lmx9820sbx National Semiconductor Corporation, lmx9820sbx Datasheet
lmx9820sbx
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lmx9820sbx Summary of contents
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... SW RADIO PA SYNTHESIZER CRYSTAL/OSCILLATOR CompactRISC is a trademark of National Semiconductor Corporation. Bluetooth is a trademark of Bluetooth SIG, Inc. and is used under license by National Semiconductor. © 2004 National Semiconductor Corporation The firmware supplied within this device offers a complete Bluetooth (v1.1) stack including profiles and command interface. This firmware features point-to-point and point- to-multipoint link management supporting data rates up to the theoretical maximum over RFComm of 704 kbps ...
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Features Bluetooth version 1.1 qualified Implemented in CMOS technology on LTCC substrate. Temperature Range: -40° +85°C 3.1 DIGITAL HARDWARE Baseband and Link Management processors CompactRISC Core Integrated Memory: – Flash – RAM UART Command/Data Port: – Support ...
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General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 APPLICATIONS . . . . . . ...
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... RF GND RF GND GND RF GND RF GND GND RF GND RF GND H NC VCC TX_ Switch_P J NC VDD_ANA_OUT NC VDD_DIG_PWR_D# Order Number LMX9820SB LMX9820SBX www.national.com PI1_ RF_CE_TP11 clock RF GND RF GND RF GND Clk- RF GND RF GND RF GND Tx_rx_ data RF GND RF GND RF GND ...
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Pad Descriptions Pad Name Pad Direction Location Clk- B8 Clk+ B9 32kHz_CLKI B13 32kHz_CLKO C13 RF_inout H8 Input/Output ISEL2 H13 ISEL1 J13 Table 3. USB Interface Signals (Not supported by lmx9820 firmware) Pad Name Pad Location USB_VCC F12 USB_D+ ...
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Pad Descriptions (Continued) Pad Name Pad Location IOVCC H12 Reset_b# G8 Reset_5100# D11 Lstat_0 E8 Lstat_1 F8 Host_wu F9 Env0 E9 Env1 B11 TX_Switch_P H3 Table 6. Audio Port Interface Signals (not supported by LMX9820 Firmware) Pad Name Pad ...
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Pad Descriptions (Continued) Pad Name Pad Location PH3_TP9 F13 PH2_TP8 G13 1. Treat as No Connect, Pad required for mechanical stability. Table 8. Power, Ground, and No Connect Signals Pad Name Pad Location NC A1, A2, A3, A4, A5, ...
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Electrical Specifications 6.1 GENERAL SPECIFICATIONS Absolute Maximum Ratings (see Table 9) indicate limits beyond which damage to the device may occur. Operating Ratings (see Table 10) indicate conditions for which the device is intended to be functional. This device ...
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Electrical Specifications NOTE: The voltage regulators are optimized for the internal operation of the LMX9820. As any noise or coupling into those can have influence on the radio performance Symbol Parameter I Power supply current for continous ...
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Electrical Specifications 6.3 RF PERFORMANCE CHARACTERISTICS In the performance characteristics tables the following applies: • All tests performed are based on Bluetooth Test Specifi- cation rev 0.91. Table 14. Receiver Performance Characteristics Symbol Parameter 2 Receive Sensitivity RX sense ...
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Electrical Specifications Table 15. Transmitter Performance Characteristics Symbol Parameter 2 Transmit Output Power P RF OUT Power Density Power Density MOD F1 Modulation Characteris- AVG tics 3 Modulation Characteris- MOD F2 MAX tics 4 Modulation Characteris ...
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Electrical Specifications Table 17. Crystal/Oscillator Performance Characteristics Symbol Parameter f Crystal Oscillator Frequency OSC 1 Frequency Accuracy f ACC t Oscillator Turn-On Time OSC-ON V Oscillator Input Voltage OSC ESR Equivalent Series Resis- tance D Duty Cycle CYCLE P ...
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Electrical Specifications -2 -4 IL(dB - 2.1 E+09 2.1E+09 m2 freq=2.402ghz S(1.1)=0.093/-29.733 impedance = Z0* (1.170 - j0.109) m1 freq=2.500ghz S(1.1)=0.035/175.614 impedance = Z0* (0.933 + j0.005) Figure 8. TX and RX Pin 50 Impedance ...
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Functional Description 7.1 BASEBAND AND LINK MANAGEMENT PROCESSORS Baseband and Lower Link control functions are imple- mented using a combination of National Semiconductor’s CompactRISC ...
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Flash also contains the IEEE 802 compliant Media Access Con- troller (MAC) address (BDADDR). The firmware and the BDADDR are programmed by National Semiconductor or can be programmed by the customer either ...
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Digital Smart Radio The LMX9820 Digital Smart Radio includes a high perfor- mance, monolithic, radio transceiver optimized for Blue- tooth communications systems. The radio transceiver is a highly integrated design and includes the Low Noise Amplifier (LNA), mixer, on-chip ...
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Crystal load capacitance (C the following Ct1//Ct2 L int The C above does not include the crystal internal self- L capacitance C0 as shown in Figure 11 on page 17, so the total capacitance is: ...
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Digital Smart Radio (Continued) Figure 12. Frequency Offset with Capacitors www.national.com 18 ...
