Data Sheet
Shenzhen Waytronic Electronics Co., Ltd. WT2003S-16S Chip
- 17 -
Support combination play.
Support index in folder and specify file name to play.
32 levels volume. DAC double channel output.
DC 5V power supply.
3.2. SD card version pin introduction
Pin No.
Pin name
Type
Function description
1
DACL
PWP
Audio DAC left channel output
2
DACR
AO
Audio DAC right channel output
3
VSS
AO
Ground
4
VDDIO
IO
3.3V output port
5
VDDLDO
IO
Chip main power input port(3.0~5.5V)
6
GND
I
Ground
7
P10
I
Can be used to control amplifier enable, low level when not playing,
high level when playing
8
SD-DAT
I/O
DATA interface of SD card
9
SD-CLK
I/O
CLK interface of SD card
10
SD-CMD
I/O
CMD interface of SD card
11
DM
O
USB data port
12
DP
I
USB data port
13
ADKEY
I
Key extended port
14
BUSY
I
BUSY signal (low level when not playing, high level when playing)
15
RXD
I
UART serial port RXD receive
16
TXD
PWP
UART serial port TXD send