WTV020-SD module is a reusable mass storage voice module ,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.
Features:
- Support plug-largest-capacity of 1GB 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
- 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 directly
- Operating voltage: DC2.5 ~ 3.6V
