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Bluetooth® Serial Port Micro Module


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This training module is to introduce the LMX9830 Blutooth® module.

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Bluetooth® Serial Port Micro Module

  1. 1. Bluetooth ® Serial Port Micro Module <ul><li>Source: National Semiconductor </li></ul>
  2. 2. Introduction <ul><li>Purpose </li></ul><ul><ul><li>This training module is to introduce the LMX9830 Blutooth ® module. </li></ul></ul><ul><li>Outline </li></ul><ul><ul><li>The features of the LMX9830 module </li></ul></ul><ul><ul><li>The operation of the LMX9830 module </li></ul></ul><ul><ul><li>Usage Scenarios </li></ul></ul><ul><li>Content </li></ul><ul><ul><li>19 pages </li></ul></ul>
  3. 3. Bluetooth Wireless Technology <ul><li>A short-range communication system is intended to replace the cable connecting portable and/or fixed electronic devices. </li></ul><ul><li>The key features are robustness, low power, and low cost. </li></ul><ul><li>The Bluetooth system consists of </li></ul><ul><ul><li>An RF transceiver </li></ul></ul><ul><ul><li>Baseband controller </li></ul></ul><ul><ul><li>Protocol stack </li></ul></ul><ul><li>The Bluetooth operates in the unlicensed ISM band at 2.4 GHz. </li></ul><ul><li>The Bluetooth core system covers the four lowest layers and associated protocols. </li></ul><ul><li>The Bluetooth can support up to 3 Mbps transfer speed. </li></ul>
  4. 4. Simply Blue Family <ul><li>Simply Blue products are designed to greatly simplify the design of Bluetooth wireless systems. </li></ul><ul><li>Simply Blue can be used to exchange information between a wide range of computer and communication systems. </li></ul><ul><li>Each module in the Simply Blue family includes: </li></ul><ul><ul><li>a complete embedded Bluetooth protocol stack </li></ul></ul><ul><ul><li>application specific profiles </li></ul></ul><ul><ul><li>a high-level command interpreter </li></ul></ul>
  5. 5. Overview of LMX9830 <ul><li>The LMX9830 is a highly integrated Bluetooth 2.0 baseband controller. </li></ul><ul><li>It provides a complete solution from antenna through the complete lower and upper layers of the Bluetooth stack. </li></ul><ul><li>Key features: </li></ul><ul><ul><li>Easy to use high level command set – for fast application integration </li></ul></ul><ul><ul><li>Configurable UART speed up to 921.6 kbps </li></ul></ul><ul><ul><li>Very high data throughput over SPP </li></ul></ul><ul><ul><li>Point-to-multipoint piconet support </li></ul></ul><ul><ul><li>Output power Class 2 </li></ul></ul><ul><ul><li>Receiver sensitivity – 81 dBm </li></ul></ul><ul><ul><li>Low power consumption </li></ul></ul>
  6. 6. LMX9830 Device Bluetooth Address <ul><li>Bluetooth Device Address (BD_ADDR) Structure. </li></ul><ul><li>The LMX9830 is ROM-based, therefore cannot be preprogrammed with a BD_ADDR. </li></ul><ul><li>The BD_ADDR is preloaded in an EEPROM or downloaded by the host application. </li></ul>Example
  7. 7. Functional Block Diagram
  8. 8. Baseband and Link Manager <ul><li>Bluetooth Lower Link Controller </li></ul><ul><ul><li>Adaptive Frequency Hopping </li></ul></ul><ul><ul><li>Interlaced Scanning </li></ul></ul><ul><ul><li>Fast Connect </li></ul></ul><ul><ul><li>Support for 1, 3, and 5 slot packet types </li></ul></ul><ul><ul><li>79 Channel hop frequency generation circuitry </li></ul></ul><ul><ul><li>Fast frequency hopping at 1600 hops per second </li></ul></ul><ul><ul><li>Power management control </li></ul></ul><ul><ul><li>Access code correlation and slot timing recovery </li></ul></ul><ul><li>Bluetooth Upper Layer Stack includes L2CAP, RFComm, and SDP. </li></ul><ul><li>The SPI and Access bus (I 2 C) are used to connect an external EEPROM. </li></ul>
  9. 9. UART Transport Port <ul><li>The UART interface consists of </li></ul><ul><ul><li>Receive (RX) </li></ul></ul><ul><ul><li>Transmit (TX) </li></ul></ul><ul><ul><li>Ready-to Send (RTS) </li></ul></ul><ul><ul><li>Clear-to-Send </li></ul></ul><ul><li>The UART interface supports formats of 8-bit data with one or two stop bits. </li></ul>UART Operation Mode
