Select "SA9123L ASIO" in your audio software (Foobar2000, Audacity, etc.). 3. macOS and Linux
Word count: ~2,100 words. Last updated: 2025. For corrections or updates, refer to official WCH documentation or GitHub driver repositories.
| Specification | Detail | | :--- | :--- | | | Up to 24-bit / 192kHz PCM | | Digital Outputs | I2S (for internal DAC connection) & S/PDIF (Optical/Coaxial) | | Digital Inputs | I2S & S/PDIF | | USB Compliance | USB 2.0 High-Speed & USB Audio Class 1.0/2.0 | | Supported Sample Rates (kHz) | 32, 44.1, 48, 88.2, 96, 176.4, 192 | | Core Architecture | Built-in 8051 microcontroller, I2C master/slave, GPIO | | Clock Architecture | Asynchronous with internal PLL & 12MHz crystal | | Supply Voltage | 1.8V - 3.3V core; separate I/O voltage | | Package | 64-pin LQFP (7mm x 7mm) | sa9123l driver
: Often sold as a finished board with optical and I2S outputs for approximately .
: This is normal Windows behavior. You can force a static COM port assignment in Device Manager under Port Settings > Advanced > COM Port Number . Select "SA9123L ASIO" in your audio software (Foobar2000,
For engineers and hobbyists working with this chip, here are the key parameters:
The Setup.exe installer hangs, crashes, or returns an error message. Last updated: 2025
To put the SA9123L's performance in perspective, let's compare it to other common solutions.