LMX9838DONGLE National Semiconductor, LMX9838DONGLE Datasheet
LMX9838DONGLE
Specifications of LMX9838DONGLE
Related parts for LMX9838DONGLE
LMX9838DONGLE Summary of contents
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... Bluetooth data links and one active SCO link. 3.0 Functional Block Diagram Bluetooth ® registered trademark of Bluetooth SIG, Inc. and is used under license by National Semiconductor Corporation. CompactRISC ® registered trademark of National Semiconductor Corporation. © 2007 National Semiconductor Corporation The on-chip Patch RAM provided for lowest cost and risk, al- lows the flexibility of firmware upgrade ...
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Applications • Telemedicine/Medical, Industrial and Scientific • Personal Digital Assistants • POS Terminals • Data Logging Systems • Audio Gateway applications 5.0 Device Details 5.1 HARDWARE • Baseband and Link Management processors based on Nationals CompactRISC Core • Embedded ...
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Connection Diagram 8.0 Pad Description Pad Name Pad Location Type OP3 16 I OP4: I OP4/PG4 26 PG4 OP5 25 I/O 32K 32K Pad Name Pad Location Type RXD 12 I TXD 13 ...
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Pad Name Pad Location SCLK 20 SFS 21 STD 22 SRD 23 Pad Name Pad Location _CORE _IO 11 CC 3,4,17,18,24, GND 29,30,31,32 1,5,33,34,35, NC 36,37,38,39,40 41,42,43,44,45, 46,47,48,49,50, 51,52,53,54,55, NC ...
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Application Diagrams The following diagrams show two application examples for LMX9838 implementations. Figure 1 illustrates a cable replacement application, requiring the physical UART interface to a data device like a sensor. The LMX9838 just waits for an incoming link ...
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... The following conditions are true unless otherwise stated in the tables below: • -40°C to +85°C A • 3.3V CC • RF system performance specifications are guaranteed on National Semiconductor FlagStaff board rev 2.1 evaluation platform. Absolute Maximum Ratings Parameter Recommended Operating Conditions Parameter Power Supply Requirements (Notes 11, 12) Parameter 6 Min Max Unit -0 ...
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... All tests are measured at antenna port unless otherwise specified • -40°C to +85°C A • V _RF = 2.8V unless otherwise specified DD RF system performance specifications are guaranteed on National Semiconductor Flagstaff board rev 2.1 evaluation platform. Symbol Parameter RX Receive Sensitivity sense PinRF Maximum Input Level IMP ...
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Symbol Parameter OOB Out Of Band Blocking (Note 16) Performance Note 15: Typical operating conditions are at 2.75V operating voltage and 25°C ambient temperature. Note 16: The f = -64 dBm Bluetooth modulated signal where ...
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Symbol Parameter P RF Transmit Output Power OUT MOD ΔF1 Modulation Characteristics AVG MOD ΔF2 Modulation Characteristics (Note 18) MAX ΔF2 Modulation Characteristics /DF1 (Note AVG AVG 19 Bandwidth P 2*f (Note 20 Harmonic Suppression ...
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... Clear-to-Send signals. RTS and CTS are used for hardware handshaking between the host and the LMX9838. Since the LMX9838 acts as gateway between the bluetooth and the UART interface, National Semiconductor recommends to use the handshaking signals especially for transparent operation. In case two signals are used CTS needs to be pulled to GND. ...
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OP3 (Note 23) OP4 (Note 24 Note 23: If OP3 is 1, must use 1K pull up Note 24: If OP4 is 1, must use 1K pull up Note 25: If OP5 ...
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Power Up The LMX9838 contains an internal EEPROM initialized during power up or hardware reset. During this initialization phase it is recommended not to: • Send a command to the LMX9838: The command will be ignored. • Power OFF/ON ...
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Digital Smart Radio 13.1 FUNCTIONAL DESCRIPTION The integrated Digital Smart Radio utilizes a heterodyne re- ceiver architecture with a low intermediate frequency (2 MHz) such that the intermediate frequency filters can be integrated on chip. The receiver consists of ...
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TRANSMITTER CIRCUITRY The transmitter consists of ROM tables, two Digital to Analog (DA) converters, two low-pass filters, IQ mixers, and a power amplifier (PA). The ROM tables generate a digital IQ signal based on the transmit data. The output ...
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Integrated Firmware The LMX9838 includes the full Bluetooth stack up to RF- Comm to support the following profiles: • GAP (Generic Access Profile) • SDAP (Service Discovery Application Profile) • SPP (Serial Port Profile) Figure 5 shows the Bluetooth ...
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Parameter BDADDR Preprogrammed by National Local Name Serial port device PinCode 0000 Operation Mode Automatic ON Default Connections 0 1 SPP entry: Name: COM1 SDP Database Authentication and encryption enabled UART Speed 9600 UART Settings 1 Stop bit, parity disabled ...
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Low Power Modes The LMX9838 supports different Low Power Modes to reduce power in different operating situations. The modular structure of the LMX9838 allows the firmware to power down unused modules. The Low power modes have influence on: • ...
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FIGURE 7. UART NULL Modem Connection 15.2.2 Disabling the UART transport layer The Host can disable the UART transport layer by sending the “Disable Transport Layer” Command. The LMX9838 will empty its buffers, send the confirmation event and disable its ...
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ID Direction 0x52 REQUEST 'R' (REQ) 0x43 Confirm 'C' (CFM) 0x69 Indication 'i' (IND) 0x72 Response 'r' (RES) 16.2 COMMAND SET OVERVIEW The LMX9838 has a well defined command set to: • Configure the device: — Hardware settings — Local ...
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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 Enter Sniff Mode Confirm ...
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Command Read Local Name Read Local Name Confirm Write Local Name Write Local Name Confirm Read Local BDADDR Read Local BDADDR Confirm Change Local BDADDR Change Local BDADDR Confirm Note: The BDADDR is programmed by NSC. It can not be ...
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Command Read NVS Read NVS Confirm Write NVS Write NVS Confirm Command Set Clock and Baudrate Set Clock and Baudrate Confirm Enter Bluetooth Mode Enter Bluetooth Mode Confirm Set Clock and Baudrate Set Clock and Baudrate Confirm Command Set GPIO ...
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Application Notes The different possibilities to power supply the LMX9838 de- pend on the IO interface logic level. Figure 9 represents an example of system functional schematic for the LMX9838 using a 3.0V to 3.3V IO interface. Figure 10 ...
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Capacitor values C1 and C2 may vary depending on design and crystal manufacturer specification. MVCC can be connected to 3.0V and above in this configuration. Please see Recommended Operating Conditions. FIGURE 10. 2.5V to 3.0V Example Functional System Schematic Capacitor ...
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Capacitor values C1 and C2 may vary depending on design and crystal manufacturer specification. MVCC can be connected to 3.0V and above in this configuration. Please see Recommended Operating Conditions. FIGURE 12. 1.8V Example Functional System Schematic Notes: 25 30027911 ...
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Evaluation Design www.national.com 26 ...
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Soldering The LMX9838 bumps are designed to melt as part of the Sur- face Mount Assembly (SMA) process. In order to ensure reflow of all solder bumps and maximum solder joint reliability while minimizing damage to the package, recommended ...
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Regulatory Compliance The LMX9838 has been tested and approved to be compliant to the following regulatory standards: CE Compliance: • EN 300 328 v1.7.1 • EN 301 489-17 v1.2.1 IC Compliance: • RSS-GEN Issue 1 • RSS-210 Issue 7 ...
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Physical Dimensions inches (millimeters) unless otherwise noted NS Package Number SB70A 29 www.national.com ...
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