Using the LM3279 Evaluation Board
Contents
1. VBATT 2 7V to 5 5V C2 1 i J D pF LM3279 VCON C3 EN 10 VIO HF GPO0 SDATA GPO1 SCLK DGND SGND PGND Y RF GND RF Control Bits Note C1 C2 C5 and C6 are optional Figure 2 Analog Circuit L1 1 54 H VBATT 2 7V to 5 5V C1 C2 NL J 220pF C3 10uF C8 0 47 uF T RF GND Note C1 C2 C5 and C6 are optional SNOUO93 MARCH 2013 LM3279 Evaluation Board 3 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated I TEXAS INSTRUMENTS Bill of Materials for LM3279 Evaluation Board www ti com 5 Bill of Materials for LM3279 Evaluation Board Table 1 LM3279 BOM Designator Description Value Part Number Manufacturer C3 CIN 10 uF CL05106MQ5NUNC Samsung C7 COUT i L1 Inductor 1 5 uH DFE201610C1ROM TOKO Table 2 Optional High Frequency and PA Decoupling Capacitors Designator Description Value Part Number Manufacturer C1 C5 High Freq Input Cap 1nF GRM022R60J102KE19 C2 CIN GRMO22R71A221KA01 220 pF C6 COUT Murata C8 0 47 UF GRM033R60J474MA01 C9 Emulates PA decoupling input capacitor n n Not populated ot populate R1 Z pop 6 RFFE Communication The LM3279 Evaluation Board is designed to connect to the LM8335 EVM Configuration and control of the LM3279 is performed using the LM3279 Evaluation GUI Software provided on the included CD ROM Refer to Appendix A Software User Manual for the2. Bits Name Description 7 Reserved Reserved bit Default 0 6 0 VSET CTRL 6 0 DCDC voltage control bits Vae cra_ 00h puts the part into a low power mode Veer cra 02h puts the part in a standby mode V er cra OBh corresponds to 0 4V and 75h corresponds to 4 212V 01h STATE CTRL Bits Name Description 7 6 STATE CTRL 1 0 PWM PFM state control bits 00b Force PFM 01b PWM if Vour lt 1 5 default 10b PWM if Vour lt 2 1 and lour lt 100 mA 11b Force PWM 5 0 Reserved 02h GPO_CTRL Bits Name Description 7 GPOO GPOO control bit Ob Output set to low level default 1b Output set to high level 6 GPO1 GPO control bit Ob Output set to low level default 1b Output set to high level 03h 1Bh RESERVED Bits Name Description Reserved registers for configuration test and trim 1Ch PM_TRIG Bits Name Description 7 6 PWR MODE 1 0 Power Mode Bits 00b normal operation 01b default settings 10b low power 11b reserved 5 0 TRIG_REG 5 0 Reserved for trigger bits LM3279 Evaluation Board SNOU093 MARCH 2013 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated 1 TEXAS INSTRUMENTS 1Dh PRODUCT_ID Bits Name Description 7 0 PRODUCT_ID 7 0 Product identification bits Set to AOh 1Eh MANUFACTURER ID Bits Name Description 7 0 MANUFACTURER ID 7 0 Manufacturer Identification bits 7 0 1Eh are LSB for TI 1Fh USID Bits Name Description 7 6 S
3. Instruments Incorporated IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries Tl reserve the right to make corrections enhancements improvements and other changes to its semiconductor products and services per JESD46 latest issue and to discontinue any product or service per JESD48 latest issue Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete All semiconductor products also referred to herein as components are sold subject to Tl s terms and conditions of sale supplied at the time of order acknowledgment TI warrants performance of its components to the specifications applicable at the time of sale in accordance with the warranty in Tl s terms and conditions of sale of semiconductor products Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty Except where mandated by applicable law testing of all parameters of each component is not necessarily performed Tl assumes no liability for applications assistance or the design of Buyers products Buyers are responsible for their products and applications using TI components To minimize the risks associated with Buyers products and applications Buyers should provide adequate design and operating safeguards TI does not warrant or represent that any license either express or implied is granted under any patent righ
4. LM3279 Evaluation GUI Software installation instructions 7 Evaluation Board Layout Lna278 REV A PGNDI sux SCLK SH2ss UOUT J4 20 pin connector SDATA SCLK SDATA VIO and GND connect to P2X board VIO Left side of J4 Right side of J4 configures the f configures the Analog side of the f Digital side of LM3279 the LM3279 Figure 3 Photo of LM3279 Evaluation Board 4 LM3279 Evaluation Board SNOU093 MARCH 2013 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated 1 TEXAS INSTRUMENTS www ti com Evaluation Board Layout RESET button LM8335 EUM EE USB connects to PC Er Pin 1 GND Pin 7 SCLK Pin 9 SDATA Pin 11 VIO Al c12 Figure 4 LM8335 RFFE Interface Evaluation Module 7 1 CONNECTIONS 1 VIN is connected to the red PVIN and black PGND1 banana connector pins 2 The load RL or PA is connected to the yellow VOUT1 and black PGND2 Output banana connector pins 3 Connect PC USB Port to the LM8335 J1 using a micro USB Type B Cable Note The LM8335 EVM is powered by the PC thru the USB cable 4 Connect the 4 wire Pin RFFE Interface Cable from LM8335 J2 to LM3279 Eval Board J4 and align SDATA SCLK VIO and GND for Digital Implementation Note Left side of J4 connector configures the part into an Analog state and the right side for the connector configures the device into Digital implementation 5 Refer to Analog
