Product Summary

The UAC3556B-QI-G7 is a Micronas’ USB audio controller IC targeted a wide variety of audio applications on the USB. The UAC3556B-QI-G7 is a single-chip, high-precision digital-to-analog audio converter. The UAC3556B-QI-G7 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.

Parametrics

UAC3556B-QI-G7 absolute maximum ratings: (1)TA, Ambient Operating Temperature: 0 to 70℃; (2)TS, Storage Temperature: -40 to 125℃; (3)PPmax, Power Dissipation: 900 mW; (4)VSUPA, Analog Supply Voltage1) AVDD0/1: -0.3 to 6 V; (5)VSUPD, Digital Supply Voltage: -0.3 to 6 V; (6)VIdig, Input Voltage, all digital inputs: -0.3 to VSUPD + 0.3 V; (7)IIdig, Input Current, all digital inputs: -5 to +0.5 mA; (8)IIdig, Input Current, all digital outputs: -8 to 8 mA; (9)IOdig, Output Current, all digital outputs: -14.8 to 14.8 mA; (10)VIana, Input Voltage, all analog inputs: -0.3 to VSUPA + 0.3 V; (11)IIana, Input Current, all analog inputs: -5 to 5 mA; (12)IOaudio, Output Current, audio output2) OUTL/R: 0.2 A.

Features

UAC3556B-QI-G7 features: (1)single-chip, USB specification 1.0/1.1 compliant, stereo audio D/A converter; (2)12-Mbit/s USB transceiver; (3)adaptive isochronous endpoint for USB Audio; (4)USB-programmable vendor IDs (1024-bit EEPROM on chip); (5)four general purpose input pins and four output pins (human interface pins); (6)customizable I/O functionality by download-software; (7)supports 16-bit mono/stereo and 24-bit stereo audio data; (8)adaptive sample rate converter for 5 to 50 kHz input sampling rate; (9)audio baseband control: bass, treble, volume, and balance, additional analog volume, mute; (10)bass boost; (11)automatic gain control (AGC); (12)“PerfectSpeaker” digital speaker equalizer; (13)THD better than 0.01 %, SNR of 96 dB; (14)integrated low-power stereo headphone amplifier; (15)on-chip op amps for external analog filter; (16)analog stereo input (AUX) with source selection and mixing; (17)single 5-V power supply.

Diagrams

UAC3556B-QI-G7 block diagram