Texas Instruments LMX9838 Bluetooth Serial Port Module User Manual

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Document ID	756741
Application ID	PQv1KuB961hj7geToo0Tjg==
Document Description	User Manual
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Permanent Confidential	No
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Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	39.85kB (498106 bits)
Date Submitted	2007-02-08 00:00:00
Date Available	2007-02-08 00:00:00
Creation Date	2002-03-04 11:55:17
Producing Software	Acrobat Distiller 6.0.1 (Windows)
Document Lastmod	2007-02-08 14:58:07
Document Title	Untitled Document
Document Creator	FrameMaker 7.1

Revision 0.3
LMX9838DONGLE Hardware User Guide
1.0
Scope
2.0
General Description
2.1
REFERENCE DESIGN KIT CONTENTS
™
National Semiconductor LMX9838 Bluetooth serial dongle reference design kit is a plug and play serial adapter for
serial cable replacement applications and more. It is able
to support more profiles than just the Serial Port Profile
(including audio support with external codec boards). By
using the enclosed Simply Blue Commander software, it
allows user to develop their own SW applications easily
given the built in interpreter for HEX commands. SBSmart
is a higher level application tool that provides buttons with
the built in commands to easily set up or demonstrate different profile support using the Simply Blue SPP package.
■
■
■
■
■
■
LMX9838 Bluetooth serial adapter reference board
USB Dongle and application software stack
Null modem cable
Sedona Lite board (Audio CODEC Board)
110V to 240V AC to 5V DC power adapter and pigtail
CDROM with design documents and Simply Blue software Application tools.
2.2
LMX9838 BLUETOOTH SERIAL
ADAPTER REFERENCE BOARD
Figure 1. Reference Board and Sedona Lite Board
Bluetooth is a trademark of Bluetooth SIG, Inc. and is used under license by National Semiconductor.
© 2006 National Semiconductor Corporation
www.national.com
LMX9838DONGLE Hardware User Guide
February 2007
LMX9838DONGLE Hardware User Guide
3.0
Qualification
■ One of the following operating system is required.
— Windows 2000
— Windows XP
■ FCC certified:
— FCC ID: ED9LMX9838
■ FCC compliance (see Section 13.0): The device complies with Part 15 of FCC Rules. Operation is subject to
the following two conditions:
— This device may not cause harmful interference
— This device must accept any interference received,
including interference that may cause undesired
operation
■ IC certified:
— IC: 1520A-LMX9838
■ Bluetooth SIG QD ID: B012394
4.0
Requirement and Setup
4.1
BASIC REQUIREMENT
4.2
APPLICATION SOFTWARE
4.2.1
Simply Blue Commander
Application command oriented tool to generate commands
and watch events in the Simply Blue Command interface
window. Reference the Simply Blue Commander User
Guide document for details.
4.2.2
SBSmart
Easy to use Windows based tool to demonstrate additional
profile support of the Simply Blue functionality. Reference
the SBSmart User Guide for additional details.
4.2.3
Patch Programming
LMX9838 allows for patch programming for firmware
update if necessary. Reference the LMX9838 SW User
Guide document for details. This can also be done with the
Simply Blue Commander and SBSmart tools.
■ X86 PC with serial port.
Figure 2. System Block Diagram
5.0
Functional Description
5.3
5.1
POWER SUPPLY
DB9 connector for RS232 standard PC interface using Onboard level shifter IC for handling LMX9838 module’s 3.3V
UART interface.
■ DC Power Jack (6V max)
■ Battery Holder (6V max)
5.2
5.4
■
■
■
■
MAIN SYSTEM
■ Reset button for manual Reset
■ Jumper option for Baud rate selection
www.national.com
UART INTERFACE
ADVANCE AUDIO INTERFACE
Support Audio applications
PCM codec interface (support linear and A-law)
PCM Master or Slave operation (SW configurable)
Direct connection to Sedona Lite Board (A-law only)
Design Consideration
6.1
POWER MANAGEMENT
Table 2
Connector
■ 3.3V output single LDO is used to provide power for
RS232 interface chip and Digital portion of the LMX9838.
7.0
■
■
■
■
Maximum input voltage is 6V
J6
DC jack
Same as above
J8
DP9 serial connector (male)
See Table 5
J5
External processor
interface
See Table 6
J4
Advance Audio
interface
See Table 7
Table 3 Jumper and Test Point Summary
PCB REQUIREMENT
Jumper /
Test Point
J1, J2 and
J3
LAYERS CLASSIFICATION
Top layer is the components and main signals layer
Bottom layer is interface signals and ground plane
RF circuit requirement
Large ground plane with ground via’s is must for good
RF performance
8.0
A summary of the configuration and selection jumpers is
provided in the tables that follow. Reference both the schematic and PCB layout (included on the CD in the kit)
Major Components List
Description
U1
National LMX9838 Serial Port Module - Reference the device datasheet.