5. and Digital implementation description for the LM3279 below in the Startup Sequence section SNOUO93 MARCH 2013 LM3279 Evaluation Board Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated I TEXAS INSTRUMENTS Evaluation Board Layout www ti com 7 2 LM3279 Schematic C10 PGND2 XXuF DNI C8 C9 0 47uF 0 47uF 0201 0201 PGND PGND PGND PGND1 1 PGND c5 1nF 1nF 220pF 10uF 01005 3528 0402 01005 0402 PGND PGND PGND PGND PGND PGND R2 DNI i PGND PGND PGND PVIN C11 DNI 0402 SCLK SDATA VIO 4 g 5 PGND mE RO GPO1 R1 GPO0 PGND PGND PGND PGND Figure 5 LM3279 PCB Schematic 6 LM3279 Evaluation Board SNOU093 MARCH 2013 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated 1 TEXAS INSTRUMENTS www ti com LM3279 PCB Layout and Layers LM3279 PCB Layout and Layers LM3279 CPUIN REV A p PUIN PGND1 201 0 g J4 Cl 0 0 O O NS Bs A o o amp ujsc NG E 0 gisoara 200 gluo 9 Figure 7 Mid Layer 1 SNOUO93 MARCH 2013 Figure 9 Bottom Layer LM3279 Evaluation Board 7 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated Programmable Registers 9 8 Programmable Registers I TEXAS INSTRUMENTS www ti com ADDRESS REGISTER CONTENTS 00h VSET_CTRL
6. m me si le brouillage est susceptible d en compromettre le fonctionnement Concernant les EVMs avec antennes d tachables Conform ment la r glementation d Industrie Canada le pr sent metteur radio peut fonctionner avec une antenne d un type et d un gain maximal ou inf rieur approuv pour l metteur par Industrie Canada Dans le but de r duire les risques de brouillage radio lectrique l intention des autres utilisateurs il faut choisir le type d antenne et son gain de sorte que la puissance isotrope rayonn e quivalente p i r e ne d passe pas l intensit n cessaire l tablissement d une communication satisfaisante Le pr sent metteur radio a t approuv par Industrie Canada pour fonctionner avec les types d antenne num r s dans le manuel d usage et ayant un gain admissible maximal et l imp dance requise pour chaque type d antenne Les types d antenne non inclus dans cette liste ou dont le gain est sup rieur au gain maximal indiqu sont strictement interdits pour l exploitation de l metteur Important Notice for Users of this Product in Japan This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan you are required by Radio Law of Japan to follow the instructions below with respect to this product 1 Use this product in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Intern
7. 3 R4 and R5 making SDATA SCLK VIO forced Low 9 Power up VIN within the VIN range of 2 7V to 5 5V 10 Set VCON pin voltage to desired voltage 0 2 to 1 4V 11 Set EN RO GPO1 and R1 GPOO to the desired logic levels then VOUT should present as expected e SNOUO093 MARCH 2013 LM3279 Evaluation Board 11 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated 1 TEXAS INSTRUMENTS Appendix A Software User Manual www ti com 12 6 GUI SOFTWARE CONFIGURATION Connect with RFFE Interface Figure 10 Startup Window for Initializing GUI Control Access OPEN Seriak 5443934626001600 Control and Operating Modes igi PWR_MODE J Normal operation Figure 11 Programming GUI Window 12 LM3279 Evaluation Board SNOU093 MARCH 2013 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated EVALUATION BOARD KIT MODULE EVM ADDITIONAL TERMS Texas Instruments TI provides the enclosed Evaluation Board Kit Module EVM under the following conditions The user assumes all responsibility and liability for proper and safe handling of the goods Further the user indemnifies TI from all claims arising from the handling or use of the goods Should this evaluation board kit not meet the specifications indicated in the User s Guide the board kit may be returned within 30 days from the date of delivery for a full refund THE FOREGOING LIMITED WARRANTY IS T
