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Description
UAC 355xB Universal Serial Bus Codec OBSOLETE UAC 355xB is Trident's new USB audio IC. It contains a highperformance stereo audio ADC / DAC, digital serial interfaces, and an additional DAC channel for the subwoofer signal. The UAC 355xB offers a programmable 5-band parametric equalizer for correcting the frequency response of the applied speaker plus adjustable dynamic low-frequency processing for the subwoofer channel. All sampling rates for USB record and playback are handled independently. The codec functionality of the UAC 355xB is extended by additional interfaces, like I2 S, allowing all kinds of digital audio processing systems to be connected to the USB, e.g. Dolby Digital or MP3 decoding chips, such as DPL 4519G / MAS 3528E, or MAS 35x9F. General-purpose inputs and outputs connect the UAC 355xB to peripheral hardware such as buttons, keyboards, LEDs etc. Via I 2 C, more complex peripherals like LCD displays can be controlled. The UAC 355xB itself can be remote-controlled via I2 C in non-USB environments. All in all, the IC is designed as the ideal connecting matrix between USB, analog and digital audio input and output, home stereo, compressed audio, and all kinds of human interface devices. Trident supplies a standard ROM firmware based on the USB Composite Class, Audio Class, and HID Class.