Gusside has always had a good cooperative relationship with ESS, and it is also the first batch of companies in the country to apply ES90X8 series DAC chips.
Several audio DAC products based on ES90X8 series chips have also been approved by ESS Company.
Ess to develop usb audio program information, Goethe is also the first time to understand, and actively promote collaborative development, so the first to launch related products.
U16 is a USB digital audio interface product born with the strong support of ESS Company. Its research and development process lasted nearly two years.

C16+U16 set, U16 external 10m clock, please go to a tall building
The actual shoot of DDC-U16:
Rigorous design, reasonable layout, neat workmanship, solid material

Using ES8620, the latest USB audio interface scheme of ESS Company in the United States.

Up to PCM 32bit/768KHz and DSD512, support both DoP and Native DSD.
The USB interface chip of ESS is designed for the thoroughly optimized architecture of high quality digital audio signal processing process. USB digital audio interface code is not installed on the general chip, so it has an immediate effect on the improvement of sound quality.

The SDRAM of 128MB is used as the system cache and digital audio processing FIFO. Most of the space is for the USB interface master IC internal scheduling, as far as possible to leave redundant space, to ensure that the main control IC in addition to the USB audio interface function other business logic operation will not interfere with the digital audio processing process.

In order to achieve the best digital audio performance, the FIFO capacity of digital audio processing is reduced to a minimum to ensure minimum delay and jitter performance.

In the part of USB audio interface, a FPGA is used to realize the main control IC of USB audio interface running in Slave mode.

That is, the main control IC of USB interface receives the audio clock signal generated by the clock management FPGA and outputs only the digital audio data signal, so as to reduce the interference of the digital signal introduced by the USB transmission link to the maximum extent possible.
The audio clock synthesizer of the external 10m clock part adopts two FPGA audio master clock frequency synthesizers corresponding to the 44.1KHz and 48KHz fundamental frequencies respectively. On the one hand, it avoids the crosstalk of the FPGA internal connection, on the other hand, it also tries to drain the related resources on the FPGA chip. The frequency accuracy and jitter performance of the final synthesized audio master clock signal reach the limit performance level of the current design. 
The local audio clock source uses a double femtosecond clock, and this machine uses 2 American ACCUSILICON AS318-B ultra-low phase noise crystals to cheer up the local audio clock source, RMS jitter as low as 88 femtosecond (10Hz-1MHz). 
Built-in audio special ring transformer
AP measurement
U16 supports four IIS standard outputs and switches by pressing the left button for a long time.
The following is a description of the four standards, please confirm the decoding of the line sequence and then adjust to the appropriate standard, can also ask the store to help confirm.
IIS, which is not in the following four standards, is not supported for the time being.