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*FEATURES *Operating Voltage Range: 3V ~ 6.5V *Single Chip, High Quality Audio/Voice Recording & Playback Solution. *No External ICs Required. *Minimum External Components. *User Friendly, Easy to Use Operation. *Programming & Development Systems Not Required. *170/ 340/ 680 sec. Voice Recording Length in aPR33A1/aPR33A2/aPR33A3 *Powerful 16-Bits Digital Audio Processor. *Nonvolatile Flash Memory Technology *No Battery Backup Required. *External Reset pin. *Powerful Power Management Unit *Very Low Standby Current: 1uA *Low Power-Down Current: 15uA *Supports Power-Down Mode for Power Saving.
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Designed with the open frame type and mount board, high power. Easy to install for the electric door lock or other automatic door lock systems with the mounting board. silver tone Total Size : 6.6 x 4 x 2.7cm/2.6'' x 1.5'' x 1''(L*W*H);Cable Length : 24cm/9.4'';Mounting Hole Size : 6.8 x 3mm/0.26" x 0.12"(L*W)
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VS1003 is an MP3 module with on-board microphone, it supports audio decoding formats of MP3, MP3 V, WMA, WAV, MIDI and the SP-MIDI.
Features
- Separate analog, digital and IO power supply; serial data and control interface (SPI).
- 1 headphones and audio output interface, the internal PLL clock frequency multiplier; high-quality stereo DAC, 16-bit adjustable-chip ADC, high-quality stereo earplugs drive (30 EURO)
- A microphone for recording, support for recording encoding format: IMA ADPCM (monaural).
- 1 ine_in input interface supports two input methods; supports MP3 and WAV streams.
- Separate analog, digital and IO power supply
- On-board 3.3V and 2.5V LDO chip AMS-1117, the largest current provide of 800mA.
- Single power supply: 5 VDC, capacitor filter.
- 12.288 MHz crystal.