8. HE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED IMPLIED OR STATUTORY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES Please read the User s Guide and specifically the Warnings and Restrictions notice in the User s Guide prior to handling the product This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please visit www ti com esh or contact TI No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine process or combination in which such TI products or services might be or are used TI currently deals with a variety of customers for products and therefore our arrangement with the user is not exclusive Tl assumes no liability for applications assistance customer product design software performance or infringement of patents or services described herein REGULATORY COMPLIANCE INFORMATION As noted in the EVM User s Guide and or EVM itself this EVM and or accompanying hardware may or may not be subject to the Federal Communications Commission FCC and Industry Canada IC rules For EVMs not subject to the above rules this evaluation b
9. PARE 1 0 This is a read only register that is reserved and yields a value of 00b at readback Potentially used in future for extending manufacturer ID field 5 4 MANUFACTURER_ID 5 4 Manufacturer identification bits 5 4 01h are MSB for TI 3 0 USID 3 0 Unique Slave Identifier default 0101b 10 Connection Diagram Top View Bottom View SNOUO093 MARCH 2013 LM3279 Evaluation Board 9 Submit Documentation Feedback Copyright O 2013 Texas Instruments Incorporated Pin Descriptions 11 10 Pin Descriptions I TEXAS INSTRUMENTS www ti com Pin Name Description A SCLK Digital control interface DCON RFFE Bus clock input Typically connected to RFFE master on RF or Baseband IC SCLK must be held low when VIO is not applied B1 SDATA Digital control interface DCON RFFE Bus data input output Typically connected to RFFE master on RF or Baseband IC SDATA must be held low when VIO is not applied Digital control interface DCON 1 8V supply input VIO functions as the RFFE interface reference C1 VIO voltage VIO also functions as reset and enable input to LM3279 Bypass capacitor should be connected between VIO and GND Typically connected to voltage regulator controlled by RF or Baseband IC When VIO HIGH EN shall be connected to GND D1 DGND Digital Ground Multipurpose GPIO When VIO HIGH GPOO is a general purpose output for configuring RF f
10. Using the LM3279 Evaluation Board User s Guide I TEXAS INSTRUMENTS Literature Number SNOU093 MARCH 2013 All trademarks are the property of their respective owners User s Guide l ho MENTIS SNOUO093 MARCH 2013 LM3279 Evaluation Board 1 Introduction The LM3279 evaluation board is a working demonstration of a buck boost DC DC converter designed to generate output voltages above or below a given input voltage particularly suitable for cell phone applications powering 3G 4G Power Amplifiers as well as other portable devices For more details and electrical characteristics about the converter operation please refer to the LM3279 datasheet If you are considering using the LM3279 in a system design please see the PCB Layout Considerations section of the device data sheet 2 Operating Conditions The board will operate under the following conditions Vy range 2 7V lt Vy lt 5 5V Adjustable Voy RFFE Digital Control 0 4V to 4 2V Analog Control 0 6V to 4 2V e VCON range 0 2V to 1 4V Vout equation Voy 3 x VCON loy range 1A Max for Vg 2 3 2V 3 Package The LM3279 is available in an 16 bump lead free DSBGA package 2 LM3279 Evaluation Board SNOU093 MARCH 2013 Submit Documentation Feedback Copyright O 2013 Texas Instruments Incorporated 13 TEXAS INSTRUMENTS www ti com Typical Application Circuits 4 Typical Application Circuits Figure 1 RFFE Digital Circuit L1 1 5 uH
11. al Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use this product only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product or 3 Use of this product only after you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to this product Also please do not transfer this product unless you give the same notice above to the transferee Please note that if you could not follow the instructions above you will be subject to penalties of Radio Law of Japan Texas Instruments Japan Limited address 24 1 Nishi Shinjuku 6 chome Shinjuku ku Tokyo Japan http www tij co jp ZEATE T FAREY Mx EEXEXS AEERB E SE UT CU UA ARMOCPAICRL CIE BREBTOL HO LFOUTHAOBBEM TULE DEFEN ETN CCHRB lt K EE 1 BRAT RUSSE ARS CET XE RLI8ES H28 AMBER 81738 CEOSHLEREESO MBM C C BRI TIE IE 2 SERIO SEREEBUS C BRIU IEEE 3 RN R RIENREMS RCHARUEEX sa Ami buio TEAC TORA EHE BEAIBALZURY BE B T SUEDELRT Re FEU AUS BRAM RAAB AS Na NEEND eE TAERE BATEYA FYAYIDXYYRASE Raw ie XM 6 TA 24815 ME HEIL http www tij co jp EVALUATION BOARD KIT MODULE EVM WARNINGS RESTRICTIONS AND DISCLAIMERS For Feasibility Evaluation Only in Laboratory Development Environments Unless otherwise indicated this EVM is not a finished elec
