MP3-TF-16P SD Card MP3

Technical Specifications:
Supports MP3 and WAV file decoding
Supports FAT16 and FAT32 file system
Supports sampling rates (kHz): 8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48
24-bit DAC output supports 90dB and SNR 85dB
Supports stand-alone pushbutton (AD Key) control mode
Supports serial control by microcontroller
Supports USB connection for direct file upload/download to SD card
Supports up to 32GB micro-SD card
Supports thousands of files for playback
supports random playback
Built-in 3-watt amplifier can directly drive a small speaker
30 levels adjustable volume and 6 levels adjustable EQ
Busy output available for monitoring play state
3.3V logic compatible
5V module operation
Leads: soldered goldpin connectors 2.54 mm pitch
TECHNICAL SPECIFICATIONS
Operating Voltage 4.5 – 5VDC (recommended)
MP3 Audio Formats 8/11.025/12/16/22.05/24/32/44.1/48 (kHz)
MP3 Audio Decoding 11172-3 and ISO13813-3 Layer3 audio decoding
USB Port USB 2.0
UART Port 3.3V TTL Level Serial Port
Module Dimensions 20.5 x 20.5mm
Insights

PIN DESCRIPTION
VCC Voltage in the range from 3.2 to 5.0 V.
RX Serial interface UART – receiver.
TX Serial interface UART – transmitter.
DAC_R Audio output for headphones or amplifier – right.
DAC_L Audio output for headphones or amplifier – left.
SPK2 Output for speaker with power up to 3 W.
GND Mass.
SPK1 Output for speaker with power up to 3 W.
IO1 Liberating input, short hold, switches track, long silences.
GND Mass.
IO2 Liberating input, short hold, switches track, long increases the volume.
ADKEY1 Liberating input,
ADKEY2 Liberating input
USB+ Data line of interface USB D+.
USB Data line of interface USB D-.
BUSY The status output. Low state means that the currently playing track, high on the contrary.