50W, Stereo, High-Efficiency, Inductor-Less, I²S General-Purpose Class-D Audio Amplifier with DRC Control

The RT9120H is a high efficiency, I²S-input, stereo channel audio power amplifier delivering maximum 2x50W into 8Ω BTL (Bridge Tied Load) speaker loads. It can deliver over 94% power efficiency at 2x10W and eliminate the need for heatsink and implement CMH mode to reduce pulse width at small signal, inductor current ripple is reduced and hence light load efficiency is improved.The built-in anti-pop functions can reduce the speaker’s pop noise under all kind of scenarios. Built-in protection circuits provide over-temperature, overcurrent, overvoltage, undervoltage protections, and report error status.The RT9120H is a 3-wired device receiving all clocks from external sources with standard I²S, Left-justified, Right-justified or TDM (Time-Division Multiplexing) formats. It can support wide input sampling rate from 8kHz to 192kHz.The RT9120H features one band DRC (Dynamic Range Compression) and flexible input mixer, and power clipping.The recommended junction temperature range is -40°C to 150°C, and the ambient temperature range is -40°C to 85°C.