TAS5731M 30-W Stereo Digital Audio Power Amplifier with DSP and 2.1 Mode | TI.com

TAS5731M (ACTIVE) 30-W Stereo Digital Audio Power Amplifier with DSP and 2.1 Mode

 

Description

The TAS5731M is a 30-W, efficient, digital-audio stereo power amplifier for driving stereo bridge-tied speakers. One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital audio processors and MPEG decoders. The device accepts a wide range of input data and data rates. A fully programmable data path routes these channels to the internal speaker drivers.

The TAS5731M is a slave-only device receiving all clocks from external sources. The TAS5731M operates with a PWM carrier between a 384-kHz switching rate and a 352-kHz switching rate, depending on the input sample rate. Oversampling combined with a fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz.

Features

  • 2-Ch I2S Input; 8-kHz to 48-kHz fS
  • 30-W Stereo, 8 Ω/24 V (THD+N = 10%)
  • Up to 90% Efficient Operation
  • Wide 8-V to- 24-V Supply Range; 3.3-V Digital
    Supply
  • Single-Device 2.1 Support (2 × SE + 1 × BTL)
  • 80-mΩ RDS(on) Device That Can Support 2-Ω SE
    and 4-Ω BTL Modes
    • 12 V, 2 Ω, 8 W With SE mode
    • 12 V, 4 Ω, 15 W With BTL mode
  • Speaker EQ (8 BQ per Channel), 2× DRCs
  • Pin-to-Pin Compatible With the TAS5727 and
    TAS5731
  • Benefits:
    • Direct Connect to Digital Processor
    • High Output Power From a Standard Supply
    • Eliminates the Need for Heat Sink
    • Advanced Processing Improves Audio
      Experience

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) Power to parallel bridge tied load (Max) (W) Sampling rate (Max) (kHz) Operating temperature range (C) Rating
TAS5731M Order now Digital Input     Class-D     Stereo     8     26.4     30     2     104     0.03     27     Software     Open     3     3.6     70     48     -40 to 85     Catalog    
TAS5711 Order now Digital Input     Class-D     3     8     26     20     4     106     0.06     29     Software     Open     3     3.6     42.8     48     0 to 85     Catalog    
TAS5721 Order now Digital Input     Class-D     3     4.5     26.4     10     4     106     0.07     21     Software     Open     3     3.6     30     48     0 to 85     Catalog    
TAS5755M Order now Digital Input     Class-D     3     8     26.4     50     4     104     0.05     32     I2C
Software    
Open     3     3.6     70     48     0 to 125     Catalog