RN52 Bluetooth® Audio
Evaluation Kit User’s Guide
2014 Microchip Technology Inc.
DS50002153A
Note the following details of the code protection feature on Microchip devices:
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Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
•
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
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Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
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Information contained in this publication regarding device
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and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
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Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,
PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash
and UNI/O are registered trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
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MTP, SEEVAL and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
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Microchip Technology Inc. in other countries.
Analog-for-the-Digital Age, Application Maestro, BodyCom,
chipKIT, chipKIT logo, CodeGuard, dsPICDEM,
dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial
Programming, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code
Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,
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All other trademarks mentioned herein are property of their
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© 2014, Microchip Technology Incorporated, Printed in the
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Printed on recycled paper.
ISBN: 978-1-63276-021-0
QUALITYMANAGEMENTSYSTEM
CERTIFIEDBYDNV
== ISO/TS16949==
DS50002153A-page 2
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
2014 Microchip Technology Inc.
RN52 Bluetooth Audio Evaluation Kit User’s Guide
Object of Declaration: RN52 Bluetooth Audio Evaluation Kit
2014 Microchip Technology Inc.
DS50002153A-page 3
RN52 Bluetooth Audio Evaluation Kit User’s Guide
NOTES:
2014 Microchip Technology Inc.
DS50002153A-page 4
RN52 BLUETOOTH AUDIO
EVALUATION KIT USER’S GUIDE
Table of Contents
Preface ........................................................................................................................... 7
Chapter 1. Overview
1.1 Introduction ................................................................................................... 13
1.2 RN52 Evaluation Kit Features ...................................................................... 13
1.3 RN52 Evaluation Kit Contents and Part Details ........................................... 14
1.4 RN-52-EK Evaluation Board ......................................................................... 15
1.5 RN52 Evaluation Kit Related Information Contents ..................................... 17
Chapter 2. Getting Started
2.1 Introduction ................................................................................................... 19
2.2 Hardware Requirements .............................................................................. 19
2.3 Power Up the Board ..................................................................................... 20
2.4 Using the Evaluation Kit ............................................................................... 20
Chapter 3. Application Demonstrations
3.1 Audio Demonstration .................................................................................... 27
3.2 HSP/HFP Demonstration ............................................................................. 28
Appendix A. RN52 Audio Evaluation Kits Schematics
A.1 Introduction .................................................................................................. 29
A.2 RN52 Evaluation Kits Schematic ................................................................. 29
A.3 RN52 Evaluation Kits PCB Layout and Assemble Drawings ....................... 31
A.4 RN52 Evaluation Kits Bill of Materials .......................................................... 34
A.5 RN52 Evaluation Kits Physical Dimensions ................................................. 35
Worldwide Sales and Service .................................................................................... 37
2014 Microchip Technology Inc.
DS50002153A-page 5
RN52 Bluetooth Audio Evaluation Kit User’s Guide
NOTES:
DS50002153A-page 6
2014 Microchip Technology Inc.
RN52 BLUETOOTH AUDIO
EVALUATION KIT USER’S GUIDE
Preface
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs and/
or tool descriptions may differ from those in this document. Please refer to our web site
(www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the
document.
For the most up-to-date information on development tools, see the MPLAB® IDE on-line help.
Select the Help menu, and then Topics to open a list of available on-line help files.
INTRODUCTION
This chapter contains general information that will be useful to know before using the
Product Name. Items discussed in this chapter include:
•
•
•
•
•
•
•
•
Document Layout
Conventions Used in this Guide
Warranty Registration
Recommended Reading
The Microchip Web Site
Development Systems Customer Change Notification Service
Customer Support
Document Revision History
DOCUMENT LAYOUT
This user’s guide describes how to use the RN52 Bluetooth Audio Evaluation Kit. The
document is organized as follows:
• Chapter 1. “Overview” – This chapter introduces the RN52 Bluetooth Audio
Evaluation Kit and provides an overview of various features.
• Chapter 2. “Getting Started” – This chapter describes the hardware
components and setup of the RN52 Bluetooth Audio Evaluation Kit.
• Chapter 3. “Application Demonstrations” – This chapter describes the
application demonstrations of the RN52 Bluetooth Audio Evaluation Kit.
• Appendix A. “RN52 Audio Evaluation Kits Schematics” – This appendix
includes a schematic of the RN-52-EK Evaluation Board, and the Bill of Materials.
2014 Microchip Technology Inc.
DS50002153A-page 7
RN52 Bluetooth Audio Evaluation Kit User’s Guide
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description
Represents
Examples
Arial font:
MPLAB® IDE User’s Guide
Italic characters
Referenced books
Emphasized text
...is the only compiler...
Initial caps
A window
the Output window
A dialog
the Settings dialog
A menu selection
select Enable Programmer
Quotes
A field name in a window or
dialog
“Save project before build”
Underlined, italic text with
right angle bracket
A menu path
File>Save
Bold characters
A dialog button
Click OK
A tab
Click the Power tab
N‘Rnnnn
A number in verilog format,
4‘b0010, 2‘hF1
where N is the total number of
digits, R is the radix and n is a
digit
Text in angle brackets < >
A key on the keyboard
Press <Enter>, <F1>
Sample source code
#define START
Filenames
autoexec.bat
File paths
c:\mcc18\h
Keywords
_asm, _endasm, static
Command-line options
-Opa+, -Opa-
Bit values
0, 1
Courier New font:
Plain Courier New
DS50002153A-page 8
Constants
0xFF, ‘A’
Italic Courier New
A variable argument
file.o, where file can be
any valid filename
Square brackets [ ]
Optional arguments
mcc18 [options] file
[options]
Curly brackets and pipe
character: { | }
Choice of mutually exclusive
arguments; an OR selection
errorlevel {0|1}
Ellipses...
Replaces repeated text
var_name [,
var_name...]
Represents code supplied by
user
void main (void)
{ ...
}
2014 Microchip Technology Inc.
Preface
WARRANTY REGISTRATION
Please complete the enclosed Warranty Registration Card and mail it promptly.
Sending in the Warranty Registration Card entitles users to receive new product
updates. Interim software releases are available at the Microchip web site.
