Matrix Audio Element H User Manual

USB 3.0 Interface

User Manual

English

Summary

1. Summary

In order to improve the quality of the PC USB port through the data transmission and the noise level
of power supply, element H USB 3.0 INTERFACE is made to meet the high standard requirements of
Hi-Fi audio transmission and from source signal to bring a complete change.

Using the USB 3.0 bridge chip from Texas Instruments and a Crystek CCHD-575 super-low noise
femtosecond clock, which opens up an independent data channel for USB audio stream, by the
means of bypassing from the USB controller on the motherboard, directly bridging to PCI-E port, and
to avoid sharing the data channel with other USB devices.

The multiple filter units are integrated for USB power supply, which uses the heavy current LDO chip
with 6μVRMS and the solid-state capacitor, even if it's using the internal power supply, it can also
filter the high-frequency noise of PC switching power. The USB port can supply a maximum current
at 5V 1500mA for all audio devices supplied by the USB port, as well as the measuring function to
over-current and short circuit.

The two power supply (external/internal) modes can be configured through the switch on the
dam-board. With regard to the non-USB power supply audio devices, you can switch off the power
supply of the USB port.

The four-layer PCB with high speed circuit design standard, according with the differential on the
impedance standards and line length requirements. The CNC aluminum enclosure covers the entire
board, effectively shielded radiation interference from computer chassis, meanwhile taking into
account the cooling requirements of power supply chip.

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2. Bracket

Bracket

External power supply port

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Switch for power supply mode

USB3.0 port （compatible with USB2.0/1.1/1.0）

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