WT2003HM01 High Quality Voice Module

Product Introduction

WT2003HM01 is a powerful high-quality voice module, which adopts a high-performance 32-bit processor with a maximum frequency of 120MHz. It has the characteristics of low cost, low power consumption, high reliability, and strong versatility. The module has a built-in 32Mbit Flash. Flexible control mode: supports standard asynchronous serial communication (UART). Supports SPI-Flash and U disk as storage. It has functions such as file index playback, insert, single song loop, all tracks loop, random playback, etc. 32 levels of volume are adjustable, and it can support up to 128Mbit Flash and 32G U disk.

Product Features

● Support SPI-Flash, U disk;
● Support FAT, FAT32 file system;
● Control mode: standard UART communication interface, support DMA and flow control, default baud rate 9600;
● No playback by default when powered on; with BUSY status indication, high level when BUSY is playing;
● Support switching audio output mode, sample default SPK output, if DAC output is required, please refer to audio output switching instruction (0xB6);
● The external Flash can be connected to the computer through the USB interface of the module to view or modify its content, and directly download the voice in the computer to the removable drive letter simulated by Flash (simulated U disk) (XP system, WIN7 system, WIN10 system);
● Support high-quality audio format for voice, (8kbps~320kbps) with beautiful sound;
● Working voltage: 2.6-5.0V, power supply ripple is controlled within 5%, power supply peak cannot exceed 5.5V, if used in high-voltage products, step down 5V power supply, it is recommended to increase 5V Unidirectional TVS tube, Cj junction capacitance value is selected to be about 10PF, trigger voltage is less than 7V, IPP current is greater than 25A, and the voltage corresponding to IPP current is less than 11.5V; it can support up to 128Mbit Flash and 32G USB flash drive (TF card and USB flash drive are in FAT or FAT32 format);
● Built-in 0.5W Class D amplifier;
● Adjustable volume, 32 levels of volume;
● Two 16-bit asynchronous divider timers;
● Digital audio stream, IIS supports host and slave modes;
● An IIC controller
● An infrared remote control decoder;
● 16 bit high-precision ADC;
● 16 bit high-precision DAC;
● High-power IO drive capability, up to 64mA can be directly driven;
● When using a single module (using built-in capacity), the built-in voice needs to be written before leaving the factory.
● Connect the computer via the USB interface, and the computer will display the Flash or TF card drive letter. Copy the audio directly from the computer to the drive letter. After the copy is completed, unplug the USB cable and then control the playback through the serial port, otherwise the serial port will not respond to the code;
● Support SD card/U disk offline upgrade program. It is recommended to reserve a USB interface when drawing the board;
● If the voice chip needs to be flashed, you must use the flash produced by “Weichuang”. If you do not use it for special reasons, you must hand over the business to our company and make a note. (Because if you use the flash of other companies privately, it will not work)

Pin Description