DM320014 [MICROCHIP]
BOARD DIGITAL AUDIO USB PIC32;
| 型号： | DM320014 |
| 厂家： | 
MICROCHIP |
| 描述： | BOARD DIGITAL AUDIO USB PIC32 |
| 文件： | 总3页 (文件大小：291K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PIC32 USB Digital Audio Accessory Board Information Sheet
Features
The PIC32 USB Digital Audio Accessory Board showcases a 16/24-bit quality digital stereo audio
development platform using the PIC32 microcontroller (MCU). It can be used for 16/24-bit stereo
audio playback and recording with a sample rate of up to 48 kHz. This accessory board is powered
by the USB Host and can be used with any personal computer (PC), tablet, gaming station, or
mobile device that supports the USB Audio Device Class. The digital audio stream is transferred
over USB isochronous transfers. The PIC32 USB Digital Audio Accessory Board features the
PIC32 MCU, which has a USB module with Host and Device capability, in addition to an SPI periph-
eral module with Audio Mode that supports I2S, LJ, RJ, DSP/PCM modes and an accurate, flexible
audio reference clock output generation module that can be used as time base for the external
codec or Digital-to-Analog Converter (DAC).
Key features of the PIC32 USB Digital Audio Accessory Board:
•
•
•
•
•
PIC32MX250F128B MCU: 40 MIPS, 128 KB of program memory and 32 KB of RAM
PIC32 I2S support (LJ, RJ, DSP/PCM modes supported) – all modes can be 16/24-bit
PIC32 reference clock output for codec master clock
Audio codec (AK4645A) with up to 48 kHz sampling rate and 16/24-bit resolution
Supported codec-based audio processing features:
-
-
-
-
5-band equalizer
Analog output mixing
Stereo separation emphasis and wind-noise filtering
Auto-level control
Americas
Asia/Pacific (Continued)
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
China - Hangzhou - 86-571-2819-3187
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 - Osaka - 81-66-152-7160
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 - 886-3-5778-366
Taiwan - Kaohsiung - 886-7-536-4818
Taiwan - Taipei - 886-2-2500-6610
Thailand - Bangkok - 66-2-694-1351
FIGURE 1:
PIC32 USB DIGITAL AUDIO ACCESSORY BOARD
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
Getting Started
The PIC32 USB Digital Audio Accessory Board is preprogrammed with a USB Audio Headset
application, which demonstrates audio playback and record. This demonstration can playback high
quality stereo audio through headphones. It can also record audio through a microphone.
Asia/Pacific
Australia - Sydney - 61-2-9868-6733
China - Beijing - 86-10-8569-2100
China - Chengdu - 86-28-8665-5511
China - Chongqing - 86-23-8980-9588
To run the demonstration, follow these steps:
1. Using the USB cable provided with the board, insert the mini-B connector end of the cable into
the receptacle labeled J1on the PIC32 USB Digital Audio Accessory Board.
2. Connect the other end of the cable to the USB port of the PC.
3. Wait for the USB audio driver to be automatically installed and the PIC32 USB Digital Audio
Accessory Board to be enumerated as a digital audio device.
4. Audio Playback:
11/29/11
a) Plug in a pair of headphones to the connector labeled HP OUT.
b) Open any music application on the PC and play music.
c) Listen to the music through a pair of headphones.
Microchip Technology Inc. • 2355 West Chandler Blvd. • Chandler, AZ 85224-6199
www.microchip.com
5. Audio Recording:
a) Plug in a microphone to either the MIC1 IN or MIC2 IN connector.
b) Open any audio record application on the PC and begin recording.
c) After recording for the desired duration, save and playback the recorded audio.
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. © 2012, Microchip Technology Incorporated, Printed in the U.S.A. All Rights Reserved. 11/11
DS52061A
To get started with development, please visit www.microchip.com/pic32tools, and click the PIC32
USB Digital Audio Accessory Board product link.