U3
National LP3985 Low-Dropout Voltage Regulator
U2
Maxim MAX3225 1 Mbps High Speed UART
Driver
See Table 8
Switch and LEDs
Description
Reset button
D1
Operation Status
D2
Data Traffic (TX/RX)
Table 5
Board components and Pin Assignments
Details
S1
Pin #
Device
Clock & UART setting jumper
Switch/LED
AUDIO CODEC Board
Table 1
Description
Table 4
Sedona Lite Board contains an audio codec and two phone
jacks. This board can be used in conjuction with
LMX9838DONGLE to realize the audio (SCO) transmission and reception capabilities. (See Table 9)
9.0
Details
Battery Connector
2mm pitch
Layout Consideration
■ 2 layers PCB required
■ 1 mm overall thickness
7.2
Description
J7
The LMX9838 reference design is split into 2 sections, one
section is RS232 transceiver circuit for PC connection,
another section is LMX9838 main circuit for Host processor. (Figure 3)
7.1
Connectors Summary
J8 DP9 (male) Pin Assignments
Signal name
Description
NC
No connection
RxD
Receive Data (input)
TxD
Transmit Data (output)
NC
No connection
GND
Ground
NC
No connection
RTS
Ready to send (output)
CTS
Clear to send (input)
NC
No connection
www.national.com
LMX9838DONGLE Hardware User Guide
6.0
LMX9838DONGLE Hardware User Guide
Table 6
J5 External Processor Interface
Pin # Signal name
Table 8
Description
UART interface setting
J2
J3
J1
UART baud rate
POWER_D#
VCC
ON/OFF control of LMX9838
LDO output (3.3V)
Short
Short
Short
Open
Short
Short
921600bps
115200bps(default)
GND
TXD
Ground
Transmit Data (output)
Open
Open
Short
Open
Short
Short
9600bps
NVS (Default 9600bps)
CTS#
RXD
Clear to send (input)
Receive Data (input)
RTS#
VCC_CORE
_IN
RESET#
Ready to send (output)
1.8V voltage regulator input/output
Reset (input)
Table 9 J4 (Audio CODEC Board)
Pin # Signal name
Description
Vcc
3.3V Input
SCLK
PCM Clock
Table 7 J4 Advance Audio Interface
Pin # Signal name
Description
VCC
LDO output (3.3V)
SCLK
Advanced Audio Interface Clock
STD
Advanced Audio Interface
Transmit Data
SFS
Advanced Audio Interface Frame
Synchronization
SRD
Advanced Audio Interface
Receive Data
GND
Ground
STD
PCM Input Data
SFS
PCM Frame Synchronization
SRD
PCM Output Data
GND
Ground
Table 10
P17
For PC Microphone
P15
For PC Headphone
Figure 3. Top view of Reference board
www.national.com
Audio Connection
Item Name
Description
Vendor
Part Number
C5,C6
Capacitor 22p 0603 C0G 50V
MuRata
GRM39C0G220J50
C1,C3,C8,
C10
Capacitor 100n 0603 Y5V 50V
MuRata
GRM39Y5V104Z50
C2,C4,C7
Capacitor 2u2F 0603 Y5V 10V
MuRata
GRM39Y5V225Z10
C9
Capacitor 100p 0603 C0G 50V
MuRata
GRM39C0G101J50
C11,C12
TANT CAP 1uF 16V SIZE A
Any
C13,C14,C15, Capacitor 1uF 1206 X7R 25V
C16,C17
MuRata
GRM42-6X7R105K25
C19
Capacitor 1uF 0603 Y5V 10V
MuRata
GRM39Y5V105Z10
J7
Battery holder (2mm pitch)
Any
S1
TACK SWITCH TS-1135HS
RAINBOW
Y1
Tuning fork crystal 32.768KHz
Any
J6
DC POWER JACK
Morning star limited
D1
Red Color LED 0603 Size
Any
D2
Blue Color LED 0603 Size
Any
J8
DB9 (male) serial connector
Any
J4
2mm Socket (6 poles)
Any
U1
Bluetooth SPP Micro Module
National Semiconductor
LMX9838SM
U3
Low Dropout Regulator
National Semiconductor
LP3985IM5X-3.3
U2
High Speed RS232 Transceivers
Maxim
MAX3225EEAP+
R1,R2,R3
Resistor 0603 Size, 1K
Any
R11,R12
Resistor 0603 Size, 10K
Any
R6,R7,R8,R9,
R13,R14,R17
Resistor 0603 Size, 0R
Any
R4,R5
Resistor 0603 Size, 330R
Any
J3,J10
2mm header
Any
J1,J2
2mm header (with jumper)
Any
DC-015
11.0 Bill of Materials (Sedona Lite Board)
Item Name
Description
Vendor
Part Number
C3,C4,C5,C6
Capacitor 100nF
Any
Ceramic cap
C6
Capacitor 1uF
Any
Ceramic cap
C12
TANT CAP 10uF, 10V
Any
C40
TANT CAP 47uF, 6.3V
Any
C11
Not mount
J1
2mm socket (6 poles)
Any
J2
2.54mm socket (2 x 4 poles)
Any
P15
Socket for speaker (mono)
Morning Star
MSJ-1537
P17
Socket for microphone (mono)
Morning Star
MSJ-1537
R10
Resistor 0402 Size, 10R
Any
R13,R14
Resistor 0402 Size, 1K
Any
R5,R22
Resistor 0402 Size, 4.7K
Any
www.national.com
LMX9838DONGLE Hardware User Guide
10.0 Bill of materials (Reference Board)
LMX9838DONGLE Hardware User Guide
Item Name
Description
Vendor
R3
Resistor 0402 Size, 10K
Any
R4,R8,R9
Resistor 0402 Size, 47K
Any
U2
Single Rail Codec
OKI
12.0 References
MSM7717-01MS-K
■ LMX9838 Bluetooth Serial Port Module - Software Users
Guide
■ LMX9838 Bluetooth Serial Port Module data sheet
■ SBSmart user guide
Figure 4. Sedona Board
www.national.com
Part Number
13.1
SAFETY INFORMATION FOR RF
EXPOSURE
13.1.1
FCC Radiation Exposure Statement:
rect the interference by one or more of the following measures:
■ Reorient or relocate the receiving antenna.