RECOMMENDED READING
This user’s guide describes how to use the RN-52-EK Evaluation Board. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources:
RN52 Bluetooth Audio Module Data Sheet (DS70005120)
PICDEM™ PIC18 Explorer Demonstration Board User’s Guide (DS51721)
Explorer 16 Development Board User’s Guide (DS51589)
Bluetooth Audio Module Command Reference User’s Guide (DS50002154)
For more information, refer to the following sources:
• RN52/RN52N Class 2 Bluetooth Module Data Sheet
• Bluetooth Command Reference and Advanced Information User’s Guide
2014 Microchip Technology Inc.
DS50002153A-page 9
RN52 Bluetooth Audio Evaluation Kit User’s Guide
THE MICROCHIP WEB SITE
Microchip provides online support via our web site at http://www.microchip.com. This
web site is used as a means to make files and information easily available to
customers. Accessible by using your favorite Internet browser, the web site contains
the following information:
• Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software
• General Technical Support – Frequently Asked Questions (FAQs), technical
support requests, online discussion groups, Microchip consultant program
member listing
• Business of Microchip – Product selector and ordering guides, latest Microchip
press releases, listing of seminars and events, listings of Microchip sales offices,
distributors and factory representatives
DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE
Microchip’s customer notification service helps keep customers current on Microchip
products. Subscribers will receive e-mail notification whenever there are changes,
updates, revisions or errata related to a specified product family or development tool of
interest.
To register, access the Microchip web site at http://www.microchip.com, click on Customer Change Notification and follow the registration instructions.
The Development Systems product group categories are:
• Compilers – The latest information on Microchip C compilers and other language
tools. These include the MPLAB® C compiler; MPASM™ and MPLAB 16-bit
assemblers; MPLINK™ and MPLAB 16-bit object linkers; and MPLIB™ and
MPLAB 16-bit object librarians.
• Emulators – The latest information on the Microchip MPLAB REAL ICE™
in-circuit emulator.
• In-Circuit Debuggers – The latest information on the Microchip in-circuit
debugger, MPLAB ICD 3.
• MPLAB IDE – The latest information on Microchip MPLAB IDE, the Windows®
Integrated Development Environment for development systems tools. This list is
focused on the MPLAB IDE, MPLAB SIM simulator, MPLAB IDE Project Manager
and general editing and debugging features.
• Programmers – The latest information on Microchip programmers. These include
the MPLAB PM3 device programmer and the PICkit™ 3 development
programmers.
DS50002153A-page 10
2014 Microchip Technology Inc.
Preface
CUSTOMER SUPPORT
Users of Microchip products can receive assistance through several channels:
•
•
•
•
Distributor or Representative
Local Sales Office
Field Application Engineer (FAE)
Technical Support
Customers should contact their distributor, representative or Field Application Engineer
(FAE) for support. Local sales offices are also available to help customers. A listing of
sales offices and locations is included in the back of this document.
Technical support is available through the web site at: http://support.microchip.com
DOCUMENT REVISION HISTORY
Revision A (March 2014)
This is the initial released version of this document.
2014 Microchip Technology Inc.
DS50002153A-page 11
RN52 Bluetooth Audio Evaluation Kit User’s Guide
NOTES:
DS50002153A-page 12
2014 Microchip Technology Inc.
RN52 BLUETOOTH AUDIO
EVALUATION KIT USER’S GUIDE
Chapter 1. Overview
1.1
INTRODUCTION
This user’s guide describes the hardware and software setup for the RN52 Bluetooth®
Audio Evaluation Kit. This kit contains the hardware needed to evaluate the RN52
Bluetooth audio module. The RN52 module is mounted to an evaluation board that
demonstrates the module’s key features. The evaluation board contains:
•
•
•
•
•
•
Dual-channel audio output and input
Easy access to GPIO pins
Built-in amplifier for stereo audio output
6 push buttons to control audio playback
Status LEDs
Connections for the programmer and UART interfaces
The RN52 supports the following Bluetooth profiles:
• A2DP stereo audio (Sink mode with support for Sub-Band Coding (SBC),
Advanced Audio Coding (AAC) and aptX® codecs
• AVRCP media player remote control
• HFP/HSP for accepting a phone call with 3-way calling and caller-ID support
• Support for Clear Voice Capture® (cVc) voice enhancement through HFP/HSP
• SPP (allows the module to receive serial data over the UART)
• iAP profile discovery for iOS devices
The evaluation kit can be used to configure and program the Bluetooth module using
the command interface, create connections, and transfer data. The command interface
is made up of simple ASCII commands. For more details, refer to the “RN52 Bluetooth
Audio Module Data Sheet”, “Bluetooth Audio Module Command Reference User’s
Guide”, and “Bluetooth Command Reference and Advanced Information User’s
Guide”.
For data sheet and other details related to RN52 module, refer to the Microchip web
site at http://www.microchip.com.
This chapter discusses the following topics:
•
•
•
•
1.2
RN52 Evaluation Kit Features
RN52 Evaluation Kit Contents and Part Details
RN-52-EK Evaluation Board
RN52 Evaluation Kit Related Information Contents
RN52 EVALUATION KIT FEATURES
1.2.1
RN52 Evaluation Board Features
The RN52 Evaluation Board has the following features:
• Fully qualified Bluetooth version 3.0 module, fully compatible with Bluetooth version 2.1 + Enhanced Data Rate (EDR), 1.2, and 1.1
• Backwards-compatibility with Bluetooth version 2.0, 1.2, and 1.1
• Software configurable through commands over UART console interface
2014 Microchip Technology Inc.
DS50002153A-page 13
RN52 Bluetooth Audio Evaluation Kit User’s Guide
• Dedicated GPIO pins enable MCUs to access control and status functions efficiently
• Embedded RN-52 module with postage-stamp size form factor of 13.5 x 26.0 x 2.7
mm
• Embedded Bluetooth stack profiles: A2DP, AVRCP, HFP/HSP, and SPP
• Dual-channel, differential audio input and output for highest quality audio
• Supports iAP profile to discover iOS devices and apps (requires a special firmware build)
• Integrated amplifier for driving 16 Ω speakers
• UART (SPP) data connection interfaces
• External audio CODECs supported via S/PDIF and I2S interface
• Castellated SMT pads for easy and reliable PCB mounting
• Environmentally friendly, RoHS compliant
• Certifications: FCC, IC, and CE
• Bluetooth SIG certified
1.3
RN52 EVALUATION KIT CONTENTS AND PART DETAILS
The evaluation kit includes the hardware required to connect the evaluation board to
the host computer. See Table 1-1. To evaluate the module on the evaluation board, the
user needs a computer with a USB port running the Microsoft Windows or Mac OS-X
operating system.