12. ements in connection with such use TI has specifically designated certain components as meeting ISO TS16949 requirements mainly for automotive use In any case of use of non designated products TI will not be responsible for any failure to meet ISO TS16949 Products Applications Audio www ti com audio Automotive and Transportation www ti com automotive Amplifiers amplifier ti com Communications and Telecom www ti com communications Data Converters DLP Products DSP Clocks and Timers Interface Logic Power Mgmt Microcontrollers RFID OMAP Applications Processors Wireless Connectivity dataconverter ti com www dlp com www ti com clocks interface ti com logic ti com microcontroller ti com www ti rfid com www ti com omap Computers and Peripherals Consumer Electronics Energy and Lighting Industrial Medical Security Space Avionics and Defense Video and Imaging TI E2E Community www ti com wirelessconnectivity www ti com computers www ti com consumer apps www ti com energy www ti com industrial www ti com medical www ti com security www ti com space avionics defense www ti com video Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2013 Texas Instruments Incorporated
13. ion For EVMs annotated as FCC FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant Caution This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment FCC Interference Statement for Class A EVM devices This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protect
14. ion against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help For EVMs annotated as IC INDUSTRY CANADA Compliant This Class A or B digital apparatus complies with Canadian ICES 003 Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Concerning EVMs including radio transmitters This device complies with Industry Canada licence exempt RSS standard s Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operati
15. ns related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failures monitor failures and their consequences lessen the likelihood of failures that might cause harm and take appropriate remedial actions Buyer will fully indemnify TI and its representatives against any damages arising out of the use of any TI components in safety critical applications In some cases TI components may be promoted specifically to facilitate safety related applications With such components TI s goal is to help enable customers to design and create their own end product solutions that meet applicable functional safety standards and requirements Nonetheless such components are subject to these terms No TI components are authorized for use in FDA Class III or similar life critical medical equipment unless authorized officers of the parties have executed a special agreement specifically governing such use Only those TI components which TI has specifically designated as military grade or enhanced plastic are designed and intended for use in military aerospace applications or environments Buyer acknowledges and agrees that any military or aerospace use of TI components which have not been so designated is solely at the Buyer s risk and that Buyer is solely responsible for compliance with all legal and regulatory requir
16. oard kit module is intended for use for ENGINEERING DEVELOPMENT DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer use It generates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio frequency interference Operation of the equipment may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required to correct this interference General Statement for EVMs including a radio User Power Frequency Use Obligations This radio is intended for development professional use only in legally allocated frequency and power limits Any use of radio frequencies and or power availability of this EVM and its development application s must comply with local laws governing radio spectrum allocation and power limits for this evaluation module It is the user s sole responsibility to only operate this radio in legally acceptable frequency space and within legally mandated power limitations Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental development licenses from local regulatory authorities which is responsibility of user including its acceptable authorizat
