WAV/AD4 SD Card Module

$7.90

Units in Stock: 87
Date Added: Thursday 10 June, 2010

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Product Description:

Product features

Support maximum 1G SD card ;
Support 4Bit ADPCM format;
Support auto-recognize voice file;
Support AD4 with audio sampling rate of 6KHz ~ 32KHz and 36KHz;
Support WAV with audio sampling rate of 6KHz ~ 32KHz;
16bitDAC and PWM audio output;
Maximum store up to 512 voice segment;
Two module types of WTV020-SD-20S and WTV020-SD-16P ;
Support Micro-processor and key control;
Support call and play of any voice pieces;
Auto-save operation data while power-down;
Directly download voice file to SD card without any auxiliary software;
Support Files combination play, including mute combination;
Operating voltage: DC2.5 ~ 3.6V;
Static Current: 16uA (while without SD card)

Product overview

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

WTV020-SD voice module adopts WTV020SD-20S as core procesing chip. It supports MP3 control mode, key control models (3-voice and 5-voice),pwer control mode or two-line serial control mode . Control mode is set while producing, which can not be changed through configuring.

MP3 control mode: play / stop, next, last, volume +, volume - and so on.
Key control mode (5 voice): Three sub-control methods, 1. Key can not be duplicate-triggered by pulse; 2. All keys are play / stop trigger (No single recycled); 3.All keys are Play/Stop (single can be recycled).
Loop play mode: After powered on, no need to trigger any I / O port, directly play all the voice in SD card, with functions to record playing points while power off, from which it plays while powered on again. Two sub-control modes, 1. P04 has pulse-triggered play/pause function; 2. P05 has level-triggered play/pause function.
Two-line serial control mode: controlled by MCU clock via CLK and DI data lines. Free to play voice at any address. In this mode, it has voice combination play function.

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

Please note: SD card is not included in the product list. Modules of MP3 controlling mode will be delivered by default if there is no special requirement!