*DS52061A*
PIC32 USB Digital Audio Accessory Board Information Sheet
Schematics (Sheets 1 of 2)
U1
R6 1R
1
2
3
4
5
6
7
28
27
26
25
24
23
22
PGD/RB0
SPI_SDI
PGED1/RB0
PGEC1/RB1
SDA2/RB2
SCL2/RB3
VSS
RPA1/RA1
RA0
AVDD
C5
R7
10uF
PGC
ANO/RAO
DVDD
0R
CNB2
CNB3
MCLR
MCLR
R2 10k
AVDD
AVDD
DVDD
C1
0.1uF
R12 1R
CVDD
DVDD
D1
AVSS
Y1
RED
RED
R3
R4
1K
1K
C7
1uF
PGD/RB0
C8
10uF
C9
10uF
RB15
OSCI/RA2
OSC2/RA3
RPB15/RB15
SCK1/RB14
D2
D3
RB15
RESET
SPI_SCK
RED
R5
1K
RB13
8
9
21
20
19
18
17
16
15
SPI_LRCK
REF_CLKO
RB13
RPB4/RB4
RPA4/RA4
VDD
RPB13/RB13
VUSB
DVDD
C2
0.1uF
DVDD
10
11
12
13
14
C35
USB_D-
USB_D+
RPB11/D-/RB11
RPB10/D+/RB10
VCAP
TC1262-3.3VDB
U3
0.1uF
+5V
J2
SPI_SDO
RPB5/RB5
VBUS
USB MINI-B
DVDD
C3
USB_D-
USB_D+
10uF
CNB7
RPB7/RB7
SCL1/RB8
VSS
C10
1uF
C4
10uF
GND
I2C1_SCL
I2C1_SDA
SDA1/RB9
R18
0R
DVDD
J3
1
2
3
4
5
6
MCLR
DVDD
CW
CNB2
CNB3
400R
R8
10K
POT1
ANO/RAO
PGD/RB0
PGC
C6
1uF
CCW
CNB7
DS52061A
PIC32 USB Digital Audio Accessory Board Information Sheet
Schematics (Sheets 2 of 2)
U4
1
2
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
MPWR
MPWR
VCOM
AVSS
AVDD
RIN3
RIN1/IN1+
LIN1/IN1-
LIN2/IN2+
RIN2/IN2-
MIN
IN1+
IN1-
IN2+
IN2-
R24
C11
1uF
C19
C12
0.1uF
5.6K
2.2uF
3
LLINE_IN
C13
0.1uF
AVDD
C20
220pF
R26
10M
R25
5.6K
J4
4
10uF
(DNP)
C21
C22
C14
10uF
5
R27
5.6K
6
1uF
CVDD
I2C
LOUT
LLINE_OUT
RLINE_OUT
LLINE_IN
RLINE_IN
7
RESET
CVDD
PDN
ROUT
LIN4
C23
CVDD
R29
10M
R28
5.6K
220pF
R20
8
10uF
(DNP)
C24
R19
2.2K
CSN
2.2K
9
I2C1_SCL
I2C1_SDA
CCLK
CDTI
SDTI
RIN4
RLINE_IN
C15 1uF
10
11
12
13
14
15
MUTET
HPL
SPI_SDO
SPI_SDI
LHP1_OUT
RHP1_OUT
AVDD
CVDD
R21
R22
100K (DNP)
SDTO
LRCK
BICK
DVDD
TVDD
HPR
MPWR
MPWR
100K (DNP)
R33
2.2K
R30
2.2K
SPI_LRCK
HVDD
HVSS
C27 1uF
C25 1uF
C16
0.1uF
J6
J5
IN2-
IN1-
SPI_SCK
R23 10R
C28 1uF
C26 1uF
CVDD
TESTO
MCKI
IN2+
IN1+
R35
C17
0.1uF
R32
2.2K
R34
(DNP)
R31
16
CVDD
REF_CLKO
2.2K
17
(DNP)
C18
AK4645A
0.1uF
MPWR
MPWR
C33
10uF
R40
100R
LLINE_OUT
C29 47uF
R36 6.8R
R37 6.8R
J8
J7
R41
47K
LHP1_OUT
RHP1_OUT
R42
100R
C32
C31
0.22uF
47uF
C30
RLINE_OUT
0.22uF
R39
10R
R38
10R
R43
47K
C34
10uF
DS52061A
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