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RT9125H

50W Stereo, Inductor-Less Digital Audio, Closed-Loop System with 96kHz Extended Audio Processing

RT9125H
New

The RT9125H is a high-efficiency, I2S-input, stereo channel audio power amplifier delivering 2x50W into 4Ω BTL (Bridge Tied Load) speaker loads. It can deliver over 94% power efficiency and eliminate the need for heat-sink.Built-in protection circuits provide over-temperature, overcurrent, overvoltage, DC, and undervoltage protections and report error status.The RT9125H is an I2S device receiving all clocks from external sources. A fully programmable data path routes these channels to the internal speaker drivers.The RT9125H features three band DRC (Dynamic Range Compression) 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

  • Bluetooth and WiFi Speakers
  • Subwoofers
  • Bookshelf Stereo Systems
  • Professional And Public Address (PA) Speakers
  • Active Crossover and Two-Way Speakers

主要規格

RT9125H
Status Active
Output Channels 2
Vin (min) (V) 4.5
Vin (max) (V) 26.4
Pout @THD+N=10% (W) 100
Pout @THD+N=1% (W) 50
SNR (dB) 113
Amplifier Type Class-D
Features I2C;OCP;OTP;OVP;UVLO;UVP
Package Type RLQFP10x10-64(PP)

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 (Time-Division Multiplexing) up to 32 Bits
    ► Sampling Frequency from 8kHz to 96kHz

  • Excellent Audio Performance
    ► 1x100W PBTL Mode at 2Ω at 23V, THD+N = 1%
    ► 2x50W BTL Mode at 4Ω at 23V, THD+N = 1%
    ► SNR ≥ 110dB
    ► Efficiency ≥ 94%

  • Built-In Programmable DSP (Digital Signal Processor) Function
    ► 36 Programmable Biquads for Speaker Equalization
    ► Programmable Coefficients for DRC Filters and Supporting Multi-Compression Ratios
    ► Programmable 128-Tap FIR

  • Excellent Self-Protection
    ► UVLO, OVP, OCP, Thermal Foldback, OTP and DCP
    ► Built-In DC Blocking Filters

  • Filter-Less Application

  • 64 Pin LQFP Package with the Exposed Thermal Pad

Datasheet

RT9125H_DS-00.pdf

Datasheet

RT9125H_DS-00.pdf

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