SA9227 USB Audio Streaming Controller

Overview

The SA9227 product entry provides documentation for the SA9227A USB audio streaming controller. Check this device revision against your design before using the reference document.

Features

• USB 2.0 High-Speed operation with USB Audio Class 1.0 and 2.0 support.
• Asynchronous audio operation using a local clock, with recording and playback endpoints.
• PCM audio at 16, 24 or 32 bits, up to 384 kHz.
• Two I²S input pairs and two output pairs with independent sample rates.
• Native DSD64/128/256 and DoP64/128 in asynchronous mode.
• External DSD DAC interface with left/right data-line swapping.
• S/PDIF transmit and receive interfaces, including AES/EBU and SCMS support.
• I²C and GPIO control, plus a HID interrupt endpoint.
• 64-pin LQFP package.

Applications

Use the controller in USB audio interfaces, stereo playback and recording devices, and audio accessories. The reference PDF covers clocking, audio connections and pin assignments.

Technical support

For samples, device selection or design questions, contact Pawpaw Technology. Include your required audio formats and interfaces so our team can assess the application.