MIKROE-1205 mikroElektronika, MIKROE-1205 Datasheet - Page 28

• Manufacturer Part Number: MIKROE-1205
• Description: Development Boards & Kits - PIC / DSPIC EasyPIC FUSION v7 dsPIC33 PIC24 PIC32
• Manufacturer: mikroElektronika

Specifications of MIKROE-1205

• Rohs: yes
• Product: Development Boards
• Tool Is For Evaluation Of: PIC24x, dsPIC33x, PIC32MX4xx, PIC32MX7xx
• Interface Type: CAN, I2C, SPI
• Operating Supply Voltage: 7 V to 23 V
• Data Bus Width: 16 bit, 32 bit
• Dimensions: 266 mm x 220 mm
• For Use With: PIC24x, dsPIC33x, PIC32MX4xx, PIC32MX7xx

page 28
Figure 14-1: Audio IN/OUT
connection schematic
MICP
MICN
MP3-RST#
MP3-DREQ
DATA BUS
R8
100k
VCC-3.3V
R20
100K
10
11
12
1
2
3
4
5
6
7
8
9
MCP/LN1
MICN
XRESET
DGND0
CVDD0
IOVDD0
CVDD1
DREQ
GPIO2
GPIO3
GPIO6
GPIO7
22pF
C12
1uF
R22
12.288MHz
C1
X1
VS1053
1M
C13
22pF
CVDD3
GPIO4
GPIO1
GPIO0
XTEST
GPIO5
SCLK
GND
SO
TX
RX
SCK
MISO
MOSI
RG12
RG13
RG14
RG15
U1
SI
VCC-1.8V
36
35
34
33
32
31
30
29
28
27
26
25
SW13
VCC-3.3V
R4
10K
VCC-3.3V
R9 27
R16
10K
MP3-DREQ
MP3-RST#
PH_MISO
PH_MOSI
PH_MISO
PH_MOSI
MP3-CS#
MP3-DCS
PH_SCK
PH_SCK
L
R
GBUF
MICP
MICN
C10 1uF
VCC-3.3V
C8 1uF
E4
10uF
R5
10
C3
47nF
C14
100nF
Audio I/O
C9
100pF
It's hard to imagine modern multimedia devices without high quality audio reproduction
modules. Sounds and music are almost as important as graphical user interfaces. Along
with other multimedia modules, EasyPIC Fusion
audio codec. It features Ogg Vorbis/MP3/AAC/WMA/FLAC/WAV/MIDI audio decoder, as
well as an PCM/IMA ADPCM/Ogg Vorbis encoder on a single chip. Board also contains
two stereo audio connectors for interfacing with standard 3.5mm stereo audio
jacks. VS1053 receives the input bit stream through a serial input bus, which it listens
to as a system slave. The input stream is decoded and passed through a digital volume
control to an 18-bit oversampling, multi-bit, sigma-delta Digital to Analog Converter
(DAC). The decoding is controlled via a
serial control bus. In addition to the basic
decoding, it is possible to add application
specific features like DSP effects to the
user RAM memory. You can build music
players, audio recording devices, internet
radio player applications, and much
more.
R6
20
C4
10nF
C18
100nF
E2
10uF
R7
20
C2
10nF
E3
10uF
C19
100nF
VCC-3.3V
R1 10
R3 10
R11
1K
R13
1K
R17
1K
R19
1K
C15
100nF
CN19
PHONEJACK
CN21
MICROPHONE
C20
100nF
C16
1uF
1
2
3
AP7331-ADJ
U3
IN
GND
EN ADJ
OUT
5
4
™
In order to use Audio I/O module,
you must connect data and Audio
control lines of the microcontroller
with the VS1053 audio codec. To
do this, push SW13.1–SW13.3
and SW13.5–SW13.8 switches to
ON position. This will connect SPI
data lines with SCK, MISO and MOSI
microcontroller pins, and audio
control lines and chip select with
RG12, RG13, RG14 and RG15 pins.
Enabling Audio I/O
R24
27K4
v7 contains high-end stereo VS1053
R23
100K
R25
1K
E5
10uF
C21
100nF
Figure 14-2:
Enabling
audio codec
commu-
nication
lines
C17
100nF
C22
100nF
VCC-1.8V
C23
100nF
v7