Features • Complete Bluetooth 2.0 Stack including • Baseband and Link Manager • Protocols: L2CAP, RFCOMM, SDP • Profiles: GAP, SDAP, SPP • High Integration: Includes Antenna, crystal, EEPROM, LDO • Supporting up to 7 active Bluetooth data links and 1 active SCO link • Class 2 operation • UART Command/Data port speed up to 921.6kbits/s • Advanced Audio Interface for external PCM codec • Better than -80dBm input sensitivity • FCC certified: FCC ID: ED9LMX9838 • IC certified: IC-1520A-LMX9838 • CE Self certified • Bluetooth SIG QD ID: B012394 • Compact Size: 10mm x 17mm x 2.0mm Description The National Semiconductor LMX9838 Bluetooth Serial Port module is a fully integrated Bluetooth 2.0 baseband controller, 2.4 GHz radio, crystal, antenna, LDO and discreets; combined to form a complete small form factor (10 mm x 17 mm x 2.0 mm) Bluetooth node. All hardware and firmware is included to provide a complete solution from antenna through the complete lower and upper layers of the Bluetooth stack, up to the application including the Generic Access Profile (GAP), the Service Discovery Application Profile (SDAP), and the Serial Port Profile (SPP). The module includes a configurable service database to fulfil service requests for additional profiles on the host. Moreover, the LMX9838 is qualified as a Bluetooth endproduct, ready to be used in the end application without additional testing and license cost. Based on National’s CompactRISC 16-bit processor architecture and Digital Smart Radio technology, the LMX9838 is optimized to handle the data and link management processing requirements of a Bluetooth node. The firmware supplied in the on-chip ROM memory offers a complete Bluetooth (v2.0) 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. The internal memory supports up to 7 active Bluetooth data links and one active SCO link. The on-chip Patch RAM provided for lowest cost and risk, allows the flexibility of firmware upgrade. The module is lead free and RoHS (Restriction of Hazardous Substances) compliant. For more information on those quality standards, please visit our green compliance website at http://www.national.com/quality/green/

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Datasheet

Title		Size	Date	Other Language
	LMX9838 Bluetooth Serial Port Module	1174 Kbytes	4-Oct-07

Featured Application Notes

Title		Size	Date	Other Language
	AN-1706: Application Note 1706 LMX9838 Firmware Release Note	557 Kbytes	13-Sep-07
	AN-1699: Application Note 1699 LMX9838 Software Users Guide	4816 Kbytes	17-Mar-08
	AN-1709: Application Note 1709 LMX9838 Bluetooth® (PRD 2.0) Qualification Guideline	934 Kbytes	25-Sep-07
	AN-1700: Application Note 1700 LMX9838 Cable Replacement	185 Kbytes	7-Sep-07

More Application Notes

Title		Size	Date	Other Language
	AN-1811: Application Note 1811 Bluetooth Antenna Design	2736 Kbytes	12-Mar-08

Design Tools

Title	Size	Date
LMX9838 Bluetooth Serial Port Module - Additional Developer' Documentation
LMX9838 Bluetooth Serial Port Module Evaluation Kit

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMX9838SB	CMOS9T	0	2160	0	0	2397152	2	680198425

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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