Texas Instruments LMX9838 Bluetooth Serial Port Module User Manual

Texas Instruments Inc. Bluetooth Serial Port Module

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www.national.com 2LMX9838DONGLE Hardware User Guide3.0 Qualification■FCC certified: — FCC ID: ED9LMX9838■FCC compliance (see Section 13.0): The device com-plies with Part 15 of FCC Rules. Operation is subject to the following two conditions:— This device may not cause harmful interference— This device must accept any interference received, including interference that may cause undesired operation■IC certified:— IC: 1520A-LMX9838■Bluetooth SIG QD ID: B0123944.0 Requirement and Setup4.1 BASIC REQUIREMENT■X86 PC with serial port.■One of the following operating system is required.— Windows 2000—Windows XP4.2 APPLICATION SOFTWARE4.2.1 Simply Blue CommanderApplication command oriented tool to generate commandsand watch events in the Simply Blue Command interfacewindow. Reference the Simply Blue Commander UserGuide document for details.4.2.2 SBSmartEasy to use Windows based tool to demonstrate additionalprofile support of the Simply Blue functionality. Referencethe SBSmart User Guide for additional details.4.2.3 Patch ProgrammingLMX9838 allows for patch programming for firmwareupdate if necessary. Reference the LMX9838 SW UserGuide document for details. This can also be done with theSimply Blue Commander and SBSmart tools.5.0 Functional Description5.1 POWER SUPPLY■DC Power Jack (6V max)■Battery Holder (6V max)5.2 MAIN SYSTEM■Reset button for manual Reset■Jumper option for Baud rate selection5.3 UART INTERFACEDB9 connector for RS232 standard PC interface using On-board level shifter IC for handling LMX9838 module’s 3.3VUART interface.5.4 ADVANCE AUDIO INTERFACE ■Support Audio applications■PCM codec interface (support linear and A-law)■PCM Master or Slave operation (SW configurable)■Direct connection to Sedona Lite Board (A-law only)Figure 2. System Block Diagram

3 www.national.comLMX9838DONGLE Hardware User Guide6.0 Design Consideration6.1 POWER MANAGEMENT■3.3V output single LDO is used to provide power for RS232 interface chip and Digital portion of the LMX9838.7.0 Layout ConsiderationThe LMX9838 reference design is split into 2 sections, onesection is RS232 transceiver circuit for PC connection,another section is LMX9838 main circuit for Host proces-sor. (Figure 3)7.1 PCB REQUIREMENT■2 layers PCB required■1 mm overall thickness7.2 LAYERS CLASSIFICATION■Top layer is the components and main signals layer■Bottom layer is interface signals and ground plane■RF circuit requirement■Large ground plane with ground via’s is must for good RF performance8.0 AUDIO CODEC BoardSedona Lite Board contains an audio codec and two phonejacks. This board can be used in conjuction withLMX9838DONGLE to realize the audio (SCO) transmis-sion and reception capabilities. (See Table 9)9.0 Board components and Pin As-signmentsA summary of the configuration and selection jumpers isprovided in the tables that follow. Reference both the sche-matic and PCB layout (included on the CD in the kit) Table 1 Major Components ListDevice DescriptionU1 National LMX9838 Serial Port Module - Refer-ence the device datasheet.U3 National LP3985 Low-Dropout Voltage Regula-torU2 Maxim MAX3225 1 Mbps High Speed UART DriverTable 2 Connectors SummaryConnector Description DetailsJ7 Battery Connector 2mm pitch Maximum input volt-age is 6VJ6 DC jack Same as aboveJ8 DP9 serial connec-tor (male) See Table 5J5 External processor interface See Table 6J4 Advance Audio interface See Table 7Table 3 Jumper and Test Point SummaryJumper / Test Point Description DetailsJ1, J2 and J3 Clock & UART set-ting jumper See Table 8Table 4 Switch and LEDsSwitch/LED DescriptionS1 Reset buttonD1 Operation StatusD2 Data Traffic (TX/RX)Table 5 J8 DP9 (male) Pin AssignmentsPin # Signal name Description1 NC No connection2 RxD Receive Data (input)3 TxD Transmit Data (output)4 NC No connection5 GND Ground6 NC No connection7 RTS Ready to send (output)8 CTS Clear to send (input)9 NC No connection

