Topping U90 High Performance Usb Audio Bridge User Manual

U90 High-Performance USB Audio Bridge
User Manual

*Note: Some Android devices may not be compatible with U90.

Thank you for purchasing the Topping U90! The U90
is a high-performance USB audio bridge with coaxial, optical, AES, and IIS outputs. Rich output ports make U90 have strong usability. And it uses high-speed isolation technology, which can get rid of the ground loop noise from the PC. We believe that high-quality 1190 could bring you more fun in enjoying HIFI music. Now we recommend first reading this manual for you to correctly use all the functions of U90.

Contents list

Note: You can download the drivers and user manual on http://www.topping.audio/.

Attribute

Front panel

1-1 Sample ate indicator

*LED breathes when the input is not successfully connected

Rear panel

2-1 11S port definition settings*
2-2 115 output
2-3 AES output
2 2-4 AES output 1
2-5 Coaxial SPDIF output2
2-6 Coaxial SPDIF output
2-7 Optical SPDIF output2
2-8 Optical SPDIF output
2-9 Trigger out jack
When a device with a 12V Trigger in the jack is connected, the connected device’s power on/standby can be controlled through linked operation to this unit.
2-10 USB input
2-11 Power input (100-240VAC 50Hz/60Hz)
2-12 Power switch
*Please set up the 11S interface before using 115 output

• IIS Interface phase setting
  

  Options	Description
  IIS PHASE I STD	Standard phase
  IIS PHASE I REV	Reverse phase

  

• MCLK selection
  

  Options	Description
  MCLK SEL 122&24	IIS’s master clock output 22.5792MHz/24.576MHz
  MCLK SEL I 45&49	IIS’s master clock output 45.1584MHz/49.152MHz

• DSD flag bit setting for the IIS interface
  

  Options	Description
  DSD Flag I Pin15	Set pin 15 as the flag bit
  DSO Flag I Pin14	Set pin 14 as the flag bit

  

• DSD channel setting for the IIS interface
  

  Options			Description
  IIS DSDR	I LRCLK		DSDR using LRCLK
  IIS DSDR		I DATA	DSDR using DATA

  

Input range

Specifications