17. og supply is internally connected to PVIN B4 PVIN Power MOSFET input and power current input pin Typically connected to VBATT Optional low pass filtering may help buck and buck boost modes for radiated EMI and noise reduction C4 SW1 Switch pin for Internal Power Switches M1 and M2 Connect inductor between SW1 and SW2 D4 PGND Power Ground for Power MOSFETs and gate drive circuitry LM3279 Evaluation Board SNOU093 MARCH 2013 Submit Documentation Feedback Copyright 2013 Texas Instruments Incorporated l TEXAS INSTRUMENTS www ti com Appendix A Software User Manual 12 12 1 12 2 12 3 12 4 12 5 Appendix A Software User Manual INTRODUCTION This manual instructs a user how to set up and begin operating the LM8335 board which is a RFFE interface allowing communication to the LM3279 eval board from a PC GENERAL INFORMATION The RF Front End Control Interface later referred to as RFFE was developed to offer a common and widespread method for controlling RF front end devices There are a variety of front end devices including Power Amplifiers PA Low Noise Amplifiers LNA filters switches power management modules antenna tuners and sensors These functions may be located either in separate devices or integrated into a single device depending on the application MIPI amp Alliance Specification for RFFE This allows users to be able to control more than one device using a maste
18. on of the device Concerning EVMs including detachable antennas Under Industry Canada regulations this radio transmitter may only operate using an antenna of a type and maximum or lesser gain approved for the transmitter by Industry Canada To reduce potential radio interference to other users the antenna type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Cet appareil num rique de la classe A ou B est conforme la norme NMB 003 du Canada Les changements ou les modifications pas express ment approuv s par la partie responsable de la conformit ont pu vider l autorit de l utilisateur pour actionner l quipement Concernant les EVMs avec appareils radio Le pr sent appareil est conforme aux CNR d Industrie Canada applicables aux appareils radio exempts de licence L exploitation est autoris e aux deux conditions suivantes 1 l appareil ne doit pas produire de brouillage et 2 l utilisateur de l appareil doit accepter tout brouillage radio lectrique subi
19. our use of the EVM will not result in any property damage injury or death even if the EVM should fail to perform as described or expected 4 You will take care of proper disposal and recycling of the EVM s electronic components and packing materials Certain Instructions It is important to operate this EVM within TI s recommended specifications and environmental considerations per the user guidelines Exceeding the specified EVM ratings including but not limited to input and output voltage current power and environmental ranges may cause property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and intended loads Any loads applied outside of the specified output range may result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Please consult the EVM User s Guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 60 C as long as the input and output are maintained at a normal ambient operating temperature These components include but are not limited to linear regulators switching transistors pass transistors and current sense resistors which can be identified using
20. r and multiple slaves ITEMS NEEDED 1 LM8335 Evaluation Board https estore ti com LM8335EVM General Purpose Output Expander with MIPI RFFE Host Interface Evaluation Module P4279 aspx LM3279 evaluation board Micro USB B cable PC with USB port available GUI executable program download from the web and 4 wire cable to connect from the LM8335 board to LM3279 board op amp w D GUI INTERFACE EXECUTABLE AND DOWNLOAD 1 Run the GUI interface executable and download onto computer Note Microsoft NET Framework software is required and must be downloaded from Microsoft STARTUP SEQUENCE 1 For Digital Control Place the EN pin of the LM3279 Low from the 20 pin connector J4 and leave the GPOO R1 1 RO pins floating Connect and align the SDATA SCLK VIO and GND pins together from the LM8335 board refer to Figure 3 and Figure 4 2 Power up VIN within the VIN range of 2 7V to 5 5V Start the LM3279 GUI Software 4 A window will appear Figure 10 click OPEN to establish connectivity between the LM3279 stand alone eval board and the LM8335 board 5 Another window will appear Figure 11 with the programmable registers of the LM3279 6 Click VIO On to enable the device Make sure that VIO 1 8V on the LM3279EVM on VIO header 7 Configure the Output voltage Mode and mode of operation for LM3279 to desired configuration refer to Figure 11 8 For Analog Control Place OQ resistors to R
