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RT9120 - Class-D Digital Audio Amplifier

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.

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.

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Datasheet Details

Part number RT9120
Manufacturer Richiek
File Size 1.67 MB
Description Class-D Digital Audio Amplifier
Datasheet download datasheet RT9120 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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.
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