The KT0210 is a highly versatile USB audio codec single-chip that enables processing of USB audio signals. It combines a wide range of interfaces, including stereo analog output, mono analog microphone input, low-noise microphone amplifier, microphone bias circuit, Class-G audio power amplifier, audio digital signal processor, clock oscillator, DC/DC, LDO, USB interface, and 2-wire interface. The KT0210 incorporates a USB 2.0 function controller and transceiver, ensuring compatibility with full-speed mode, USB HID device class 1.11, and Audio device class 1.0. It supports major operating systems without requiring additional drivers, including Windows, Linux, and Android. With its integrated audio digital signal processor (DSP), it offers various audio processing functions like EQ, WF, NG, and DRC. The chip includes microphone pre-amplifier, headset plug/unplug detection, and microphone detection capabilities. It seamlessly identifies and configures OMTP and CTIA headset types. The Class-G audio power amplifier delivers high-performance audio output without AC coupling capacitors, minimizing POP noise during power on or off. It supports up to four configurable key inputs and includes an internal oscillator, eliminating the need for an external crystal. With available GPIOs, PWM output, auxiliary ADC input, and external interrupt, it offers extensive customization options. The KT0210 meets the requirements of various USB headset and headphone products, providing exceptional performance, feature richness, and a complete solution that reduces development complexity and costs. It enhances product reliability and consistency, simplifying production processes.