TAS5731 Datasheet, PDF (1/58 Pages) Texas Instruments – 2 × 20-W DIGITAL AUDIO POWER AMPLIFIER WITH DSP AND 2.1 MODE

TAS5731
www.ti.com
SLOS726 – DECEMBER 2011
2 × 20-W DIGITAL AUDIO POWER AMPLIFIER WITH DSP AND 2.1 MODE
Check for Samples: TAS5731
FEATURES
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• 2-Ch I²S Input; 8-kHz to 48-kHz f_S
• 20-W Stereo, 8 Ω/18 V (THD+N = 10%)
• Up to 90% Efficient Operation
• Wide 8-V to- 21-V Supply Range; 3.3-V Digital
Supply
• Single-Device 2.1 Support (2 × SE + 1 × BTL)
• 70-mΩ R_DS(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
• P2P Compatible With the TAS5727
• Benefits
– Direct Connect to Digital Processor
– High Output Power From a Standard
Supply
– Eliminates Need for Heat Sink
– Advanced Processing Improves Audio
Experience
APPLICATIONS
• LCD TV
• LED TV
• Sound Bar
DESCRIPTION
The TAS5731 is a 20-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 TAS5731 is a slave-only device receiving all
clocks from external sources. The TAS5731 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.
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated