WTR030 is a multifunctional voice record & playback chip, specially designed for recording voice. It integrates many external circuit components: 16bitADC/DAC, microphone OPA amplifier, 16bit encoder, etc..
Can record in long distance, high definition, built in LDO3.3V output supplying power for flash, and built in 1W power amplifier able to directly drive the speaker. Control mode is simple, button control and standard SPI communication control. WTR030 can directly drive 8Ω/0.5W speaker. Support 4Mbit-64Mbit flash. Through key control, long press to record, short press to record, play, stop.
Features:
☆Working voltage: 2.5V~5V.
☆LDO output 3.3V, supplying power for flash.
☆Support 4M~64M FLASH.
☆Longest recording time: 1440 seconds.
☆Can pre-store the fixed voice, used for background music or prompt speech.
☆Recording sample rate 4KHZ~16KHZ.
☆No need to add amplifying circuit, recording distance up to 5 meters.
☆Many recording and playback modes, short press, long press, level hold etc.
☆Support standard SPI communication control.
☆LED changing with different playing volume size.
☆Can be extended to record or playback through light control.
☆Automatically into low power mode when not working.
☆Accept function customization.
Pin Description:
![WTR030 Recording Chip]( "WTR030 Recording Chip")
![WTR030 Recording Chip]( "WTR030 Recording Chip")
Application occasions:
Widely applied in recording greeting card, recording message, recording box, recording pen and other low cost recording occasions.