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RT9120

Richiek

Class-D Digital Audio Amplifier

RT9120 20W, Stereo, Inductor-Less I2S-Input, Low Noise, HighEfficiency Closed-Loop General-Purpose Class-D Digital Audi...


Richiek

RT9120

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Description
RT9120 20W, Stereo, Inductor-Less I2S-Input, Low Noise, HighEfficiency Closed-Loop General-Purpose Class-D Digital Audio Amplifier with DRC Control General Description The RT9120 is a high efficiency, I2S-input, stereo channel audio power amplifier delivering 2x20W into 8 BTL speaker loads. It can deliver over 92% power efficiency and eliminate the need for heat-sink. 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, and undervoltage protections and report error status. The RT9120 is a 3-wired device receiving all clocks from external sources with standard I2S, Left-justified, and Right-justified. It can support both master and slave mode with wide input sampling rate from 8kHz to 192kHz. A fully programmable data path routes these channels to the internal speaker drivers. The RT9120 features one band DRC and flexible input mixer, and power limiting. Ordering Information RT9120 Package Type QV: VQFN-32L 5x5 (V-Type) Lead Plating System G: Green (Halogen Free and Pb Free) Note: Richtek products are:  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes. Features ⚫ Wide Input Supply Range: 4.5V to 26.4V ⚫ Support 1.8V, 3.3V I/O ⚫ I2S, LJ, RJ, Digital Audio Interface ⚫ 2x20W at into 8 BTL at 20V ⚫ 2x9W at into 8 BTL at 12V ⚫ SNR Up to 106dB ⚫ THD + N i...




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