RT9120E
RT9120E is I2S General Purpose Class-D Audio Amplifier manufactured by Richiek.
30W, Stereo, High-Efficiency, Inductor-Less, I2S GeneralPurpose Class-D Audio Amplifier with DRC Control
1 General Description
The RT9120E is a high efficiency, I2S-input, stereo channel audio power amplifier delivering maximum 2x30W into 8 BTL speaker loads. It can deliver over 94% power efficiency at 2x20W 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 can provide over-temperature, overcurrent, overvoltage, undervoltage...