21. ront A2 GPOO end circuitry When the GPOO control bit in Register 02 is set to 1 the output is driven to a 1 8V VIO high logic level and the output is pulled to a low logic level when the GPOO control bit is set to 0 When EN HIGH RO input Gain state control pin of RF PA input has an internal pullup resistor B2 VCON Voltage Control Analog input When EN HIGH VCON controls the output voltage in PWM and PFM modes When in digital control VCON can be left as no connect or conneted to system ground c2 FB Feedback input to inverting input of error amplifier Connect output voltage directly to this node at load point D2 VOUT Regulated output voltage of LM3279 Connect this to a 10 uF ceramic output filter capacitor to GND Multipurpose GPIO When VIO HIGH GPO1 is a general purpose output for configuring RF front A3 GPO1 end circuitry When the GPO1 control bit in Register 02 is set to 1 the output is driven to a 1 8V VIO high logic level and the output is pulled to a low logic level when the GPO1 control bit is set to 0 When EN HIGH R1 input Gain state control pin of RF PA input has an internal pullup resistor B3 EN Enable Pin Pulling this pin higher than 1 2V enables part to function in analog control mode VIO must be tied to ground C3 SGND Signal Ground for analog circuits and control circuitry D3 SW2 Switch pin for Internal Power Switches M3 and M4 Connect inductor between SW1 and SW2 A4 SVIN SVIN is no connect Anal
22. t copyright mask work right or other intellectual property right relating to any combination machine or process in which TI components or services are used Information published by TI regarding third party products or services does not constitute a license to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties conditions limitations and notices TI is not responsible or liable for such altered documentation Information of third parties may be subject to additional restrictions Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice Tl is not responsible or liable for any such statements Buyer acknowledges and agrees that it is solely responsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applicatio
23. the EVM schematic located in the EVM User s Guide When placing measurement probes near these devices during normal operation please be aware that these devices may be very warm to the touch As with all electronic evaluation tools only qualified personnel knowledgeable in electronic measurement and diagnostics normally found in development environments should use these EVMs Agreement to Defend Indemnify and Hold Harmless You agree to defend indemnify and hold TI its licensors and their representatives harmless from and against any and all claims damages losses expenses costs and liabilities collectively Claims arising out of or in connection with any use of the EVM that is not in accordance with the terms of the agreement This obligation shall apply whether Claims arise under law of tort or contract or any other legal theory and even if the EVM fails to perform as described or expected Safety Critical or Life Critical Applications If you intend to evaluate the components for possible use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death such as devices which are classified as FDA Class III or similar classification then you must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement Mailing Address Texas Instruments Post Office Box 655308 Dallas Texas 75265 Copyright O 2012 Texas
24. trical equipment and not intended for consumer use It is intended solely for use for preliminary feasibility evaluation in laboratory development environments by technically qualified electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components systems and subsystems It should not be used as all or part of a finished end product Your Sole Responsibility and Risk You acknowledge represent and agree that 1 You have unique knowledge concerning Federal State and local regulatory requirements including but not limited to Food and Drug Administration regulations if applicable which relate to your products and which relate to your use and or that of your employees affiliates contractors or designees of the EVM for evaluation testing and other purposes 2 You have full and exclusive responsibility to assure the safety and compliance of your products with all such laws and other applicable regulatory requirements and also to assure the safety of any activities to be conducted by you and or your employees affiliates contractors or designees using the EVM Further you are responsible to assure that any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard 3 You will employ reasonable safeguards to ensure that y
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