Note:
Prior to the evaluation, install the FTDI driver for the USB cable. If the drivers are not automatically installed, download and install the FTDI drivers
from the Microchip web site at http://ww1.microchip.com/downloads/en/DeviceDoc/FTDI-Drivers.zip for FTDI Chipset Drivers.
Depending on the development kit ordered, the package contains the following:
• RN-52-EK Board - Contains the Bluetooth module and connectors. Supports
Standard application firmware (A2DP/AVRCP/SPP) master and slave
• Mini-USB cable - Links user’s computer to the evaluation board
• Stereo mini-speakers - Rechargeable battery-powered speakers
Table 1-1 lists the part number of RN-52-EK Evaluation Kit.
TABLE 1-1:
RN52 EVALUATION KIT PART DETAILS
Description
RN52 Evaluation board
DS50002153A-page 14
Part Number
RN-52-EK
Mini-USB cable
—
Duo Rechargeable Mini-Speaker
Set (includes Universal 3.5mm
Audio Plug and USB cable)
—
Hands Free Clip on Mini Lapel
Microphone
—
2014 Microchip Technology Inc.
Overview
Figure 1-1 illustrates the RN-52-EK evaluation kit contents.
FIGURE 1-1:
EVALUATION KIT CONTENTS
RN-52-EK
RN52 Evaluation board
USB cable
Stereo mini-speakers
1.4
RN-52-EK EVALUATION BOARD
RN52 Audio Evaluation Board contains the following components as shown in
Figure 1-2 which describes the evaluation board’s interfaces and connectors. Table 1-2
describes the various components of the evaluation board.
2014 Microchip Technology Inc.
DS50002153A-page 15
RN52 Bluetooth Audio Evaluation Kit User’s Guide
FIGURE 1-2:
RN-52-EK EVALUATION BOARD
RN-52 Module
Differential
Audio In/Out (J7)
Status
LEDs
Volume
Up
Previous
Track
Pause/Play
GPIO Connector (J10)
USB to Module
(HCI Mode)
Next
Track
USB to UART
(SPP & Command Mode)
Volume
Down
Dual Channel
Audio Inputs
EXT Connector - CMD Mode,
Event, I2S, S/PDIF (J3)
Audio In
3.5 mm Stereo Jack
Power On
Audio Out
3.5 mm Stereo Jack
EXT Connector - CMD Mode,
Event, I2S, S/PDIF (J3)
Differential Audio In/Out
(J7)
2 4 6 8 10 12 14 16
2 4 6 8 10
1 3 5 7 9 11 13 15
1 3 5 7 9
GPIO Connector
(J10)
1 2 3 4 5 6 7 8 9 10 11 12
Pin
Description
Pin
Description
Pin
Description
1
UART_TX
1
SPKR_R-
1
GND
2
VBUS
2
MIC_L+
2
GPIO2
3
UART_RX
3
SPKR_L-
3
GPIO4
4
AIO0
4
MIC_R+
4
BTN_VOLUP
5
GPIO9
5
SPKR_R+
5
BTN_NEXT
6
GND
6
MIC_L-
6
BTN_PLAY
7
GND
7
SPKR_L+
7
BTN_PREVIOUS
8
I2S_IN
8
MIC_R-
8
BTN_VOLDOWN
9
GND
9
GND
9
GPIO7
10
I2S_OUT
10
MIC_BIAS
10
GPIO6
11
GND
MIC Right (J6)
11
PWREN
12
I2S_SYNC
1 2
12
13
GND
14
I2S_CLK
Pin
Description
15
GND
1
MIC_R
16
3.3 V
2
GND
DS50002153A-page 16
3.3 V
MIC Left (J8)
1 2
Pin
Description
1
MIC_L
2
GND
2014 Microchip Technology Inc.
Overview
TABLE 1-2:
RN52 AUDIO EVALUATION KIT HARDWARE
Hardware Component
Description
®
RN-52
Bluetooth v3.0 module
USB to UART (UART)
USB to UART serial bridge for command and SPP modes
USB to Module (RSVD)
USB interface to RN-52 module for DFU, HCI, and other modes
Power On
Switch to turn on the RN-52 module. Power to the RN-52-EK is provided through USB
to UART serial bridge.
Audio Out
Audio 3.5 mm jack for audio playback
Audio In
Audio 3.5 mm jack for microphone input
Status LEDs
Red and Blue LEDs show the pairing/connection status
Play/Pause Button
Button to play or pause the audio playback
Previous Track Button
Button to skip track backwards
Next Track Button
Button to skip track forwards
Volume Up Button
Button to increase volume
Volume Down Button
Button to decrease volume
J3 Connection Header
Provides access to GPIOs, UART, and I2S. Controls switch to command mode over
GPIO9.
J7 Connection Header
Provides access to analogue audio interface
J10 Connection Header
Provides access to GPIOs used for player control buttons, power enable pin and
other GPIOs
J6 Connection Header
Provides access to microphone-right input
J8 Connection Header
Provides access to microphone-left input
1.5
RN52 EVALUATION KIT RELATED INFORMATION CONTENTS
For more details on software and other documentation, refer to the Microchip web site
at http://www.microchip.com/RN-52-EK.
Note:
2014 Microchip Technology Inc.
All the factory-shipped RN modules are available with firmware version and
profile details. For more information on RN module links, refer to “Bluetooth
Audio Module Command Reference User’s Guide and Bluetooth Command Reference and Advanced Information User’s Guide” from the Microchip web site http://www.microchip.com.
DS50002153A-page 17
RN52 Bluetooth Audio Evaluation Kit User’s Guide
NOTES:
DS50002153A-page 18
2014 Microchip Technology Inc.
RN52 BLUETOOTH AUDIO
EVALUATION KIT USER’S GUIDE
Chapter 2. Getting Started
2.1
INTRODUCTION
This chapter describes how the RN52 Audio Evaluation Kit board works using the
ASCII command set. Certain hardware and software/utilities are essential to support
the evaluation/development of demo applications. This chapter discussess the following topics:
• Hardware Requirements
• Software/Utility Requirements
• Module Configuration
2.2
HARDWARE REQUIREMENTS
Along with an USB cable RN-52-EK boards are required for evaluation hardware setup
and to run the firmware/demo appplications.