  10. 10. Audio Port <ul><li>Audio data to be transported over the Bluetooth link will be handled through the Advanced Audio Interface (AAI), without any interaction required from the host. </li></ul><ul><li>The audio interface supports PCM master or slave operation. </li></ul><ul><ul><li>Master operation is used with typical codecs </li></ul></ul><ul><ul><li>Slave operation allows the flexible combination with DSPs or other host controllers. </li></ul></ul>LMX9830
  11. 11. Digital Smart Radio <ul><li>Receiver Front-End </li></ul><ul><ul><li>Low-noise Amplifier & two mixers: receives signal from Antenna and delivers balanced IQ signals to BPF. </li></ul></ul><ul><ul><li>Poly-Phase Bandpass Filter: rejects noise and spurious interference </li></ul></ul><ul><ul><li>Hard-Limiter and RSSI: measures and control the level of the RF input signal </li></ul></ul><ul><li>Receiver Back-End </li></ul><ul><ul><li>Frequency Discriminator: generates phase-shifted signal from I- an Q-path </li></ul></ul><ul><ul><li>Post-Detection Filter and Equalizer: helps for attenuating the first adjacent channel signal & improves the eye-opening for 101010 patterns </li></ul></ul><ul><li>Autotuning Circuitry: is used for tuning the bandpass filter, the detector, the post-detection filter, the equalizer, and the transmit filters for process and temperature variations. </li></ul><ul><li>Synthesizer </li></ul><ul><ul><li>Phase-Frequency Detector: responds only to transitions </li></ul></ul><ul><li>Transmitter Circuitry </li></ul><ul><ul><li>IQ-DA Converters and TX Mixers </li></ul></ul>
  12. 12. Operation Modes <ul><li>Automatic Operation </li></ul><ul><ul><li>The module is connectable and discoverable and automatically answers to service requests. </li></ul></ul><ul><li>Non-Automatic Operation </li></ul><ul><ul><li>The LMX9830 does not check the default connections section within the Data RAM. </li></ul></ul><ul><li>Transparent Mode </li></ul><ul><ul><li>The LMX9830 supports transparent data communication from the UART interface to a bluetooth link. </li></ul></ul><ul><li>Force Master Mode </li></ul><ul><ul><li>After successful link establishment the LMX9830 will be Master and available for additional incoming links. </li></ul></ul>
  13. 13. Low Power Mode <ul><li>UART transport layer </li></ul><ul><ul><li>By default, UART transport layer is enabled on device power up. </li></ul></ul><ul><ul><li>The host is able to switch off the transport layer in order to reduce power consumption. </li></ul></ul><ul><ul><li>Waking up the transport layer can be done from either the Host or the LMX9830. </li></ul></ul><ul><li>Bluetooth Baseband activity </li></ul><ul><ul><li>Active Link(s): Bluetooth radio and baseband handling active link </li></ul></ul><ul><ul><li>Page/Inquiry Scanning: scanning, discoverable/connectable for other devices </li></ul></ul><ul><ul><li>No Radio activity: no active link and scanning switched off </li></ul></ul>
  14. 14. Command Interface <ul><li>Command Package Format </li></ul><ul><li>Command Set </li></ul><ul><ul><li>Configure device </li></ul></ul><ul><ul><li>Set up and handle links </li></ul></ul>
  15. 15. Point-to-Point Connection
  16. 16. Automatic Point-to-Point Connection
  17. 17. Point-to-Multipoint Connection
  18. 18. Evaluation Kits <ul><li>The kits includes </li></ul><ul><ul><li>LMX9830 Bluetooth serial adapter reference board </li></ul></ul><ul><ul><li>Bluetooth USB Dongle and application software stack (another device to connect to) </li></ul></ul><ul><ul><li>Null modem cable </li></ul></ul><ul><ul><li>Audio codec Board - Sedona Lite board </li></ul></ul><ul><ul><li>110V to 240V AC to 5V DC power adapter and pigtail </li></ul></ul><ul><ul><li>CDROM with design documents and Simply Blue software Application tools. (Simply Blue Commander and Simply Blue Smart </li></ul></ul>
  19. 19. Additional Resource <ul><li>For ordering the LMX9830 module, please click the part list or </li></ul><ul><li>Call our sales hotline </li></ul><ul><li>For additional inquires contact our technical service hotline </li></ul><ul><li>For more product information go to </li></ul><ul><ul><li> </li></ul></ul>Newark Farnell