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