LMX9820ASM NSC [National Semiconductor], LMX9820ASM Datasheet
LMX9820ASM
Related parts for LMX9820ASM
LMX9820ASM Summary of contents
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LMX9820A Bluetooth Serial Port Module ® 1.0 General Description The National Semiconductor LMX9820A Bluetooth Serial Port module is a highly integrated radio, baseband control- ler, and memory device implemented on an FR4 substrate. All hardware and firmware is included to ...
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... Features Bluetooth version 1.1 qualified Implemented in CMOS technology on FR4 substrate Temperature Range: -40°C to +85°C FCC certified on LMX9820ADONGLE, FCC ID ED9LMX9820ASM. 3.1 DIGITAL HARDWARE Baseband and Link Management processors CompactRISC Core Integrated Memory: – Flash – RAM UART Command/Data Port: – Support for up to 921.6k baud rate Auxiliary Host Interface Ports: – ...
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General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 APPLICATIONS . . . . . . ...
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... RF GND 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 LMX9820ASM LMX9820ASMX www.national.com PI1_ RF_CE_TP11 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 Pad Name 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 LMX9820A firmware) Pad Pad Name Location USB_VCC F12 USB_D+ ...
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Pad Descriptions (Continued) Pad Pad Name 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 Pad Pad Name Direction Location AAI_srd B10 AAI_std B12 AAI_sfs C11 Input/Output AAI_sclk C12 ...
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Pad Descriptions (Continued) 1. Treat as no connect. Pad required for mechanical stability. Table 8. Power, Ground, and No Connect Signals Pad Pad Name Location NC A1, A2, A3, A4, A5, A6, A7, A9, B1, C1, D1, D13, E1, ...
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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 LMX9820A. Because any noise coupled into these supplies can have influence on the radio perfor- Symbol Parameter I Power supply current for continuous transmit CC-TX ...
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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 0.92. • All tests are measured at antenna port unless otherwise specified Table ...
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Electrical Specifications 4. The f = -64 dBm Bluetooth modulated signal and | MHz, in which For the ...
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Electrical Specifications 1. Frequency accuracy is dependent on crystal oscillator chosen. The crystal must have a cumulative accuracy of <20 ppm to meet Bluetooth specifications. 2. Not tested in production. 3. Frequency accuracy is dependent on crystal oscillator chosen. ...
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Electrical Specifications m2 freq = 2.402 GHz S(1.1) = 0.093/-29.733 impedance = Z0* (1.170 - j0.109) m1 freq = 2.500 GHz S(1.1) = 0.035/175.614 impedance = Z0* (0.933 + j0.005) Figure 8. TX and RX Pin 50 Impedance Characteristics ...
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Functional Description 7.0 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 16-bit processor and the Bluetooth Lower Link Controller. These processors operate from ...
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Functional Description 7.2 MEMORY The LMX9820A includes 256KB of programmable Flash memory that can be used for code and constant data. It allows single-cycle read access from the CPU. In addition to storing all algorithms and firmware, the on-board ...
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Functional Description 7.5 AUDIO PORT Advanced Audio Interface The Advanced Audio Interface (AAI advanced ver- sion of the Synchronous Serial Interface (SSI) that pro- vides a full-duplex communications port to a variety of industry-standard 13/14/15/16-bit linear or ...
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Digital Smart Radio (Continued) 8.0 Digital Smart Radio 8.1 FUNCTIONAL DESCRIPTION The integrated Digital Smart Radio uses a heterodyne re- ceiver architecture with a low intermediate frequency (2 MHz), such that the intermediate frequency filters can be in- tegrated ...
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Digital Smart Radio (Continued) pendent of input waveform duty cycle or amplitude varia- tions. Loop lockup occurs when all the negative transitions on the inputs, F_REF and F_MOD, coincide. Both outputs (i.e., Up and Down) then remain high. This ...
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Digital Smart Radio (Continued Figure 11. Crystal Equivalent Circuit Revision 1.0 2. Crystal Pullability L1 Pullability is another important parameter for a crystal, which is the change in frequency of a crystal with units of ppm/pF, ...
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Digital Smart Radio (Continued) TEW Crystal The LMX9820A has been tested with the TEW TAS-4025A crystal, see Table 21 on page 20 for specification. Because the internal capacitance of the crystal circuit and the load capacitance ...
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Digital Smart Radio (Continued) Figure 12. Frequency Offset with 12 pF/12 pF Capacitors Figure 13. Frequency Offset with 10 pF/10 pF Capacitors 8.7.2 TCXO (Temperature Compensated Crystal Oscillator) The LMX9820A also can operate with an external TCXO (Temperature Compensated ...
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Digital Smart Radio (Continued) 8.7.3 ESR (Equivalent Series Resistance) LMX9820A can operate with a wide range of crystals with different ESR ratings. Reference Table 24 on page 22 and Figure 14 on page 22 for more details. Parameter External ...
