STL display network
USB interface MP3/WMA recording/playing solution

  • Model: OTG15E

  • Outline dimension: 95mm × 90mm


  • On-board USB interface and CF card holder, support U disk, USB mobile harddisk, and connecting computer.
  • When OTG15E connects with U disk and CF card at the same time, user can copy the files of U disk to CF card and also can copy the files of CF card to U disk.
  • Support FAT12, FAT16, and FAT32 universal file formats of DOS or WINDOWS operating systems, completely compatible with computer.
  • Support the multimedia files of MP3, WMA all levels and all code flow rate. The highest code stream is 1.44Mbps.
  • Built-in real time clock, with temperature detection.
  • Built-in T9 strokes and Pinyin input methods, and user mainframe can use simple commands to modify the recorded filename easily.
  • Built-in output eliminating noise control circuit, switching is more quiet, sound effect is more excellent, and it is more suitable for the advanced professional application.
  • Use standard I 2 C communication interface, it is okay for users to connect other I 2 C chips in parallel without adding hardware interface extra.
  • With LED display used to indicate playing states.
  • Adopt single +5V power supply; inside generate +/-5V used to supply power for operational amplifier, which can get more wide dynamic range.
  • Power supply, audio input and output, and communication interface are the same with DR53E's, OTG 15E can replace DR53E as updated product.


   Application field
  • It is easy for Home audio system to be upgraded to the system supporting computer music, which can improve the grade of product.
  • The places that need to take long time to record music or speech signal.
  • The places that need to play music because of bad environment.
  • Other places playing and recording music.


   Technology parameter


current ( +5V ) (do not include CF card)
Output level 1KHz@0dB
frequency response 20Hz ~ 20KHz
Signal-to-noise @0dB(CCIR)
Working temperature
-40 ℃
80 ℃


   Related resource


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