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The RT9114C is a high efficiency, I2S-input, stereo channel audio power amplifier delivering 2x20W into 8Ω BTL speaker loads. It can deliver over 90% 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, over-current, over-voltage, and under-voltage protections and report error status.

The RT9114C is an I2S device receiving all clocks from external sources with wide input sampling rate from 8kHz to 96kHz. A fully programmable data path routes these channels to the internal speaker drivers. Besides, the RT9114C also supports the master mode if an external MCLK is ready.

The RT9114C features three band DRC and flexible multi-band biquads for anti-clipping, power limiting, and speaker equalization.

Applications

  • LCD-TV
  • Monitors
  • Home Audio
  • Amusement Equipment
Key Spec.
RT9114C
Status Active
Output Channels 2
Vin (min) (V) 8
Vin (max) (V) 26.4
Pout @THD+N=10% (W) 9
Pout @THD+N=1% (W) 6.5
SNR (dB) 100
Amplifier Type Class-D
Features High PSRR;OCP;OTP;OVP;UVP
Package Type VQFN4x5-28
Features
  • Wide Input Supply Range : 8V to 26.4V
  • 2x20W at into 8Ω BTL at 20V
  • 2x9W at into 8Ω BTL at 12V
  • Support Stereo/PBTL/Mono Output
  • Sampling Frequency from 8kHz to 96kHz with Auto Detection
  • Support Master and Slave I2S Interface
  • MCLK-Less with Clock Auto Detection
  • Built-In Anti-Pop Function
  • Support SDO for Acoustic Echo Cancellation
  • > 24 Programmable Biquads
  • Programmable Coefficients for DRC Filters and Supporting Multi-Compression Ratios with post DRC
  • Built-In DC Blocking Filters
  • Protection Features : UVLO, OVP, OCP, OTP and DCP
  • Filter-Less Application
  • VQFN-28L Thermally-Enhanced Package
  • RoHS Compliant and Halogen Free
Datasheet
TitleLast UpdateDownload
Dual Channel Digital Audio System with EQ and Frequency DRC Control2019/11/12
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2024] Selection Guide2024/01/18
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