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Digital Smart Radio (Continued) Figure 13. Frequency Offset with 9 pF//10 pF Capacitors 8.13.2 TCXO (Temperature Compensated Crystal Oscillator) The LMX9820 also can operate with an external TCXO (Temperature Compensated Crystal Oscillator). The TCXO signal is directly connected to ...
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System Power-Up Sequence In order to correctly power-up the LMX9820 the following sequence must be performed: Apply IOVCC and VCC to the LMX9820. VCC tPTOR IOVCC Reset_b# Low Reset_5100# Low BBP_CLOCK High TX_RX_DATA Low TX_RX_SYNC Low CCB_DATA Low CCB_CLOCK ...
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Integrated Firmware The LMX9820 includes the full Bluetooth stack up to RFComm to support the following profiles: • GAP (Generic Access Profile) • SDAP (Service Discovery Application Profile) • SPP (Serial Port Profile) Figure 15 shows the Bluetooth protocol ...
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Table 25. Operation Parameters Stored in LMX9820 Parameter Default Value BDADDR (Hard coded into Device) Local Name Serial port device PinCode 0000 Operation Mode Automatic Default Connections 0 SDP Database 1 SPP entry: Name: COM1 Authentication and encryption enabled UART ...
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Low Power Modes The LMX9820 supports different Low Power Modes to reduce power in different operating situations. The modular structure of the LMX9820 allows the firmware to power down unused modules. The Low power modes have influence on: • ...
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Command Interface The LMX9820 offers Bluetooth functionality in either a self contained slave functionality or over a simple command interface. The interface is listening on the UART interface. The following sections describe the protocol transported on the UART interface ...
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COMMAND SET OVERVIEW The LMX9820 has a well defined command set to: • Configure the device: – Hardware settings – Local Bluetooth parameters – Service database • Set up and handle links Command Event Inquiry Inquiry Complete Device Found ...
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Command Interface (Continued) Command Event Set Default Link Policy Set Default Link Policy Confirm Get Default Link Policy Get Default Link Policy Confirm Set Link Policy Set Link Policy Confirm Get Link Policy Get Link Policy Confirm Enter Sniff ...
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Command Interface (Continued) Table 36. Local Bluetooth Settings (Continued) Command Event Write Local Name Write Local Name Confirm Read Local BDADDR Read Local BDADDR Confirm Change Local BDADDR Change Local BDADDR Confirm Store Class of Device Store Class of ...
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Command Interface (Continued) Command Event Set Event Filter Set Event Filter Confirm Get Event Filter Get Event Filter Confirm Read RSSI Read RSSI Confirm Change UART Speed Change UART Speed Confirm Change UART Settings Change UART Settings Confirm Test ...
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Usage Scenarios 13.1 SCENARIO 1: POINT-TO-POINT CONNECTION LMX9820 acts only as slave, no further configuration is required. Example: Sensor with LMX9820; hand-held device with standard Bluetooth option. Sensor Device UART Connected on Port L Microcontroller No Bluetooth™ commands necessary ...
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Usage Scenarios (Continued) 13.2 SCENARIO 2: AUTOMATIC POINT-TO-POINT CONNECTION LMX9820 at both sides. Example: Serial Cable Replacement. Device #1 controls the link setup with a few commands as described. Serial Device #1 1. Devices in Range? Inquiry Inquiry Result ...
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SCENARIO 3: POINT-TO-MULTIPOINT CON- NECTION LMX9820 acts as master for several slaves. Example: Two sensors with LMX9820; one hand-held device with implemented LMX9820. Serial Devices #2 and #3 establish the link automatically as soon as they are contacted by ...
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Application Information Figure 21 on page 32 represents a typical system sche- matic for the LMX9820. 14.1 MATCHING NETWORK The antenna matching network may or may not be required, depending upon the impedance of the antenna chosen. A 6.8pF ...
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Application Information Revision 1.0 (Continued) Figure 22. Component Placement - Layer 1 33 www.national.com ...
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Application Information www.national.com (Continued) Figure 23. Solid Ground Plane - Layer 2 Figure 24. Signal Plane - Layer 3 34 ...
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Application Information Revision 1.0 (Continued) Figure 25. Component Layout Bottom - Layer 4 35 www.national.com ...
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Soldering The LMX9820 bumps are designed to melt as part of the Surface Mount Assembly (SMA) process. The LMX9820 is assembled with a high temperature solder alloy to ensure there are no re-reflow conditions imposed upon the module when ...
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Soldering (Continued) Profile Peak Min # 1 213.9 32.8 2 206.7 31.1 Revision 1.0 Max Max Rising Time Rising Falling Time 130 Between Slope Slope 130/160 2.50 -1.60 208.01 109.00 2.41 -1.73 213.01 121.01 Figure 26. Typical Reflow Profiles ...
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... Specifications may change in any manner without no- tice. This datasheet contains preliminary data. Supplementary data will be published at a later date. National Semiconductor Corporation reserves the right to make changes at any time without notice in order to improve design and supply the best possible product.S This datasheet contains final specifications ...
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Datasheet Revision History Section Revisions / Comments General • Section "General Description" on page 1 updated Description – Text Description updated – Features Updated – Physical dimension changed to (10.1mm x 14.0mm x 1.9mm) Pad Description • Table 2 ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL 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 ...