Datasheet

1
FEATURES
DESCRIPTION
TAS5716
www.ti.com ............................................................................................................................................................................................... SLOS569 – JANUARY 2009
20-W Stereo Digital-Audio Power Amplifier With EQ and DRC
– Loudness Compensation for Subwoofer
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• Audio Input/Output – Automatic Sample-Rate Detection and
Coefficient Banking
– 20 W Into an 8- Ω Load From an 18-V Supply
– 3D Support
– Two Serial Audio Inputs (Four Audio
Channels) – Pseudo-Bass Support
– Supports Multiple Output Configurations: • General Features
– 2-Ch Bridged Outputs (20 W × 2) – Serial Control Interface Operational Without
MCLK
– 4-Ch Single-Ended Outputs (10 W × 4)
– Factory-Trimmed Internal Oscillator Avoids
– 2-Ch Single-Ended + 1-Ch Bridged (2.1)
the Need for External Crystal
(10 W × 2 + 20 W)
– Surface Mount, 64-Terminal, 10-mm ×
• Closed-Loop Power-Stage Architecture
10-mm HTQFP Package
– Improved PSRR Reduces Power Supply
– Thermal and Short-Circuit Protection
Performance Requirements
– Higher Damping Factor Provides for
Tighter, More Accurate Sound With
Improved Bass Response
The TAS5716 is a 20-W, efficient, digital-audio power
amplifier for driving stereo bridged-tied speakers. Two
– Constant Output Power Over Variation in
serial data inputs allow processing of up to four
Supply
discrete audio channels and seamless integration to
• Wide PVCC Range From (10 V to 26 V)
most digital audio processors and MPEG decoders,
– No Separate Supply Required for Gate accepting a wide range of input data and clock rates.
A fully programmable data path allows these
Drive
channels to be routed to the internal speaker drivers
• Supports 32-kHz – 192-kHz Sample Rates
or output via the subwoofer or headphone PWM
(LJ/RJ/I
2
S)
outputs.
• Headphone PWM Outputs
The TAS5716 is a slave-only device receiving all
• Subwoofer PWM Outputs
clocks from external sources. The TAS5716 operates
• AM Interference Avoidance Support
at a 384-kHz switching rate for 32-, 48-, 96-, and
192-kHz data, and at a 352.8 kHz switching rate for
• Audio/PWM Processing
44.1-, 88.2-, and 176.4-kHz data. The 8 ×
– Independent Channel Volume Controls With
oversampling combined with the fourth-order noise
24-dB to – 100-dB Range — Soft Mute (50%
shaper provides a flat noise floor and excellent
Duty Cycle)
dynamic range from 20 Hz to 20 kHz.
– Programmable Dynamic Range Control
– 16 Programmable Biquads for Speaker
Equalization
– Adaptive Biquad Coefficients for EQ and
DRC Filters
– Programmable Input and Output Mixers
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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.
2 PurePath Digital is a trademark of Texas Instruments.
3 All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.