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System Power-Up Sequence 9.0 System Power-Up Sequence The following sequence must be performed to correctly power-up the LMX9820A: 1. Apply IOVCC and VCC to the LMX9820A. VCC t IOVCC Reset_b# Low Reset_5100 Low BBP_CLOCK High TX_RX_DATA Low TX_RX_SYNC Low ...
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Integrated Firmware 10.0 Integrated Firmware The LMX9820A includes the full Bluetooth protocol stack up to RFComm to support the following profiles: — GAP (Generic Access Profile) — SDAP (Service Discovery Application Profile) — SPP (Serial Port Profile) Figure 16 ...
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Integrated Firmware Table 26. Operation Parameters Stored in LMX9820A Parameter BDADDR (Hardcoded 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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Power Reduction (Continued) 11.0 Power Reduction The LMX9820A supports several low-power modes to reduce power in different operating situations. The modular structure of the LMX9820A allows the firmware to power down unused modules. The low-power modes have influence on: ...
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Command Interface (Continued) 12.0 Command Interface The LMX9820A offers Bluetooth functionality through either a self-contained slave functionality or a simple com- mand interface. The interface is carried over the UART interface. The following sections describe the protocol on the ...
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Command Interface (Continued) 12.2 COMMAND SET OVERVIEW The LMX9820A has a well-defined command set to: • Configure the device: – Hardware settings – Local Bluetooth parameters – Service database • Set up and handle links Command Inquiry Inquiry Complete ...
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Command Interface (Continued) Command 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 Mode ...
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Command Interface (Continued) Table 37. SPP Port Configuration and Status Commands Command Set Port Config Set Port Config Confirm Get Port Config Get Port Config Confirm Port Config Changed SPP Get Port Status SPP Get Port Status Confirm SPP ...
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Command Interface (Continued) Table 39. Local Service Database Configuration Commands Command Store SPP Record Store SPP Record Confirm Store DUN Record Store DUN Record Confirm Store FAX Record Store FAX Record Confirm Store OPP Record Store OPP Record Confirm ...
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Usage Scenarios (Continued) 13.0 Usage Scenarios 13.1 SCENARIO 1: POINT-TO-POINT CONNECTION LMX9820A acts only as slave, no further configuration is required. Example: Sensor with LMX9820A; hand-held device with standard Bluetooth option. Sensor Device UART Connected on Port L Microcontroller ...
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Usage Scenarios (Continued) 13.2 SCENARIO 2: AUTOMATIC POINT-TO-POINT CONNECTION LMX9820A 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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Usage Scenarios (Continued) 13.3 SCENARIO 3: POINT-TO-MULTIPOINT CONNECTION LMX9820A acts as master for several slaves. Example: Two sensors with LMX9820A; one hand-held master device with LMX9820A. Serial Devices #2 and #3 establish the link automatically as soon as they ...
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Application Information 14.0 Application Information Figure 22 on page 35 represents a typical system sche- matic for the LMX9820A. 14.1 MATCHING NETWORK The antenna matching network may or may not be required, depending upon the impedance of the antenna ...
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Application Information www.national.com (Continued) Figure 23. Component Placement (Layer 1) 36 Revision 1.0 ...
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Application Information Revision 1.0 (Continued) Figure 24. Solid Ground Plane (Layer 2) Figure 25. Signal Plane (Layer 3) 37 www.national.com ...
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Application Information www.national.com (Continued) Figure 26. Component Layout Bottom (Layer 4) 38 Revision 1.0 ...
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Soldering (Continued) 15.0 Soldering The LMX9820A bumps are designed to melt as part of the Surface Mount Assembly (SMA) process. The LMX9820A is assembled with a high-temperature solder alloy to ensure there are no re-reflow conditions imposed upon the ...
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Soldering (Continued) Peak Min. Profile # (°C) (°C) 1 213.9 32.8 2 206.7 31.1 www.national.com Max. Max. Time Rising Rising Falling Between Time Slope Slope 130°C/ 130°C (s) (°C/s) (°C/s) 160°C (s) 2.50 -1.60 208.01 109.00 2.41 -1.73 213.01 ...
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Physical Dimensions 16.0 Physical Dimensions NOTES: PAD PITCH IS 1.00 MILLIMETER (.0394”) NON-ACCUMULATIVE. UNLESS OTHERWISE SPECIFIED, ALL DIMENSIONS ARE IN MILLIMETER. TOLERANCE, UNLESS OTHERWISE SPECIFIED: TWO PLACE (.00): ±.01 THREE PLACE (.000): ±.002 ANGULAR: ±1° Revision 1.0 (Continued) Figure ...
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Datasheet Revision History 17.0 Datasheet Revision History This section is a report of the revision/creation process of the datasheet for the LMX9820A. Table 42 provides the Datasheet Status Product Status Advance Information Formative or in Design Preliminary First Production ...
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Datasheet Revision History Revision # (PDF Date) 1.0 draft 1 (March 2005) Updated Power consumption Table 12 1.0 draft 2 (April 2005) No functional Update 1.0 draft 3 (April 2005) Updated C/I in Table 14 1.0 (April 2005) No ...
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National 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. For the most current product information ...