www.national.com 4LMX9838DONGLE Hardware User GuideTable 6 J5 External Processor InterfacePin # Signal name Description1 POWER_D# ON/OFF control of LMX98382 VCC LDO output (3.3V)3 GND Ground4 TXD Transmit Data (output)5 CTS# Clear to send (input)6 RXD Receive Data (input)7 RTS# Ready to send (output)8 VCC_CORE_IN 1.8V voltage regulator input/out-put9 RESET# Reset (input)Table 7 J4 Advance Audio InterfacePin # Signal name Description1VCC LDO output (3.3V)2SCLK Advanced Audio Interface Clock3STD Advanced Audio Interface Transmit Data4SFS Advanced Audio Interface Frame Synchronization5SRD Advanced Audio Interface Receive Data6GND GroundTable 8 UART interface settingJ2 J3 J1 UART baud rateShort Short Short 921600bpsShort Open Short 115200bps(default)Open Short Short 9600bpsOpen Open Short NVS (Default 9600bps)Table 9 J4 (Audio CODEC Board)Pin # Signal name Description1Vcc 3.3V Input2SCLK PCM Clock3STD PCM Input Data4SFS PCM Frame Synchronization5SRD PCM Output Data6GND GroundTable 10 Audio ConnectionP17 For PC MicrophoneP15 For PC HeadphoneFigure 3. Top view of Reference board

5 www.national.comLMX9838DONGLE Hardware User Guide10.0 Bill of materials (Reference Board)11.0 Bill of Materials (Sedona Lite Board)Item Name Description Vendor Part NumberC5,C6 Capacitor 22p 0603 C0G 50V MuRata GRM39C0G220J50C1,C3,C8, C10 Capacitor 100n 0603 Y5V 50V MuRata GRM39Y5V104Z50C2,C4,C7 Capacitor 2u2F 0603 Y5V 10V MuRata GRM39Y5V225Z10C9 Capacitor 100p 0603 C0G 50V MuRata GRM39C0G101J50C11,C12 TANT CAP 1uF 16V SIZE A AnyC13,C14,C15,C16,C17 Capacitor 1uF 1206 X7R 25V MuRata GRM42-6X7R105K25C19 Capacitor 1uF 0603 Y5V 10V MuRata GRM39Y5V105Z10J7 Battery holder (2mm pitch) AnyS1 TACK SWITCH TS-1135HS RAINBOWY1 Tuning fork crystal 32.768KHz AnyJ6 DC POWER JACK Morning star limited DC-015D1 Red Color LED 0603 Size AnyD2 Blue Color LED 0603 Size AnyJ8 DB9 (male) serial connector AnyJ4 2mm Socket (6 poles) AnyU1 Bluetooth SPP Micro Module National Semiconductor LMX9838SMU3 Low Dropout Regulator National Semiconductor LP3985IM5X-3.3U2 High Speed RS232 Transceivers Maxim MAX3225EEAP+R1,R2,R3 Resistor 0603 Size, 1K AnyR11,R12 Resistor 0603 Size, 10K AnyR6,R7,R8,R9,R13,R14,R17 Resistor 0603 Size, 0R AnyR4,R5 Resistor 0603 Size, 330R AnyJ3,J10 2mm header AnyJ1,J2 2mm header (with jumper) AnyItem Name Description Vendor Part NumberC3,C4,C5,C6 Capacitor 100nF Any Ceramic capC6 Capacitor 1uF Any Ceramic capC12 TANT CAP 10uF, 10V AnyC40 TANT CAP 47uF, 6.3V AnyC11 Not mountJ1 2mm socket (6 poles) AnyJ2 2.54mm socket (2 x 4 poles) AnyP15 Socket for speaker (mono) Morning Star MSJ-1537P17 Socket for microphone (mono) Morning Star MSJ-1537R10 Resistor 0402 Size, 10R AnyR13,R14 Resistor 0402 Size, 1K AnyR5,R22 Resistor 0402 Size, 4.7K Any

www.national.com 6LMX9838DONGLE Hardware User Guide12.0 References■LMX9838 Bluetooth Serial Port Module data sheet■LMX9838 Bluetooth Serial Port Module - Software Users Guide■SBSmart user guideR3 Resistor 0402 Size, 10K AnyR4,R8,R9 Resistor 0402 Size, 47K AnyU2 Single Rail Codec OKI MSM7717-01MS-KItem Name Description Vendor Part NumberFigure 4. Sedona Board

