Siddi Micro Introduces USB Type-C Analog Audio Switch
With the arrival of 2024, USB Type-C has become a must-have interface for electronic devices as it accelerates to become the common interface standard for electronic devices in the European Union. With the rapid development of technology, users are no longer satisfied with USB Type-C interface for simple charging and data transmission, but are pursuing a more efficient and safer experience. To meet this demand, Hiddy Micro announces the HL5281, a USB Type-C analog audio switch with integrated over-voltage protection (OVP) and watchdog timer protection, which not only provides efficient data transfer, but also incorporates over-voltage protection to ensure a safe connection every time.
- Product Features
HL5281 is a high-performance USB Type-C port multimedia switch that supports analog audio headset and allows sharing a common USB Type-C port to transmit USB 2.0 signals, analog audio, sideband usage signals, and analog microphone signals.The HL5281 also supports high voltage on both the SBU side port and the USB Type-C adapter side port. In addition, the HL5281 can be used as a slave device to support the data transfer modes specified in the I2C bus specification, including standard mode at 100kbps and fast mode at 400kbps.
The HL5281 has an overvoltage protection (OVP) feature on the adapter-side pins that shuts down the internal initial signal routing path if the input voltage (Vin) exceeds the OVP threshold. Whenever a pin triggers an overvoltage protection (OVP) event, the Flag register will provide the corresponding pin information.The HL5281 is also equipped with a watchdog timer. The HL5281 is also equipped with a watchdog timer that continuously monitors the I2C communication, and once enabled, the timer will start and can be successfully reset via the I2C communication (read or write from the host device). If I2C communication is not detected after the timer count is cleared, the HL5281 will trigger an interrupt event to reset the switches to reset the registers (restoring REG04 and REG05 to their default values). If the watchdog timer needs to be configured, the user can program it through the REG20 register.
Available in a WLCSP package, the HL5281 is ideal for USB interface switching and protection of devices such as smartphones, tablets, laptops and media players.
- Product Advantages
I.Highly Integrated 3-in-1 Switching Transmission Function, Empowering Higher Flexibility in System-Level Design The HL5281 integrates a 3-in-1 switching transmission function, allowing for greater flexibility in system-level design. Through a single USB Type-C port, it quickly transfers USB2.0, analog audio, sideband usage signals and analog microphone signals, removing the 3.5mm headphone jack. This design not only improves data transfer efficiency and flexibility, but also incorporates over-voltage protection technology to ensure a safe and stable connection. The cell phone interface is simpler and has excellent waterproof and dustproof performance. The overall solution is more compact, simplifying design introduction and reducing system area.
II.Superior anti-crosstalk performance improves communication quality and user experience The HL5281 integrates an I2C interface, which can be easily controlled by the host processor, thus significantly reducing audio pops and beeps caused by changing settings. At the same time, its built-in OMTP/CTIA detection function and special ground detection switch further enhance the anti-crosstalk performance of the terminal system, bringing users a purer and more stable audio experience.