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SD Card MP3 Module

Features :
  • Support plug-largest-capacity of 1G SD card
  • Automatically identify audio files
  • Can load WAV audio at 6KHz ~ 16KHz sample rate
  • Can store up to 512 Section voice
  • Support for micro-processor and key control
  • With power-down save operation data function
  • Support combination of documents playback, including the mute combination
  • Quiescent Current: 16uA (do not insert SD card)
  • Support play 4 Bit ADPCM format file
  • Can load AD4 audio at 6KHz ~ 32KHz and 36KHz sampling rate
  • 16bitDAC and PWM audio output
  • With WTV020-SD-20S, WTV020-SD-16P two module types
  • Can play any paragraph of the voice
  • Can be loaded voice without software, just need to place voice into the SD card
  • Operating voltage: DC2.5 ~ 3.6V



SD Card MP3 Module

SD Card MP3 Module version of V1.1 is an updated version of V1.0 and has all of the functions of V1.0.The V1.1 has a delay by default, but if you don’t need the delay, you can remove the delay in a very easy way as below: “Please don’t detest the signal of “busy control”, then there is no delay, it is very easy to change in the code”.

Please notice that we will ship an MP3 SD Card Sound Module With a Two-Line Serial Control Mode by default, and if you need any other mode, please leave us a message or let us know when you check out.

Description :

WTV020-SD module is a reusable mass storage voice module, that can plug a maximum capacity of 1GB SD card memory and can load the WAV and AD4 audio. The voice module uses WTV020SD-20SS as the core chip, with MP3 control mode, one-to-one key control mode, power-on loop control mode and the two-line serial control mode.

Overview :

WTV020-SD module is a voice-rewritable voice module with a maximum storage capacity of up to 1GB SD card memory. It supports WAV and AD4 audio formats.

WTV020-SD voice module adopts WTV020SD-20SS as the core processing chip. It supports MP3 control mode、Key control models (5-voice)、Loop play mode and two-line serial control mode. Control mode is set while producing, which can not be changed through configuring.

Audio content updates directly to the SD card on the PC. The module supports the FAT file system. Support AD4 of 6KHz ~ 32KHz, 36KHz sampling rate and WAV audio of 6KHz ~ 16KHz sampling rate.


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