c u ra te a n d re lia b le a n d m a y b e c h a n g e d w ith o u t n o tic e . N o lia b ility w ill b e a c c e p te d b y th e p u b lis h e r fo r a n y c o n s e q u e n c e o f its u s e . P u b lic a tio n th e re o f d o e s n o t c o n v e y n o r im p ly a n y lic e n s e u n d e r p a te n t o r o th e r in d u s tria l o r in te lle c tu a l p ro p e rty rig h ts . S e m te c h a s s u m e s n o re s p o n s ib ility o r lia b ility w h a ts o e v e r fo r a n y fa ilu re o r u n e x p e c te d o p e ra tio n re s u ltin g fro m m is u s e , n e g le c t im p ro p e r in s ta lla tio n , re p a ir o r im p ro p e r h a n d lin g o r u n u s u a l p h y s ic a l o r e le c tric a l s tre s s in c lu d in g , b u t n o t lim ite d to , e x p o s u re to p a ra m e te rs b e y o n d th e s p e c ifie d m a x im u m ra tin g s o r o p e ra tio n o u ts id e th e s p e c ifie d ra n g e . S E M T E C H P R O D U C T S A R E N O T D E S IG N E D , IN T E N D E D , A U T H O R IZ E D O R W A R R A N T E D T O B E S U IT A B L E F O R U S E IN L IF E -S U P P O R T A P P L IC A T IO N S , D E V IC E S O R S Y S T E M S O R O T H E R C R IT IC A L A P P L IC A T IO N S . IN C L U S IO N O F S E M T E C H P R O D U C T S IN S U C H A P P L IC A T IO N S IS U N D E R S T O O D T O B E U N D E R T A K E N S O L E L Y A T T H E C U S T O M E R ’S O W N R IS K . S h o u ld a c u s to m e r p u rc h a s e o r u s e S e m te c h p ro d u c ts fo r a n y s u c h u n a u th o riz e d a p p lic a tio n , th e c u s to m e r s h a ll in d e m n ify a n d h o ld S e m te c h a n d its o ffic e rs , e m p lo y e e s , s u b s id ia rie s , a ffilia te s , a n d d is trib u to rs h a rm le s s a g a in s t a ll c la im s , c o s ts d a m a g e s a n d a tto rn e y fe e s w h ic h c o u ld a ris e . A ll re fe re n c e d b ra n d s , p ro d u c t n a m e s , s e rv ic e n a m e s a n d tra d e m a rk s a re th e p ro p e rty o f th e ir re s p e c tiv e o w n e rs . Contact information Semtech Corporation Advanced Communications & Sensing Products E-mail: [email protected]@semtech.comInternet: http://www.semtech.com USA 200 Flynn Road, Camarillo, CA 93012-8790. Tel: +1 805 498 2111 Fax: +1 805 498 3804 FAR EAST 12F, No. 89 Sec. 5, Nanking E. Road, Taipei, 105, TWN, R.O.C. Tel: +886 2 2748 3380 Fax: +886 2 2748 3390 EUROPE Semtech Ltd., Units 2 & 3, Park Court, Premier Way, Abbey Park Industrial Estate, Romsey, Hampshire, SO51 9DN. Tel: +44 (0)1794 527 600 Fax: +44 (0)1794 527 601 ISO9001 CERTIFIED Revision 1.0 / May 2010 ©2010 Semtech Corp. Page 18 www.semtech.com