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The RT9107B is a high efficiency, I2S-input, stereo or 2.1-channel audio power amplifier delivering 2x18W into 8Ω BTL speaker loads. It can deliver over 90% power efficiency and eliminate the need for heat sink.

The built-in anti-pop function can reduce the speaker's pop noise under all kind of scenarios. Built-in protections include over temperature, over current, over voltage, and under voltage protections and report error status.

The RT9107B is an I2S slave-only device receiving all clocks from external sources. It can support a wide input sampling rate from 8kHz to 96kHz, and operate with a PWM switching frequency of 352kHz or 384kHz, depending on the input sampling rate. A fully programmable data path routes these channels to the internal speaker drivers.

The RT9107B features dual-band DRC and flexible multi-band biquads for anti-clipping, power limiting, and speaker equalization. Programmable signal path routing enables Rich-surround effect and Rich-bass enhancement implementation.

Applications

  • LCD-TV
  • Monitors
  • Home Audio
  • Amusement Equipment
  • Electronic Music Equipment
Key Spec.
RT9107B
Status EOL
Recommended Alternative  RT9114B
Output Channels 2
Vin (min) (V) 8
Vin (max) (V) 26
Pout @THD+N=10% (W) 18
Pout @THD+N=1% (W) 15
SNR (dB) 105
Amplifier Type Class-D
Features OCP;OTP;OVP;UVLO
Package Type TQFP7x7-48(PP)
Features
  • Wide Supply Voltage Range : 8V to 26V
  • 2x18W at 10% THD+N into 8Ω BTL at 18V
  • 2x8W at 10% THD+N into 8Ω BTL at 12V
  • Support Stereo or 2.1-Channels
  • Sampling Frequency from 8kHz to 96kHz
  • Built-in anti-pop Function for BTL AD/BD Modulations, SE Output Configuration
  • >20 Programmable Biquads for Speaker Equalization
  • Programmable Coefficients for DRC Filters, Supporting Multi-compression Ratios
  • Built-in DC Blocking Filters
  • Protection Features : UVLO, OVP, OCP and OTP
  • TQFP-48L (Exposed Pad) Thermal-Enhanced Package
  • RoHS Compliant and Halogen Free
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