LMX9838 National Semiconductor Corporation, LMX9838 Datasheet
LMX9838
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LMX9838 Summary of contents
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... 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. ...
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... Additional Profile support on Host. e.g: — Dial Up Networking (DUN) — Facsimile Profile (FAX) — File Transfer Protocol (FTP) 6.0 Ordering Information Order Number LMX9838SB LMX9838SBX Note 1: NOPB = No Pb (No Lead) www.national.com — Object Push Profile (OPP) — Synchronization Profile (SYNC) — Headset (HSP) — Handsfree Profile (HFP) — ...
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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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... 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 and forwards data between the data device and the bluetooth link. PG6 acts as active link indicator and is used to enable the data transfer from the sensor ...
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... Module internal Voltage Regulator input CC V Digital Voltage Regulator input CC T Digital Voltage Regulator Rise Time R T Ambient Operating Temperature Range A Fully Functional Bluetooth Node V _IO(Note 9) Supply Voltage Digital I _CORE Supply Voltage Output (Note 10) CC Note 9: V must be > (V _IO - 0.5V) to avoid backdrive supply. ...
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... I Logical 0 Output Current OL Note 14: Guaranteed by design. 10.2 RF PERFORMANCE CHARACTERISTICS In the performance characteristics tables the following applies: • All tests performed are based on Bluetooth Test Specification revision 2.0 • All tests are measured at antenna port unless otherwise specified • -40°C to +85°C A • ...
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... RF = -27 dBm, -27 in 2498 MHz < F < 3000 MHz, CWI BER < 0.001 -10 dBm, -10 in 3000 MHz < F < 12.75 GHz, CWI BER < 0.001 = -39dbm sine wave -39 dBm Bluetooth modulated signal Typ Max Unit (Note 15) dBm dBm dBm dBm = and | ...
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... Tx Transmitter Delay Time D Note 22: Frequency accuracy is dependent on crystal oscillator chosen. The crystal must have a cumulative accuracy of < +/-20ppm to meet Bluetooth specifications. Note: All RF parameters are tested prior to the antenna. Transmitter Performance Characteristics Condition 2.402 GHz 2.441 GHz 2 ...
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... Profile (GAP), the Service Discovery Application Profile (SDAP), and the Serial Port Profile (SPP). The on-chip profiles can be used as interfaces to additional profiles executed on the host. The LMX9838 includes a con- figurable service database to answer requests with the pro- files supported. 11.1.4 Application With Command Interface The module supports automatic slave operation eliminating the need for an external control unit ...
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... OKI MSM7717 codec, the Win- bond W681360/W681310 codecs and the PCM slave through the AAI. In case an external codec or DSP is used the LMX9838 audio interface generates the necessary bit and frame clock driving the interface. Table 8 summarizes the audio path selection and the config- uration of the audio interface at the specific modes ...
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... 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 the LMX9838: The EEPROM initialization phase will be interrupted and the EEPROM will not be recognized which leaves the device in a lockup situation. • ...
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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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... Additional links will only be possible if the device is not in transparent mode. 14.1.2 Default Connections The LMX9838 supports the storage devices within its NVS. Those connections can either be connected after re- set or on demand using a specific command. 14.1.3 Event Filter ...
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... Default Link Timeout 20 seconds Event Filter Standard LMX9838 events reported Default Audio Settings none www.national.com TABLE 11. Operation Parameters Stored in LMX9838 Default Value Bluetooth device address Bluetooth PinCode Automatic mode ON or OFF Up to seven default devices to connect to Service discovery database, control for supported profiles ...
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... Transport Layer” is used. Thus only the Host side command interface can disable the transport layer. Enabling the transport layer is controlled by the HW Wakeup signalling. This can be done from either the Host or the LMX9838. See also “LMX9838 Software User’s Guide” for detailed informa- tion on timing and implementation requirements. ...
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... Enabling the UART transport layer from the host If the host needs to send data or commands to the LMX9838 while the UART Transport Layer is disabled it must first as- sume that the LMX9838 is sleeping and wake it up using its RTS signal ...
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... Set up and handle links Table 15 through Table 25 show the actual command set and the events coming back from the device. A full documented description of the commands can be found in the “LMX9838 Software User’s Guide”. Note: For standard Bluetooth operation only commands from Table 15 through Table 17 will be used ...
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... SPP Port Framing Error SPP Port Framing Error Confirm SPP Port Status Changed www.national.com TABLE 19. Bluetooth Low Power Modes Event Defines the link policy used for any incoming or outgoing link Returns the stored default link policy Defines the modes allowed for a specific link ...
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... PIN code is requested during authentication of an ACL link Get actual Security mode Configure Security mode for local device (default 2) Remove pairing with a remote device Get list of paired devices stored in the LMX9838 data memory Enables/Disables the request for master role at incoming connections TABLE 24. Local Service Database Configuration Event ...
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... 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 WPU Set GPIO WPU Confirm Get GPIO Input State ...
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... Figure 10 represents an example of system functional schematic for the LMX9838 using a 2.5V to 3.0V IO interface. Figure 11 represents an example of system functional schematic for the LMX9838 using a 1.8V to 2.5V IO interface. Figure 12 represents an example of system functional schematic for the LMX9838 using a 1.8V IO interface. Capacitor values C1 and C2 may vary depending on design and crystal manufacturer specification. ...
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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 re- flow profiles should be used. Parameter PCB Land Pad Diameter ...
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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 Annex 8 and RSS-GEN issue 2 FCC Compliance: • FCC Part 15 Subpart C 20.1 FCC INSTRUCTIONS 20 ...
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Physical Dimensions inches (millimeters) unless otherwise noted NS Package Number SB70A 29 www.national.com ...
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