2.2.1
Hardware Setup
To setup the evaluation hardware, perform the following steps:
1. Connect the mini-USB cable to your computer’s USB port and to the evaluation
board’s UART (USB-UART bridge) connector. This connection provides power
to the board, and provides a virtual serial data port connection to the command
console and in SPP mode.
2. Prior to the evaluation, install the FTDI driver for the USB cable.
Note:
If the drivers are not automatically installed, download and install the FTDI
drivers from the Microchip web site at http://ww1.microchip.com/downloads/en/DeviceDoc/FTDI-Drivers.zip for FTDI Chipset Drivers.
3. Note down the assigned computer COM port to which the RN-52-EK is attached
through the cable connected.
4. Connect the portable mini-speaker 3.5 mm to the stereo audio out connector
(J9).
Figure 2-1 shows the completed hardware setup for the evaluation board.
2014 Microchip Technology Inc.
DS50002153A-page 19
RN52 Bluetooth Audio Evaluation Kit User’s Guide
FIGURE 2-1:
2.3
CONNECTED HARDWARE SETUP
POWER UP THE BOARD
To power-up the board, connect the board to a power source via USB, and then press
and hold the evaluation board’s power-on button until the speakers issue a two-tone
alert. The RN52 evaluation board’s status LEDs give user a visual confirmation that the
board is powered up and operating. See Table 2-1.
TABLE 2-1:
RN52 AUDIO EVALUATION BOARD STATUS LEDS
LED
2.4
Status
Description
Blue and red
Flashing
The RN52 module is discoverable
Blue only
Flashing
The module is connectable
Red only
Flashing
The module is connected
USING THE EVALUATION KIT
This section of the user’s guide assumes that users have a basic working knowledge
of Bluetooth operation and communications. To configure the Bluetooth devices, a
Bluetooth-enabled PC (either built-in or using a USB Bluetooth dongle) is required.
Only one device can be configured at a time. Once programmed and configured,
device settings are saved (independent of power down) until they are explicitly
changed or the factory defaults are restored.
The RN52 uses simple ASCII commands sent over UART interface to: set commands
to configure the Bluetooth module and get commands to echo the current configuration.
Configuration settings modified with the set command do not take effect until the module has been rebooted, even though the get command may show otherwise.
Note:
DS50002153A-page 20
For detailed information on the ASCII comands used to configure the Bluetooth module, refer to the “Bluetooth Command Reference and Advanced
Information User’s Guide”.
2014 Microchip Technology Inc.
Getting Started
2.4.1
Command Mode vs. Data Mode
The Bluetooth device operates in two modes: Data mode (default) and Command
mode. While in Data mode, the module is essentially a data pipe. When the module
receives data from SPP Bluetooth connections, it strips the Bluetooth headers and trailers and passes the user data to the UART Receive (RX) line. When data is written to
the UART Transmit (TX) line, the module constructs the Bluetooth packet and sends it
out over to the Bluetooth SPP. Thus, the entire process of sending/receiving data to the
host is transparent to the end microprocessor. Figure 2-2 illustrates the Bluetooth communication pipe.
FIGURE 2-2:
DATA & COMMAND MODES
The default configuration for the Bluetooth device is:
•
•
•
•
•
Bluetooth Slave mode
Keyboard Default Authentication mode (no pin code required)
Serial port 115,200 Kbps baud rate, 8 bits, no parity, one stop bit
Serial port flow control enabled
Low-Power mode off
The device can be configured by putting it into Command mode and sending ASCII
commands over a serial port. Once the configuration parameters are changed, the
parameters persist until it is changed. Otherwise, a Factory Reset is performed.
Note:
User can only configure the Bluetooth audio module locally using host computer’s serial port. The module cannot be configured remotely over the
Bluetooth link.
Terminal emulator application/program on PC is required to complete the setup.
Note:
2014 Microchip Technology Inc.
Depending on the operating system, the users can opt to use either the
TeraTerm (Windows OS) or CoolTerm (Mac OS-X) terminal emulator programs.
DS50002153A-page 21
RN52 Bluetooth Audio Evaluation Kit User’s Guide
2.4.2
Configure the Module Using the UART
Setup the RN-52-EK hardware as described in Section 2.2.1 “Hardware Setup”. With
the Bluetooth device connected and powered on, run a terminal emulator and open the
COM port to which the RN-52-EK link cable is connected. Configure the virtual COM
port connected to the RN-52-EK USB interface with the default settings (115,200 Kbps
baud, no parity, 8 bits, 1 stop bit).The terminal emulator’s communication settings
should be the default serial port settings.
Command mode can be switched through the UART interface via the USB connector
at any time when the device does NOT have a Bluetooth connection, as well as under
certain conditions. If the device is in configuration mode and a connection occurs, the
device exits configuration mode and data passes back and forth from the remote
device.
Note:
2.4.3
Local configuration can be used at any time when the device does NOT
have a Bluetooth connection, as well as under certain conditions. If the
device is in Configuration mode and a connection occurs, the device exits
Configuration mode and data passes back and forth from the remote
device.
Enter Command Mode
The RN52 module enters Command mode when GPIO09 goes low. The RN52 module
leaves command mode and enters data mode when GPIO09 goes high. With the
RN-52-EK evaluation board, use a jumper to switch between command and data
modes.
Launch a terminal emulator and specify the adapter’s default settings. Figure 2-3
shows the serial port settings dialog box for TeraTerm (open this dialog box by choosing
Setup > Serial Port).
FIGURE 2-3:
SERIAL PORT SETTINGS IN TERATERM
To place the module on the RN-52-EK evaluation board into Command mode, connect
a jumper to header pins 5 (GPIO9) and 6 (GND) on J3. Refer to Figure 2-4 and its Connector-Pin details. After entering Command mode, the module sends CMD to the UART
as acknowledgement.
DS50002153A-page 22
2014 Microchip Technology Inc.
Getting Started
FIGURE 2-4:
GPIO9 LOCATION
GPIO9
Type the following commands into the Tera Term console:
+
// Turn on local echo
v
// Display the firmware version
d
// Display the current settings
q
// Show the connection status
To switch into Data mode, remove the jumper from header pins 5 (GPIO9) and 6 (GND)
on J3. When leaving Command mode, the module sends END to the UART. Figure 2-5
shows the Tera Term console after performing these actions.
