National Semiconductor LMX9838DONGLE Hardware User's Manual

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LMX98

38DONG

E - Har

ware Us

er Guid

National Semiconductor

Application Note 1710

Markus Roemer

September 2007

LMX9838DONGLE - Hardware

User Guide

1.0

Scope

National Semiconductor LMX9838 Bluetooth

™

serial dongle

evaluation kit is a plug and play serial adapter for serial

cable replacement applications and more. It is able to sup-

port 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 com-

mands to easily set up or demonstrate different profile sup-

port using the Simply Blue SPP package.

2.0

General Description

2.1

EVALUATION KIT CONTENTS

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 soft-

ware Application tools.

2.2

LMX9838 BLUETOOTH SERIAL ADAPTER

Figure 1.

LMX9838Dongle and Sedona Lite Board

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Summary of LMX9838DONGLE

Page 1
©2007 national semiconductor corporation www.National.Com lmx98 38dong l e - har d ware us er guid e national semiconductor application note 1710 markus roemer september 2007 lmx9838dongle - hardware user guide 1.0 scope national semiconductor lmx9838 bluetooth ™ serial dongle evaluation kit is a pl...
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Www.National.Com 2 an -1 7 1 0 3.0 qualification fcc certified: • fcc id: ed9lmx9838 fcc compliance: the device complies with part 15 of fcc rules. Operation is subject to the following two con- ditions: • this device may not cause harmful interference • this device must accept any interference ...
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3 www.National.Com an-1 7 1 0 6.0 design consideration 6.1 power management 3.3v output single ldo is used to provide power for rs232 interface chip and digital portion of the lmx9838. 7.0 layout the lmx9838 reference design is split into 2 sections, one section is rs232 transceiver circuit for pc...
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Www.National.Com 4 an -1 7 1 0 9.0 board components and pin as- signments a summary of the configuration and selection jumpers is provided in the tables that follow. Reference both the sche- matic and pcb layout (included on the cd in the kit) table 1. Major components list device description u1 nat...
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5 www.National.Com an-1 7 1 0 10.0 bill of materials (lmx9838dongle) table 9 audio connection p17 for pc microphone p15 for pc headphone 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,...
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Www.National.Com 6 an -1 7 1 0 11.0 bill of materials (sedona lite board) 12.0 bibliography [1] lmx9838 bluetooth serial port module data sheet [2] an1699-lmx9838 bluetooth serial port module - soft- ware users guide [3] sbsmart user guide item name description vendor part number c3,c4,c5,c6 capacit...
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7 www.National.Com an-1 7 1 0
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Lm x98 3 8 d o n gle - har d w a re use r guide the contents of this document are provided in connection with national semiconductor corporation (“national”) products. National makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and...