Nitrogen D2

USB Audio With Dolby Digital Live and DTS Interactive Solution

Date: 09/25/2005

Version: 1.02

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For vender specific requests, customers can use an EEPROM to create vendor specific

VID / PID / Product String, and even special hardware configuration. More flexible and

customized design is possible with GPIO pin, which is accessible by USB vendor specific

request. Volume control VR input pin; a traditional speaker front panel design can be built.

Nitrogen D2 support USB standard HID Interface which provide Volume _up / Volume

_down / Playback mute Buttons and Rotary Encoder for pure digital volume control.

2.FEATURES

USB 2.0 Full Speed Compatible and USB IF certification

USB Audio Devices Class Specification Ver1.0 Compatible

USB Bus Powered 500mA, without External Power Supply

High performance 16-Bit Stereo, 48 / 44.1 KHz Sampling Rate for Audio Playback

S/PDIF Output Interface

Embedded USB Transceiver

Embedded High Performance 16-Bit Audio DAC

Embedded Digital Control Power Amplifier for Speaker Driving

Support Power Amplifier Enable / Disable Control Pin