FIGURE 2-5:
2014 Microchip Technology Inc.
COMMAND MODE ACTIONS IN A SERIALTERMINAL
EMULATOR
DS50002153A-page 23
RN52 Bluetooth Audio Evaluation Kit User’s Guide
2.4.4
Making a Bluetooth Connection
By default, the Bluetooth adapter acts as a slave and the PC is the master. Connect to
the Bluetooth adapter using the computer’s Bluetooth device manager, which varies
depending on the operating system. Regardless of the operating system, the process
is the same: Discovery, Pairing, and Connecting.
2.4.4.1
DISCOVERY
When the RN-52-EK is turned on, the Blue and Red LED should blink and the adapter
should be discoverable. Open the host PC’s Bluetooth device manager and choose to
add a new device. The Bluetooth device manager’s icon is located at the bottom right
corner on the host’s computer screen in the taskbar for Windows; and at the upper right
corner for Mac OS-X. The Bluetooth device manager displays a list of discoverable
Bluetooth devices. The board displays as RN52-XXXX, where XXXX is the last 4-digits
of the module’s MAC address.
2.4.4.2
PAIRING
The module supports the following pairing methods:
• Legacy Pairing using PIN code
• Secure Simple Pairing (SSP)
- Just Works
- Numeric Comparison using Yes/No Keyboard IO
The RN-52 module can be configured through command console to use either of the
above pairing methods.
To pair with the module, double click its name in the Bluetooth device scan list. The
default authentication mode is Just Works which requires no user interaction. The link
key is generated, stored and a connection gets established. For subsequent connections, the stored link keys are compared and the connection is established. The module’s firmware automatically stores up to 8 pairings from remote hosts in a first in, first
out fashion.
If the remote Bluetooth device does not require authentication, a connection can occur
without the pairing process. However, the Bluetooth specification requires that if either
device involved in the pairing process requires authentication, the other device must
participate to ensure a secure link. Microchip modules default to Just Works mode and
do not require authentication.
In numeric comparison using yes/no keyboard IO mode, the user is shown a 6-digit
number on both the module console and the pairing device display. The user has to verify that the numbers match or do not match on both devices by entering yes or no. A
command is provided to enter yes or no on the module command console.
In legacy pairing mode, the pairing device requests a 4-digit fixed PIN for authentication. In this case, use the module’s default PIN code, 1234, as the pass key. After entering the PIN code, the Bluetooth devices are compared. If a match is found, a link key
is generated and stored. Usually, but not always, the remote device stores the link key.
For subsequent connections, the devices compare link keys. If correct, there is no need
to re-enter the PIN code. The PIN code can be set as desired using command console.
To remove the stored link key on the remote device, you typically “unpair” or remove
the device from the Bluetooth manager. The pairing information can be reset by executing the reset Paired Device List (PDL) on the command console. You can change
the PIN code to remove the link key on the Bluetooth adapter, forcing a new pin code
exchange to occur upon subsequent connection attempts.
DS50002153A-page 24
2014 Microchip Technology Inc.
Getting Started
Figure 2-6 shows examples of Bluetooth devices discovered list and pair/connect interfaces.
Note:
For detailed information on the pairing mode commands, refer to the “Bluetooth Command Reference and Advanced Information User’s Guide”.
FIGURE 2-6:
2.4.4.3
PAIRING/CONNECTING WITH THE BLUETOOTH® ADAPTER
CONNECTING
If the pairing with the device is successful, the module can connect to the device. Click
connect using the pair/connect interface to establish a connection.
Once connected, the module enables Advanced Audio Distribution Profile (A2DP) for
audio playback and Audio Video Remote Control Profile (AVRCP) for player control.
Additionally, a Serial Port Profile (SPP) link can be established by opening the virtual
COM port available on the RN52 module from a PC over its Bluetooth device.
When connecting to a PC using SPP, after the Bluetooth device manager completes
pairing/connecting, it issues a message that the Bluetooth device is installed on COM
port X where the specific COM port is unique to the user’s computer. After connecting
successfully, the data can be transmitted and received on the Bluetooth COM port link
in Data mode.
In some cases, the Bluetooth device manager creates two COM ports. In this situation,
use the incoming port to wait for the module to initiate a connection. Open the outgoing
port to establish a connection to the module.
2014 Microchip Technology Inc.
DS50002153A-page 25
RN52 Bluetooth Audio Evaluation Kit User’s Guide
NOTES:
DS50002153A-page 26
2014 Microchip Technology Inc.
RN52 BLUETOOTH AUDIO
EVALUATION KIT USER’S GUIDE
Chapter 3. Application Demonstrations
3.1
AUDIO DEMONSTRATION
In this demonstration, user can play an audio stream on the RN-52-EK using a computer or smartphone. The evaluation board broadcasts the audio through the
mini-speakers. The following are the steps to perform the demonstration:
1. Connect the RN-52-EK to a host device (PC or smartphone) that has an audio
source.
2. Connect a pair of headphones or self-powered speakers to the RN-52-EK
board’s audio out connector (J9).
3. Open the audio source on the host device. Microchip recommends using a media
player (e.g., Microsoft Media Player, iTunes, and Android).
4. Start the audio stream on the media player.
When the RN-52-EK is connected to an audio source compatible with Bluetooth
AVRCP, the audio control buttons are used to:
•
•
•
•
Control the volume output
Go to the previous track
Go to the next track
Start/stop playing the current track
Figure 3-1 shows the location of the audio control buttons.
FIGURE 3-1:
AUDIO CONTROL BUTTONS
Volume
Up
Previous
Track
Pause/Play
Next
Track
Volume
Down
The RN-52 module supports SBC codec, AAC and aptX optional codecs for audio playback using A2DP profile. The optional codec is negotiated during connection if supported on the connecting device. If optional codecs are not supported, the RN-52
2014 Microchip Technology Inc.
DS50002153A-page 27
RN52 Bluetooth Audio Evaluation Kit User’s Guide
defaults to the mandatory SBC codec. The optional codecs can be enabled or disabled
using the Command mode. For more information on the audio codecs, refer to the
“RN52 Bluetooth Audio Module Data Sheet”.
3.2
HSP/HFP DEMONSTRATION
In this demonstration, the RN52EK user can explore the hands-free profile setting to
receive an incoming voice call from a paired smartphone. This demonstration requires
a microphone. It would be good to use a PC headset/microphone (with two-plugs). The
following are the steps to perform the demonstration:
1. Connect the RN-52-EK via a USB cable to a PC that has a terminal emulator.
2. Connect the headset/microphone to the RN-52-EK board’s audio out connector
(J9) and audio in (J5) respectively.
