Data Sheet
Shenzhen Waytronic Electronics Co., Ltd. WT2003S-16S Chip
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2. Part 2 Simulated U Disk version
This part mainly introduces current simulated U disk features.
2.1. Simulated U Disk version features
Support SPI-FLASH, not support micro SD card.
Standard UART communication interface. Can achieve special address play, special inter-cut
address play, volume levels, next/ previous, play/ pause, cycle model, etc.
Default bit rate is 9600.
Not play by default with power on.
BUSY status indication, high level when playing.
Available to connect computer via USB interface. Download the audio of computer into FLASH
simulated removable drive(simulated U disk) through USB interface (XP system, WIN7 system,
WIN8 system).
Support mp3 audio format, 8KBPS~128KBPS.
SPI-FLASH support 128M maximally.
DAC double channels output.
32 levels volume.
2.2. 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
5V main power input port