1, product characteristics
◎ The product supports SD card with maximum 1G capacity; ◎ Supports playback of 4Bit ADPCM format files; ◎ Automatically recognizes voice files; ◎ Can load 6KHz to 32KHz, 36KHz sampling rate AD4 audio; ◎ Loads 6KHz to 16KHz sampling rate WAV audio; ◎ 16bitDAC and PWM audio output; ◎ can store up to 512 voice segments;
◎ WTV020-SD-20S, WTV020-SD-16P two kinds of module package;
The
◎ Microprocessor and key control are supported; ◎ You can call any segment of voice for playback;
◎ Save power operation data function;
◎ Load voice without software assistance, place voice directly to SD card;
◎ support for document playback, including mute combinations;
◎ working voltage: DC2.7 ~ 3.5V; ◎ quiescent current: 3u