3. From the phone’s Bluetooth control panel, pair and connect the RN-52-EK to a
smartphone that supports the A2DP and HFP/HSP Bluetooth profiles.
4. On host PC, identify the virtual serial port connection to the RN-52-EK UART
USB port.
5. In a terminal emulator, open this port with the settings: 115,200 Kbps baud rate,
8 bits, no parity, one stop bit.
6. Connect a jumper to header pins 5 and 6 (GPIO9) on J3. Refer back to
Figure 2-4. The terminal emulator displays CMD, indicating that the RN52 module
is in command mode and the user can connect to it via the UART.
7. Try the following commands:
D—Display settings
H—Help
Q—Connection status (a non-zero value indicates the device is connected)
From CMD mode in the terminal emulator, enter the “Q” command to retrieve
connection status. The second byte should indicate state “03” (connected).
8. From another phone, initiate a call to the smartphone that is paired with the
RN-52-EK. The A2DP stream pauses and the ringtone plays on the headset/microphone.
9. The music pauses on the smartphone and the ringtone plays.
10. From CMD mode in the terminal emulator, enter the “Q” command to retrieve
connection status. The second byte should indicate state “05” (incoming call).
11. From CMD mode in the terminal emulator, enter the “C” command to accept the
incoming call.
12. From CMD mode in the terminal emulator, enter the “Q” command to retrieve
connection status. The second byte should indicate state “06” (active call).
13. End the call from smartphone. The call can also be dropped using the “E” command from CMD mode.
14. Issue “Q” command in CMD mode, the second byte must state “0C” to indicate
A2DP music stream is playing.
15. Follow the instructions on Section 3.1 “Audio Demonstration” and initiate an
A2DP audio stream.
The RN-52 module supports cVc voice enhancement. It includes echo cancellation,
noise suppression, and optional automatic gain control algorithms. The cVc voice
enhancement can be enabled or disabled using the Command mode. For more information on cVc, refer to the “RN52 Bluetooth Audio Module Data Sheet”.
DS50002153A-page 28
2014 Microchip Technology Inc.
RN52 BLUETOOTH AUDIO
EVALUATION KIT USER’S GUIDE
Appendix A. RN52 Audio Evaluation Kits Schematics
A.1
INTRODUCTION
This appendix provides the RN52 Evaluation Boards schematic, PCB layout and Bill of
Materials (BOM).
•
•
•
•
A.2
RN52 Evaluation Kits Schematic
RN52 Evaluation Kits PCB Layout and Assemble Drawings
RN52 Evaluation Kits Bill of Materials
RN52 Evaluation Kits Physical Dimensions
RN52 EVALUATION KITS SCHEMATIC
Figure A-1 shows the RN-52-EK schematic.
