TAS2563 6.1W Boosted class-D audio amplifier with integrated DSP and IV-Sense | TI.com

TAS2563
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6.1W Boosted class-D audio amplifier with integrated DSP and IV-Sense

 

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Description

The TAS2563 is a digital input Class-D audio amplifier optimized for efficiently driving high peak power into small loudspeaker applications. The Class-D amplifier is capable of delivering 6.1 W of peak power into a 4 Ω load at a battery voltage of 3.6 V. TAS2563 supports boost bypass mode (External PVDD mode) where it can achieve 12W at 10% THD+N (4 Ω at 12 V).

An on-chip, low-latency DSP supports Texas Instruments SmartAmp speaker protection algorithms to maximizes loudness while maintaining safe speaker conditions.

Integrated speaker voltage and current sense with internal protection algorithms provides for real time monitoring of the loudspeakers. This permits pushing peak SPL while keeping speakers in the safe operation area. A battery tracking peak voltage limiter with brown-out prevention optimizes amplifier headroom over the entire charge cycle preventing system shutdowns.

Up to eight devices can share a common bus via I2S/TDM + I2C interfaces.

The TAS2563 device is available in a 42-ball, 0.4 mm pitch DSBGA (YBG) for a compact PCB footprint.

Features

  • High performance Class-D amplifier
    • 6.1-W 1% THD+N (4 Ω at 3.6 V)
    • 5-W 1% THD+N (8 Ω at 3.6 V)
    • Boost bypass mode: 10 W(12 W) at 1% (10%) THD+ N (4 Ω,12 V)
  • 15-µVrms A-weighted idle channel noise
  • 112.5dB SNR at 1% THD+N (8 Ω)
  • 100dB PSRR with 200-mVPP ripple at 20Hz to 20 kHz
  • 83.5% Efficiency at 1 W (8 Ω, VBAT = 4.2 V)
  • < 1-µA HW Shutdown VBAT current
  • Speaker voltage and current sense
  • VBAT Tracking peak voltage limiter with brown-out prevention
  • Dedicated real-time DSP for speaker protection
    • Thermal and excursion protection
    • Detects leak and damaged speaker
  • 14.47-kHz to 96-kHz Sample rates
  • 2 PDM MIC Inputs
  • Flexible user interfaces
    • I2S/TDM: 8 Channels (32 bit / 96 kHz)
    • I2C: Selectable addresses
  • MCLK Free operation
  • Two 2.54 to 6.76 MHz PDM inputs
  • Advanced brown-out prevention
  • Power supplies
    • VBAT: 2.7 V to 5.5 V
    • VDD: 1.65 V to 1.95 V
    • IOVDD: 1.65 V to 3.6 V
  • Spread-spectrum low EMI mode
  • Thermal and overcurrent protection
  • 42-Ball, 0.4 mm pitch, DSBGA package

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Parametrics

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Part number Order Audio input type Architecture Speaker channels (Max) Power stage supply (Min) (V) Power stage supply (Max) (V) Output power (W) Load (Min) (ohms) SNR (dB) THD + N @ 1 kHz (%) Iq (Typ) (mA) Control interface Closed/open loop Analog supply (Min) (V) Analog supply (Max) (V) Sampling rate (Max) (kHz) PSRR (dB) Operating temperature range (C) Rating
TAS2563 Order now Digital Input     Class-D Boosted
Smart Amp    
Mono     2.7     5.5     6.1     3.2     112.5     0.01     2.7     I2C     Closed     2.7     5.5     96     100     -40 to 85     Catalog    
TAS2555 Samples not available Digital Input     Class-D Boosted
Smart Amp    
Mono     2.7     5.5     5.7     4     111     0.02     3     I2C
SPI    
Closed     2.95     5.5     96     110     -40 to 85     Catalog    
TAS2557 Order now Digital Input     Class-D Boosted
Smart Amp    
Mono     2.7     5.5     5.7     4     111     0.0035     3.9     I2C
SPI    
Closed     2.9     5.5     96     110     -40 to 85     Catalog