7 www.national.comLMX9838DONGLE Hardware User Guide13.0 Appendix: FCC instructions13.1 SAFETY INFORMATION FOR RF EXPOSURE13.1.1 FCC Radiation Exposure Statement:This equipment complies with FCC radiation exposure lim-its set forth for an uncontrolled environment. End usersmust follow the specific operating instructions for satisfyingRF exposure compliance.This device is intended only form OEM integrators underthe following conditions:1. The antenna must be installed such that 20cm is main-tained between the antenna and users;and2. The transmitter module may not be co-located with anyother transmitter or antenna.IMPORTANT NOTE: In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authoriza-tion is no longer considered valid and the FCC ID can notbe used on the final product. In these circumstances, theOEM integrator will be responsible for re-evaluating theend product (including the transmitter) and obtaining a sep-arate FCC authorization.13.1.2 End Product LabelingThis transmitter module is authorized only for use indevices where the antenna may be installed such that 20cm may be maintained between the antenna and users.The final end product must be labeled in visible area withthe following:“Contains TX FCC ID: ED9LMX9838”13.1.3 End Product Manual InformationThe user manual for end users must include the followinginformation in a prominent location:“IMPORTANT NOTE:To comply with FCC RF exposure compliance require-ments, the antenna used for this transmitter must beinstalled to provide a separation distance of at least 20cmfrom all persons and must not be co-located or operating inconjunction with any other antenna or transmitter.”13.2 RADIO FREQUENCY INTERFERENCE STATEMENT13.2.1 INFORMATION TO THE USERNOTE : This equipment has been tested and found to com-ply with the limits for a Class B digital device pursuant toPart 15 of the FCC Rules.These limits are designed to provide reasonable protectionagainst harmful Interference in a residential installationThis equipment generates, uses, and can radiate radio fre-quency energy and, if Not installed and used in accordancewith the instructions, may cause harmful Interference toradio communications. However, there is no guarantee thatinterference will not occur in a particular Installation. If thisequipment does cause harmful interference to radio or tele-vision reception, which can be determined by turning theequipment off and on, the user is encouraged to try to cor-rect the interference by one or more of the following mea-sures:■Reorient or relocate the receiving antenna.■Increase the separation between the equipment and re-ceiver.■Connect the equipment into an outlet of a circuit different from that to which the receiver is connected.■Consult the dealer or an experienced radio/TV techni-cian for assistance.Changes or modification not expressly approved by theparty responsible for Compliance could void the user’sauthority to operate the equipment. Connecting of periph-erals requires the use of grounded shielded signal cables.13.2.2 FCC Compliance InformationThis device complies with Part 15 of FCC Rules.Operation is subject to the following two conditions:1) This device may not cause harmful interference, and2) This device must accept any interference received,including interference that may cause undesired operation.

LMX9838DONGLE Designer GuideNational does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.LIFE SUPPORT POLICYNATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORTDEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERALCOUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user.2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to af-fect its safety or effectiveness.National Semiconductor CorporationTel: 1-800-272-9959Fax: 1-800-737-7018Email: support@nsc.comNational Semiconductor EuropeFax: +49 (0) 180-530 85 86Email: europe.support@nsc.comDeutsch Tel: +49 (0) 69 9508 6208English Tel: +44 (0) 870 24 0 2171Francais Tel: +33 (0) 1 41 91 8790National SemiconductorJapan Ltd.Tel: 81-3-5639-7560Fax: 81-3-5639-7507www.national.com National SemiconductorAsia Pacific Customer Response GroupTel: 65-254-4466Fax: 65-250-4466Email: ap.support@nsc.comBANNED SUBSTANCE COMPLIANCENational Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products StewardshipSpecification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no “BannedSubstances” as defined in CSP-9-111S2.Leadfree products are RoHS compliant.

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