2014 Microchip Technology Inc.
DS50002153A-page 29
RN52 Bluetooth Audio Evaluation Kit User’s Guide
PCM_IN
PCM_OUT
PCM_SYNC
PCM_CL K
28
30
SPI _SS
31
29
SPI _SCK
SPI _MI SO
SPI _MOSI
MI C_L +
MI C_BI AS
L ED0
36
35
34
33
32
MI C_R+
37
L ED1
MI C_L 38
39
MI C_R-
SPKR_L 42
41
40
SPKR_R+
43
SPKR_R-
SPKR_L +
44
SPI _SS
SPI_MISO
SPI_SCK
SPI_MOSI
L ED1
L ED0
MIC_BIAS
MIC_L+
MIC_R+
MIC_LMIC_RAGND
SPKR_RSPKR_LSPKR_R+
SPKR_L +
GND
L ED0
L ED1
3.3V
R8
47R
D3
Blue LED
3.3V
R9
470
D2
PI O3
Red LED
R2
47k
M1
RN52 Module
UART_RX
UART_CTS
17
UART_RTS
UART_TX
14
R1
S5
C4
10nF
Wake
USBDUSBD+
22k
USBD-
UART_TX
UART_RX
PI O9
PI O9
USBD+
12
3.3V
1
3
5
7
9
11
13
15
D1
GND
VBUS
MBR120
J2
1
VBUS
2
D3
6
D+
MTAB
5
VBUS
AI O0
3.3V
PCM_I N
PCM_OUT
PCM_SYNC
PCM_CL K
C9
47nF
47nF
S6
Next
S2
Vol Down
C12
1uF
USB Mini B / RSVD USB
2
4
6
8
10
12
14
16
C8
47nF
C10
47nF
C11
MI C_BI AS
J3
EXT Connector
MI C_L -
11
BTN_PLAY
MI C_R-
MI C_L +
MI C_R+
BTN_NEXT
BTN_VOL DOWN
8
BTN_VOL UP
10
7
BTN_PREVI OUS
6
S3
Play / Pause
S4
Vol Up
PI O4
PI O2
AI O0
3
PI O3
1
2
4
5
9
13
15
16
PI O7
PI O6
PWREN
UART_RX
UART_TX
UART_CTS
UART_RTS
USBD+
USBDGPIO9
GPIO10
GPIO11
GPIO13
GPIO5
GPIO12
GPIO4
AIO0
GPIO2
GPIO3
GND
Prev
S1
R7
2k2
VBUS
MI C_R
MI C_L
SPKR_RSPKR_L SPKR_R+
SPKR_L +
R6
2k2
MI C_L
MI C_R
BTN_VOL UP
BTN_VOL DOWN
BTN_PL AY
BTN_NEXT
BTN_PREVI OUS
J11
1
2
Battery
1
3
5
7
9
J7
1
2
MI CL
J8
MI CR
1
2
J6
2
4
6
8
10
VBUS
MI C_L +
MI C_R+
MI C_L MI C_RMI C_BI AS
4J5
3
5
2
1
1
Vin
3.3V
TC1262- 3.3V
Mic
PI O2
PI O4
BTN_VOLUP
BTN_NEXT
BTN_PLAY
BTN_PREVI OUS
BTN_VOLDOWN
PI O7
PI O6
PWREN
C6
1uF
SPKR_L SPKR_L +
SPKR_R+
R70
SPKR_R-
1
2
3
4
5
6
7
8
9
10
11
12
J10
C22
1uF
C14
1uF
C21
1uF
C18
1uF
C13
1uF
2k2
R15
22k
R17
22k
R16
47k
R11
47k
R13
22k
R12
22k
C2
VBUS
100nF
UART_RX
UART_TX
UART_CTS
UART_RTS
30
TXD
2
RXD
32
RTS
8
CTS
31
DTR
6
DSR
7
DCD
3
RI
3.3V
U2
3
C7
1uF
SPI MASTER
1
2
3
4
5
6
J4
22
CBUS0
21
CBUS1
10
CBUS2
11
CBUS3
9
CBUS4
Vout
SPI _MI SO
SPI _MOSI
SPI _SCK
SPI _SS
3.3V
VBUS
IN2-
IN2+
BYPASS
IN1+
IN1-
C15
10uF
2
3
4
7
8
47k
R14
10
R10
47k
C3
6
1
C16
100nF
Vo1
9
U4
TPA6112
100nF
C1
28
27
18
14
15
U1
FT232RQ
100nF
USBDM
RESET
USBDP
OSCI
OSCO
Vo2
SHUTDOWN
V DD
VBUS
C20
100uF
C23
100uF
C17
100uF
C19
100uF
J1
6
Headphones
1J9
2
5
3
4
MTAB
USB Mini B / CSR UART
GND
1
VBUS
2
D3
D+
5
2014 Microchip Technology Inc.
DS50002153A-page 30
PA D
11
GND
5
3V 3OUT
1
V CCIO
19
V CC
20
GND
17
GND
4
GND
24
A GND
33
T HPA D
16
T E ST
26
T ab
4
GND
2
18
GND
19
GPIO7
21
GPIO6
20
PWR E N
49
GND
50
GND
23
V DD
22
GND
48
PCM_IN
26
PCM_CL K
24
PCM_OUT
GND
47
GND
46
PCM_SY NC
27
GND
25
GND
45
RN52 EVALUATION BOARD SCHEMATIC
FIGURE A-1:
RN52 Audio Evaluation Kits Schematics
A.3
RN52 EVALUATION KITS PCB LAYOUT AND ASSEMBLE DRAWINGS
The RN52 Evaluation Board is a 2-layer, FR4, 0.062 inch, plated through a hole PCB
construction. Figure A-2 through Figure A-7 show the PCB constructions and Assembly Drawings.
FIGURE A-2:
RN52 EVALUATION BOARD TOP SILKSCREEN
FIGURE A-3:
RN52 EVALUATION BOARD BOTTOM SILKSCREEN
2014 Microchip Technology Inc.
DS50002153A-page 31
RN52 Bluetooth Audio Evaluation Kit User’s Guide
FIGURE A-4:
RN52 EVALUATION BOARD TOP COPPER
FIGURE A-5:
RN52 EVALUATION BOARD BOTTOM COPPER
DS50002153A-page 32
2014 Microchip Technology Inc.
RN52 Audio Evaluation Kits Schematics
FIGURE A-6:
RN52 EVALUATION BOARD TOP ASSEMBLY
FIGURE A-7:
RN52 EVALUATION BOARD BOTTOM ASSEMBLY
2014 Microchip Technology Inc.
DS50002153A-page 33
RN52 Bluetooth Audio Evaluation Kit User’s Guide
A.4
RN52 EVALUATION KITS BILL OF MATERIALS
TABLE A-1:
RN-52-EK BOARD BILL OF MATERIALS
Reference
C1, C2, C3
Value
Description
Vendor
100 nF
Capacitor, Ceramic, -20%, 80%, 16V, Y5V,
0402
C4
10 nF
Capacitor, Ceramic, 10%, 50V, X7R, 0402
Yageo
CC0402KRX7R9BB103
C6, C7, C18
1 F
Capacitor, Ceramic, -20% / 80%, 16V, Y5V,
0603
Yageo
CC0603ZRY5V7BB105
C8, C9, C10,
C11
47 nF
Capacitor, Ceramic, 10%, 16V, X7R, 0402
Taiyo Yuden
EMK105B7473KV-F
Capacitor, Ceramic, 10%, 16V, X5R, 0402
TDK Corporation
C1005X5R1C105K
C12, C13, C14, 1 F
C21, C22
Yageo
Vendor P/N
CC0402ZRY5V7BB104
C15
10 F
Capacitor, Ceramic, 20%, 10V, X5R, 0603
TDK Corporation
C1608X5R1A106M
C16
100 nF
Capacitor, Ceramic, -20% / 80%, 16V, Y5V,
0603
Yageo
CC0603ZRY5V7BB104
C17, C19, C20, 100 F
C23
Capacitor, Ceramic, -20%, +80%, 6.3V, Y5V, Taiyo Yuden
1206
D1
MBR120
Schottky Diode, 1 A, 20 V, SOD-123F
ON Semiconductor MBR120ESFT1G
D2
Red LED
Clear, Red LED, 10 mA, 1.8 V, 638 nm, 130
degrees, 1206
Lite-On Inc
LTST-C150CKT
D3
Blue LED
Clear, Blue LED, 20 mA, 3.3 V, 470 nm, 130
degrees, 1206
Lite-On Inc
LTST-C150TBKT
J1, J2
USB Mini B / CSR Connector USB RCPT MINI B 5PS R/A
UART, USB Mini B / SMD
CSR USB
JAE
DX2R005HN2E700
J3
–
Generic 0.1" Pitch 2x8 Male Pin Header
–
–
–
JMK325F107ZM-T
J4
–
Generic 0.1" Pitch 1x6 Male Pin Header
–
J5
Audio Jack, Pink
Connector, jack stereo, 5POS 3.5 mm SMD
CUI, Inc.
SJ1-3515-SMT-PI
J9
Audio Jack, Green
Connector, jack stereo, 5POS 3.5 mm SMD
CUI, Inc.
SJ1-3515-SMT-GR
M1
–
RN-52 Module
Microchip
RN-52
R1, R12, R13,
R15, R17
22 k
Res, 5%, 0.1 W, 0402
Panasonic - ECG
ERJ-2GEJ223X
R2, R10, R11,
R14, R16
47 k
Res, 5%, 0.1 W, 0402
Panasonic - ECG
ERJ-2GEJ473X
R6, R7, R70
2k2
Res, 5%, 0.1 W, 0402
Panasonic - ECG
ERJ-2GEJ222X
R8
47R
Res, 5%, 0.1 W, 0402
Panasonic - ECG
ERJ-2GEJ470X
R9
470
Res, 5%, 0.1 W, 0402
Panasonic - ECG
ERJ-2GEJ471X
S1, S2, S3, S4, Push button
S5, S6
Tactile and Jog Switches 6x6 260gf Red
SMT
Mountain Switch
101-TS6923T2605-EV
U1
FT232RQ
IC USB FS Serial UART 32-QFN
FTDI
FT232RQ-REEL
U2
TC1262-3.3V
Linear Voltage Regulator
Microchip
TC1262-3.3VDBTR
U4
TPA6112
IC Amp Audio Power .15 W AB 10MSOP
Texas Instruments
TPA6112A2DGQR
DS50002153A-page 34
2014 Microchip Technology Inc.
RN52 Audio Evaluation Kits Schematics
A.5
RN52 EVALUATION KITS PHYSICAL DIMENSIONS
Figure A-8 shows the physical dimensions of the RN52 Evaluation Board.
