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Richtek
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The RT9125 is a high efficiency, I2S-input, stereo channel audio power amplifier delivering 2x30W into 8Ω BTL speaker loads. It can deliver over 94% power efficiency and eliminate the need for heat-sink.Built-in protection circuits can provide over-temperature, overcurrent, overvoltage, DC and undervoltage protections and report error status.The RT9125 is an I2S device receiving all clocks from external sources. A fully programmable data path routes these channels to the internal speaker drivers.The RT9125 features three band DRC and flexible multi-band biquads for anti-clipping, power limiting, and speaker equalization.The recommended junction temperature range is -40°C to 150°C, and the ambient temperature range is -40°C to 85°C.

應用

  • LCD-TV
  • Monitors
  • Home Audio
  • Amusement Equipment
  • Electronic Music Equipment
主要規格
RT9125
Status Active
Output Channels 1;1
Vin (min) (V) 4.5
Vin (max) (V) 26.4
Pout @THD+N=10% (W) 27
Pout @THD+N=1% (W) 23
SNR (dB) 113
Amplifier Type Class-D
Features High PSRR;I2C;OCP;OTP;OVP;UVP
Package Type VQFN6x6-48
關鍵特性
  • Flexible Power Supply Range
    - PVDD from 4.5V to 26.4V
    - DVDD and I/O, 1.8V or 3.3V
  • Support Wide Range Audio Format
    - Bit Resolution Up to 32 Bits
    - Support TDM Up to 32 Bit
    - Sampling Frequency from 8kHz to 96kHz
  • Excellent Audio Performance
    - 2x30W at into 8Ω BTL at 24V
    - SNR ≥ 110dB
    - Efficiency ≥ 94%
  • Built-In Programmable DSP Function
    - 36 Programmable Biquads for Speaker Equalization
    - Programmable Coefficients for DRC Filters and Supporting Multi-Compression Ratios
    - Programmable 256-taps FIR
  • Excellent Self-Protection
    - UVLO, OVP, OCP, Thermal Foldback, OTP, and DCP
    - Built-In DC Blocking Filters
  • Filter-Less Application
  • VQFN-48L Thermally-Enhanced Package
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