Volver a Texas Instruments

Texas Instruments TAS2560 Class-D Mono Audio Amplifier

Texas Instruments TAS2560 Class-D Mono Audio Amplifier is a low-power, high-performance, digital input, boosted amplifier that can easily be implemented in mono and stereo (x2) applications. The device features an ultra-low-noise audio DAC and Class-D power amplifier. The Texas Instruments TAS2560 features incorporate speaker voltage and current sensing feedback with speaker protection algorithms. A Class-H boost converter generates the Class-D amplifier supply rail. When the audio signal requires only a lower Class-D output power, system efficiency is improved by deactivating the boost and connecting VBAT directly to the Class-D amplifier supply. When a higher audio output power is required, the multi-level boost re-activates, tracking the signal to provide the additional voltage to the load.

Features

  • Ultra-low-noise mono boosted Class-D amplifier
    • 5.6W at 1% THD+N and 6.9W at 10% THD+N into a 4Ω load from a 4.2V supply
    • 3.7W at 1% THD+N and 4.5W at 10% THD+N into an 8Ω load from a 4.2V supply
  • Output noise for DAC + Class-D (ICN) is 16.2µV
  • DAC + Class-D SNR 111dB at 1%THD+N / 8Ω
  • THD+N –89dB at 1W / 8Ω with a flat frequency response
  • Post-Filter Feedback (PFFB)
  • PSRR 110dB for 200mVpp ripple at 217Hz
  • Input sample rates from 8kHz to 96kHz
  • High-efficiency Class-H boost converter
    • Automatically adjusts Class-D supply
    • Multi-level tracking to improve efficiency
  • Built-in speaker sense
    • Measures speaker current and voltage
    • Measures VBAT voltage, chip temperature
  • Built-in Automatic Gain Control (AGC)
    • Limits battery current consumption
  • Adjustable Class-D switching edge-rate control
  • Power supplies
    • Boost input: 2.9V to 5.5V
    • Analog/digital: 1.65V to 1.95V
    • Digital I/O: 1.62V to 3.6V
  • Thermal, short-circuit, and under-voltage protection
  • I2S, left-justified, right-justified, DSP, TDM, and PDM
  • I2C interface for register control
  • Stereo configuration using two TAS2560 devices

Applications

  • Mobile phones
  • Tablets
  • Personal electronics
  • Building/home automation
  • BLUETOOTH® speakers and accessories

Functional Block Diagram

Block Diagram - Texas Instruments TAS2560 Class-D Mono Audio Amplifier

Related Development Tool

Texas Instruments TAS2560EVM Audio Amplifier Evaluation Module

Enables users to quickly and easily evaluate the TAS2560 audio amplifier.

Learn Moreacerca de Texas Instruments TAS2560EVM Audio Amplifier Evaluation Module View Productsrelacionado con Texas Instruments TAS2560EVM Audio Amplifier Evaluation Module
Publicado: 2017-02-28 | Actualizado: 2022-04-04