The UAC 3552A is the first member of Micronas’ USB audio controller family of ICs targeting a wide variety of audio applications on the USB. The UAC 3552A is a single-chip, high-precision digital-to-analog audio converter. It includes a high-quality audio sample rate converter and is able to support a wide range of sample rates, as well as different audio formats.

FEATUREs
– single-chip, USB specification 1.0/1.1 compliant, stereo audio D/A converter
– 12-Mbit/s USB transceiver
– adaptive isochronous endpoint for USB Audio
– USB-programmable vendor IDs (1024-bit EEPROM on chip)
– four general purpose input pins and four output pins (human interface pins)
– customizable I/O functionality by download-software
– supports 16-bit mono/stereo and 24-bit stereo audio data
– adaptive sample rate converter for 5 to 50 kHz input sampling rate
– audio baseband control: bass, treble, volume, and balance, additional analog volume, mute
– bass boost
– automatic gain control (AGC)
– “PerfectSpeaker” digital speaker equalizer
– THD better than 0.01 %, SNR of 96 dB
– integrated low-power stereo headphone amplifier
– on-chip op amps for external analog filter
– analog stereo input (AUX) with source selection and mixing
– single 5-V power supply