Audio Devel Brd Info Sheet Datasheet by Microchip Technology

6‘ MICHDCHIP
Americas
Atlanta - 678-957-9614
Boston - 774-760-0087
Chicago - 630-285-0071
Cleveland - 216-447-0464
Dallas - 972-818-7423
Detroit - 248-538-2250
Indianapolis - 317-773-8323
Los Angeles - 949-462-9523
Phoenix - 480-792-7200
Santa Clara - 408-961-6444
Toronto - 905-673-0699
Europe
Austria - Wels - 43-7242-2244-39
Denmark - Copenhagen - 45-4450-2828
France - Paris - 33-1-69-53-63-20
Germany - Munich - 49-89-627-144-0
Italy - Milan - 39-0331-742611
Netherlands - Drunen - 31-416-690399
Spain - Madrid - 34-91-708-08-90
UK - Wokingham - 44-118-921-5869
Asia/Pacific
Australia - Sydney - 61-2-9868-6733
China - Beijing - 86-10-8569-2100
China - Chengdu - 86-28-8665-5511
Asia/Pacific (Continued)
China - Chongqing - 86-23-8980-9588
China - Hangzhou - 86-571-2819-3180
China - Hong Kong SAR - 852-2401-1200
China - Nanjing- 86-25-8473-2460
China - Qingdao - 86-532-8502-7355
China - Shanghai - 86-21-5407-5533
China - Shenyang - 86-24-2334-2829
China - Shenzhen - 86-755-8203-2660
China - Wuhan - 86-27-5980-5300
China - Xiamen - 86-592-2388138
China - Xian - 86-29-8833-7252
China - Zhuhai - 86-756-3210040
India - Bangalore - 91-80-3090-4444
India - New Delhi - 91-11-4160-8631
India - Pune - 91-20-2566-1512
Japan - Yokohama - 81-45-471-6166
Korea - Daegu - 82-53-744-4301
Korea - Seoul - 82-2-554-7200
Malaysia - Kuala Lumpur - 60-3-6201-9857
Malaysia - Penang - 60-4-227-8870
Philippines - Manila - 63-2-634-9065
Singapore - 65-6334-8870
Taiwan - Hsin Chu - 886-3-6578-300
Taiwan - Kaohsiung - 886-7-213-7830
Taiwan - Taipei - 886-2-2500-6610
Thailand - Bangkok - 66-2-694-1351
05/02/11
Microchip Technology Inc. • 2355 West Chandler Blvd. • Chandler, AZ 85224-6199
www.microchip.com
The Microchip name and logo, the Microchip logo, and MPLAB are registered trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries. All other trademarks mentioned herein are property of their respective
companies. © 2011, Microchip Technology Incorporated, Printed in the U.S.A. All Rights Reserved. 05/11
DS51969B
*DS51969B*
Audio Development Board Information Sheet
Features
The Audio Development Board is a high quality audio development platform using a 16-bit or 32-
bit microcontroller (MCU). The on-board high-performance MCU is ideal for complex audio
algorithms, which are computation intensive.
Features of the Audio Development Board are:
• High-performance microcontroller
• Wolfson WM8960 audio codec with up to 48 kHz sampling rate and up to 24-bit resolution,
headphone out and line-in jacks, and an on-board microphone
• TFT Color Display with 220x176 resolution
• USB and UART communication interfaces
• PICtail™ Plus expansion connector for Made for iPod®
Getting Started
The Audio Development Board is preprogrammed with an audio demonstration. Use the following
procedure to run this demonstration:
1. Power the ADB by connecting the 9V power brick provided with the ADB in the power
connector (J1).
2. Connect a pair of headphones or powered speakers into the jack labeled HP OUT (J6).
3. A line-in input to the Line IN (J5) jack can be connected or the on-board microphone (MIC) can
be used for audio input. MIC is the default audio input, but it can be changed to Line-in in the
settings.
4. A USB Flash drive must be plugged into the USB receptacle (J7) to use the record and
playback features in the demonstration.
5. Press switch S3 to navigate between the individual applications. Navigation is indicated by the
red bevel around the application icon. Descriptions of the applications are provided in Table 1.
6. Press switch S2 to select the application. The selection is confirmed by the red bevel turning
green before the next application screen is presented.
7. While the application is running, switch S1 can be pressed to return to the main menu, which
closes the application. Or alternatively, switch S4 can be used to perform a specific action
depending on the application, as described in Table 1.
TABLE 1:
Action Description Switch S4 Switch
S2, S3 Switch
S1
Record Audio from line-in or on-board
microphone is recorded and
stored on a USB Flash drive.
Stop or resume
recording. —
Back to
main
screen
Playback Audio stored on a USB Flash
drive is played back. Pause or
resume
playback.
—
Loopback Audio from line-in or
microphone is output to the
headphones.
Frequency spectrum of audio
is displayed on screen.
Mute or un-mute
playback. —
Settings Change audio input, audio in
and out volume, and
sampling frequency.
Switch between
settings options. Change audio input
between line-in and
the on-board
microphone.
Increase or decrease
audio in and out
volume.
Change audio
sampling frequency.
To get started with development, download and extract the Audio Development Board compressed
archive file from www.microchip.com/adb. Connect a debugger or programmer such as the
MPLAB® REAL ICE™ In-Circuit Emulator or ICD 3 to the RJ-45 (J3) connector. Open MPLAB and
load the ADB Demo workspace. Compile, program and run the demo. For more information on the
hardware, refer to the Audio Development Board User’s Guide (DS70662).