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Audio, háptica y piezoeléctrica
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Amplificadores de audio de uso general

TAS2553

ACTIVO

Amplificador inteligente de entrada digital/analógica de 2.8 W con detección de I/V para protección

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TAS2553

ACTIVO
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Detalles del producto

Audio input type Analog Input, Digital Input Architecture Class-D Boosted Speaker channels (max) Mono Control interface I2C Output power (W) 2.8 Power stage supply (max) (V) 7.5 Power stage supply (min) (V) 2.7 THD + N at 1 kHz (%) 0.9 Load (min) (Ω) 6 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Analog Input, Digital Input Architecture Class-D Boosted Speaker channels (max) Mono Control interface I2C Output power (W) 2.8 Power stage supply (max) (V) 7.5 Power stage supply (min) (V) 2.7 THD + N at 1 kHz (%) 0.9 Load (min) (Ω) 6 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFF) 30 5.71999999999999912 mm² (— mm × — mm)
  • Analog or Digital Input Mono Boosted Class-D Amplifier
  • 2.8 W into 8 Ω Load from 3.6 V Supply (1% THD+N)
  • Efficiency of 86% at Rated Power
  • I2S, Left-Justified, Right-Justified, DSP, PDM, and TDM
    Input and Output Interface
  • Input Sample Rates from 8 kHz to 192 kHz
  • High Efficiency Class-G Boost Converter
    • Automatically Adjusts Class-D Supply
  • Built-In Speaker Sense
    • Measures Speaker Current and Voltage
    • Measures VBAT and VBOOST Voltages
  • Built-In Automatic Gain Control (AGC)
    • Limits Battery Current Consumption
  • Adjustable Class-D Switching Edge-Rate Control
  • Power Supplies
    • Boost Input: 3.0 V to 5.5 V
    • Analog: 1.65 V to 1.95 V
    • Digital I/O: 1.5 V to 3.6 V
  • Thermal and Short-Circuit Protection
  • I2C Interface for Register Control
  • Stereo Configuration Using Two TAS2553s
    • I2C Address Select Terminal (ADDR)
  • 2.855 mm × 2.575 mm, 0.4 mm Pitch 30-Ball WCSP
  • Analog or Digital Input Mono Boosted Class-D Amplifier
  • 2.8 W into 8 Ω Load from 3.6 V Supply (1% THD+N)
  • Efficiency of 86% at Rated Power
  • I2S, Left-Justified, Right-Justified, DSP, PDM, and TDM
    Input and Output Interface
  • Input Sample Rates from 8 kHz to 192 kHz
  • High Efficiency Class-G Boost Converter
    • Automatically Adjusts Class-D Supply
  • Built-In Speaker Sense
    • Measures Speaker Current and Voltage
    • Measures VBAT and VBOOST Voltages
  • Built-In Automatic Gain Control (AGC)
    • Limits Battery Current Consumption
  • Adjustable Class-D Switching Edge-Rate Control
  • Power Supplies
    • Boost Input: 3.0 V to 5.5 V
    • Analog: 1.65 V to 1.95 V
    • Digital I/O: 1.5 V to 3.6 V
  • Thermal and Short-Circuit Protection
  • I2C Interface for Register Control
  • Stereo Configuration Using Two TAS2553s
    • I2C Address Select Terminal (ADDR)
  • 2.855 mm × 2.575 mm, 0.4 mm Pitch 30-Ball WCSP

The TAS2553 is a high efficiency Class-D audio power amplifier with advanced battery current management and an integrated Class-G boost converter. The device constantly measures the current and voltage across the load and provides a digital stream of this information.

The Class-G boost converter generates the Class-D amplifier supply rail. During low Class-D output power, the boost improves efficiency by deactivating and connecting VBAT directly to the Class-D amplifier supply. When high power audio is required, the boost quickly activates to provide significantly louder audio than a stand-alone amplifier connected directly to the battery.

The AGC automatically adjusts Class-D gain to reduce battery current at end-of-charge voltages, preventing output clipping, distortion and early system shutdown. The fixed gain is adjustable via I2C. The gain range is –7 dB to +24 dB in 1 dB steps.

In addition to a differential mono analog input, the TAS2553 has built-in a 16-bit D/A converter used with a digital input. Moving the D/A converter from the digital host processor into the integrated amplifier process provides better dynamic performance at lower system cost. Additionally, since the PCB routing is digital rather than analog, sensitivity to external perturbations such as GSM frame-rate noise is decreased at the system level.

The TAS2553 is a high efficiency Class-D audio power amplifier with advanced battery current management and an integrated Class-G boost converter. The device constantly measures the current and voltage across the load and provides a digital stream of this information.

The Class-G boost converter generates the Class-D amplifier supply rail. During low Class-D output power, the boost improves efficiency by deactivating and connecting VBAT directly to the Class-D amplifier supply. When high power audio is required, the boost quickly activates to provide significantly louder audio than a stand-alone amplifier connected directly to the battery.

The AGC automatically adjusts Class-D gain to reduce battery current at end-of-charge voltages, preventing output clipping, distortion and early system shutdown. The fixed gain is adjustable via I2C. The gain range is –7 dB to +24 dB in 1 dB steps.

In addition to a differential mono analog input, the TAS2553 has built-in a 16-bit D/A converter used with a digital input. Moving the D/A converter from the digital host processor into the integrated amplifier process provides better dynamic performance at lower system cost. Additionally, since the PCB routing is digital rather than analog, sensitivity to external perturbations such as GSM frame-rate noise is decreased at the system level.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TAS2553 2.8-W Class-D Mono Audio Amplifier with Class-G Boost and Speaker Sense datasheet (Rev. B) PDF | HTML 26/02/2014
Nota sobre la aplicación Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26/08/2019
Nota sobre la aplicación AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27/06/2019
Nota sobre la aplicación PLL and Clocking Configuration for Audio Devices 26/03/2019
Nota sobre la aplicación AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 1/05/2013

Diseño y desarrollo

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Placa de evaluación

TAS2552EVM — TAS2552 Módulo de evaluación del amplificador de potencia de audio de 4 W de clase D

The TAS2552EVM is a USB audio amplifier with an IV feedback, Boosted Class-D mono amplifier. Together with the TAS2552 control software and a customer supplied speaker and power supply, it allows easy evaluation of the TAS2552 audio amplifier. The TAS2552 control software is compatible with Windows (...)

Guía del usuario: PDF
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Modelo de simulación

TAS2553 IBIS Model

SLAM200.ZIP (69 KB) - Modelo IBIS
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