The SA9123L is the Honda Civic of USB audio bridges—reliable, cheap, and gets the job done, but don’t expect Ferrari performance or luxury features like native DSD. For 99% of listeners using Spotify, FLAC, or Netflix, it’s audibly transparent. Just ensure your board comes with a proper Windows driver.
Bottom line: If you see a $40 DAC board using an SA9123L and a decent DAC chip (ES9038Q2M, AK4493), buy it. It will sound as good as a $200 DAC from 5 years ago.
Alternatively, in some niche hardware contexts, it might refer to a specific LCD component, but the Energy Metering chip is the primary electronic component associated with this exact model sequence.
Here is a complete guide regarding the SA9123L Driver, including what it is, how it works, and how to implement it.
Apple frequently breaks unsigned kernel extensions. The SA9123L driver must be manually allowed.
Step 1: Download the Driver
Step 2: Install
Step 3: Allow the System Extension
Step 4: Verify/Assign the COM port
For engineers and hobbyists working with this chip, here are the key parameters:
| Parameter | Value | |-----------|-------| | Interface | USB 2.0 Full Speed (12 Mbps) | | Serial Protocols | RS232, TTL (3.3V / 5V tolerant) | | Supported Baud Rates | 300 bps – 921600 bps | | Data Bits | 5, 6, 7, 8 | | Stop Bits | 1, 2 | | Parity | None, Even, Odd, Mark, Space | | Flow Control | Hardware (RTS/CTS), Software (XON/XOFF) | | FIFO Buffer | 64 bytes RX, 64 bytes TX (typical) | | Operating Voltage | 3.3V – 5V (TTL side) | | Max Current | 15 mA (active) | | Temperature Range | -40°C to +85°C (industrial grade) | | Package | SOP-16, SSOP-20 |
The SA9123L is a serial/USB audio codec controller IC (assumed from the part name). This guide assumes you need a device driver or integration for embedded Linux and for Windows; if you need a different OS or board, say so.
A: Some older CH341 drivers were not digitally signed. The latest signed versions (3.8+) are safe. Download only from wch.cn.
If you are trying to get a driver working for this chip: