The Well-Tempered Computer, an introduction to computer audio

Wednesday, April 6, 2011

MHDT Laboratory USBridge

MHDT Laboratory's new USBridge is an asynchronous USB2.0 to S/PDIF converter capable of up to 24-bit/192kHz.  Powered by the USB port and outputs Toslink, I2S (via RJ45) and RCA (BNC optional).


USBridge uses C-Media's CM6631 as main chip.  Two 10ppm oscillators are used 49.152MHz is for 48/96/192KHz sample rate data and 45.1584MHz is for 44.1/88.2/176.4KHz data. 

  • Size: 90x3.2x95mm
  • Weight: 200g 
  • Sampling frequencies (kHz): 44.1, 48, 88.2, 96, 192
  • Resolution (bits): 16, 24 (32 bits will be available with firmware update)
  • Inputs: USB 2.0
  • Outputs: S/PDIF x1 RCA, Optical Toslink, I2S (RJ-45) 
  • S/PDIF transmitter: 3.3V 
  • I2S output voltage: 3.3V 
  • Power consumption: Standby:141mA, Operating:148mA
  • US$200