FIGURE A-8:
RN-52 PHYSICAL DIMENSIONS
2014 Microchip Technology Inc.
DS50002153A-page 35
RN52 Bluetooth Audio Evaluation Kit User’s Guide
NOTES:
DS50002153A-page 36
2014 Microchip Technology Inc.
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
2355 West Chandler Blvd.
Chandler, AZ 85224-6199
Tel: 480-792-7200
Fax: 480-792-7277
Technical Support:
http://www.microchip.com/
support
Web Address:
www.microchip.com
Asia Pacific Office
Suites 3707-14, 37th Floor
Tower 6, The Gateway
Harbour City, Kowloon
Hong Kong
Tel: 852-2401-1200
Fax: 852-2401-3431
India - Bangalore
Tel: 91-80-3090-4444
Fax: 91-80-3090-4123
Austria - Wels
Tel: 43-7242-2244-39
Fax: 43-7242-2244-393
Denmark - Copenhagen
Tel: 45-4450-2828
Fax: 45-4485-2829
Atlanta
Duluth, GA
Tel: 678-957-9614
Fax: 678-957-1455
Austin, TX
Tel: 512-257-3370
Boston
Westborough, MA
Tel: 774-760-0087
Fax: 774-760-0088
Chicago
Itasca, IL
Tel: 630-285-0071
Fax: 630-285-0075
Cleveland
Independence, OH
Tel: 216-447-0464
Fax: 216-447-0643
Dallas
Addison, TX
Tel: 972-818-7423
Fax: 972-818-2924
Detroit
Novi, MI
Tel: 248-848-4000
Houston, TX
Tel: 281-894-5983
Indianapolis
Noblesville, IN
Tel: 317-773-8323
Fax: 317-773-5453
Los Angeles
Mission Viejo, CA
Tel: 949-462-9523
Fax: 949-462-9608
New York, NY
Tel: 631-435-6000
San Jose, CA
Tel: 408-735-9110
Canada - Toronto
Tel: 905-673-0699
Fax: 905-673-6509
DS50002153A-page 37
Australia - Sydney
Tel: 61-2-9868-6733
Fax: 61-2-9868-6755
China - Beijing
Tel: 86-10-8569-7000
Fax: 86-10-8528-2104
China - Chengdu
Tel: 86-28-8665-5511
Fax: 86-28-8665-7889
China - Chongqing
Tel: 86-23-8980-9588
Fax: 86-23-8980-9500
China - Hangzhou
Tel: 86-571-8792-8115
Fax: 86-571-8792-8116
China - Hong Kong SAR
Tel: 852-2943-5100
Fax: 852-2401-3431
China - Nanjing
Tel: 86-25-8473-2460
Fax: 86-25-8473-2470
China - Qingdao
Tel: 86-532-8502-7355
Fax: 86-532-8502-7205
China - Shanghai
Tel: 86-21-5407-5533
Fax: 86-21-5407-5066
China - Shenyang
Tel: 86-24-2334-2829
Fax: 86-24-2334-2393
China - Shenzhen
Tel: 86-755-8864-2200
Fax: 86-755-8203-1760
China - Wuhan
Tel: 86-27-5980-5300
Fax: 86-27-5980-5118
China - Xian
Tel: 86-29-8833-7252
Fax: 86-29-8833-7256
India - New Delhi
Tel: 91-11-4160-8631
Fax: 91-11-4160-8632
India - Pune
Tel: 91-20-3019-1500
Japan - Osaka
Tel: 81-6-6152-7160
Fax: 81-6-6152-9310
Japan - Tokyo
Tel: 81-3-6880- 3770
Fax: 81-3-6880-3771
Korea - Daegu
Tel: 82-53-744-4301
Fax: 82-53-744-4302
Korea - Seoul
Tel: 82-2-554-7200
Fax: 82-2-558-5932 or
82-2-558-5934
France - Paris
Tel: 33-1-69-53-63-20
Fax: 33-1-69-30-90-79
Germany - Dusseldorf
Tel: 49-2129-3766400
Germany - Munich
Tel: 49-89-627-144-0
Fax: 49-89-627-144-44
Germany - Pforzheim
Tel: 49-7231-424750
Italy - Milan
Tel: 39-0331-742611
Fax: 39-0331-466781
Italy - Venice
Tel: 39-049-7625286
Malaysia - Kuala Lumpur
Tel: 60-3-6201-9857
Fax: 60-3-6201-9859
Netherlands - Drunen
Tel: 31-416-690399
Fax: 31-416-690340
Malaysia - Penang
Tel: 60-4-227-8870
Fax: 60-4-227-4068
Poland - Warsaw
Tel: 48-22-3325737
Philippines - Manila
Tel: 63-2-634-9065
Fax: 63-2-634-9069
Singapore
Tel: 65-6334-8870
Fax: 65-6334-8850
Taiwan - Hsin Chu
Tel: 886-3-5778-366
Fax: 886-3-5770-955
Spain - Madrid
Tel: 34-91-708-08-90
Fax: 34-91-708-08-91
Sweden - Stockholm
Tel: 46-8-5090-4654
UK - Wokingham
Tel: 44-118-921-5800
Fax: 44-118-921-5820
Taiwan - Kaohsiung
Tel: 886-7-213-7830
Taiwan - Taipei
Tel: 886-2-2508-8600
Fax: 886-2-2508-0102
Thailand - Bangkok
Tel: 66-2-694-1351
Fax: 66-2-694-1350
China - Xiamen
Tel: 86-592-2388138
Fax: 86-592-2388130
China - Zhuhai
Tel: 86-756-3210040
Fax: 86-756-3210049
03/13/14
2014 Microchip Technology Inc.