■ Increase the separation between the equipment and receiver.
■ Connect the equipment into an outlet of a circuit different
from that to which the receiver is connected.
■ Consult the dealer or an experienced radio/TV technician for assistance.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users
must follow the specific operating instructions for satisfying
RF exposure compliance.
This device is intended only form OEM integrators under
the following conditions:
Changes or modification not expressly approved by the
party responsible for Compliance could void the user’s
authority to operate the equipment. Connecting of peripherals requires the use of grounded shielded signal cables.
1. The antenna must be installed such that 20cm is maintained between the antenna and users;
13.2.2
and
This device complies with Part 15 of FCC Rules.
2. The transmitter module may not be co-located with any
other transmitter or antenna.
Operation is subject to the following two conditions:
IMPORTANT NOTE: In the event that these conditions can
not be met (for example certain laptop configurations or colocation with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID can not
be used on the final product. In these circumstances, the
OEM integrator will be responsible for re-evaluating the
end product (including the transmitter) and obtaining a separate FCC authorization.
2) This device must accept any interference received,
including interference that may cause undesired operation.
13.1.2
FCC Compliance Information
1) This device may not cause harmful interference, and
End Product Labeling
This transmitter module is authorized only for use in
devices where the antenna may be installed such that 20
cm may be maintained between the antenna and users.
The final end product must be labeled in visible area with
the following:
“Contains TX FCC ID: ED9LMX9838”
13.1.3
End Product Manual Information
The user manual for end users must include the following
information in a prominent location:
“IMPORTANT NOTE:
To comply with FCC RF exposure compliance requirements, the antenna used for this transmitter must be
installed to provide a separation distance of at least 20cm
from all persons and must not be co-located or operating in
conjunction with any other antenna or transmitter.”
13.2
RADIO FREQUENCY INTERFERENCE
STATEMENT
13.2.1
INFORMATION TO THE USER
NOTE : This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to
Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection
against harmful Interference in a residential installation
This equipment generates, uses, and can radiate radio frequency energy and, if Not installed and used in accordance
with the instructions, may cause harmful Interference to
radio communications. However, there is no guarantee that
interference will not occur in a particular Installation. If this
equipment does cause harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to cor-
www.national.com
LMX9838DONGLE Hardware User Guide
13.0 Appendix: FCC instructions
LMX9838DONGLE Designer Guide
LIFE SUPPORT POLICY
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
or sustain life, and whose failure to perform, when properly used
in accordance with instructions for use provided in the labeling,
can be reasonably expected to result in a significant injury to the
user.
2. A critical component is any component of a life support device
or system whose failure to perform can be reasonably expected
to cause the failure of the life support device or system, or to affect its safety or effectiveness.
BANNED SUBSTANCE COMPLIANCE
National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship
Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no “Banned
Substances” as defined in CSP-9-111S2.
Leadfree products are RoHS compliant.
National Semiconductor
Corporation
Tel: 1-800-272-9959
Fax: 1-800-737-7018
Email: support@nsc.com
National Semiconductor
Europe
Fax:
+49 (0) 180-530 85 86
Email: europe.support@nsc.com
Deutsch Tel:
+49 (0) 69 9508 6208
English Tel:
+44 (0) 870 24 0 2171
Francais Tel:
+33 (0) 1 41 91 8790
National Semiconductor
Asia Pacific
Customer Response Group
Tel: 65-254-4466
Fax: 65-250-4466
Email: ap.support@nsc.com
National Semiconductor
Japan Ltd.
Tel: 81-3-5639-7560
Fax: 81-3-5639-7507
www.national.com
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.

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