TAS5706 Power Amplifier Datasheet

TAS5706 Datasheet, PDF, Equivalent


Part Number

TAS5706

Description

20-W Stereo Digital Audio Power Amplifier

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download TAS5706 Datasheet


TAS5706
TAS5706
www.ti.com
SLOS550B – DECEMBER 2007 – REVISED DECEMBER 2010
20-W Stereo Digital Audio Power Amplifier with EQ and DRC
Check for Samples: TAS5706
FEATURES
1
23 Audio Input/Output
– 20-W into an 8-Load From an 18-V Supply
– Two Serial Audio Inputs (Four Audio
Channels)
– Supports Multiple Output Configurations:
– 2-Ch Bridged Outputs (20 W × 2)
– 4-Ch Single-Ended Outputs (10 W × 4)
– 2-Ch Single-Ended + 1-Ch Bridged (2.1)
(10 W × 2 + 20 W)
• Closed Loop Power Stage Architecture
– Improved PSRR Reduces Power Supply
Performance Requirements
– Higher Damping Factor Provides for
Tighter, More Accurate Sound With
Improved Bass Response
– Constant Output Power Over Variation in
Supply
• Wide PVCC Range From (10 V to 26 V)
– No Separate Supply Required for Gate
Drive
• Supports 32-kHz–192-kHz Sample Rates
(LJ/RJ/I2S)
• Headphone PWM Outputs
• Subwoofer PWM Outputs
• AM Interference Avoidance Support
• Audio/PWM Processing
– Independent Channel Volume Controls With
24-dB to –100-dB Range—Soft Mute (50%
Duty Cycle)
– Programmable Dynamic Range Control
– 16 Programmable Biquads for Speaker
Equalization
– Adaptive Biquad Coefficients for EQ and
DRC Filters
– Programmable Input and Output Mixers
– Loudness Compensation for Subwoofer
– Automatic Sample-Rate Detection and
Coefficient Banking
• General Features
– Serial Control Interface Operational Without
MCLK
– Factory-Trimmed Internal Oscillator Avoids
the Need for External Crystal
– Surface Mount, 64-Terminal, 10-mm ×
10-mm HTQFP Package
– Thermal and Short-Circuit Protection
DESCRIPTION
The TAS5706 is a 20-W, efficient, digital audio power
amplifier for driving stereo bridged-tied speakers. Two
serial data inputs allow processing of up to four
discrete audio channels and seamless integration to
most digital audio processors and MPEG decoders,
accepting a wide range of input data and clock rates.
A fully programmable data path allows these
channels to be routed to the internal speaker drivers
or output via the subwoofer or headphone PWM
outputs.
The TAS5706 is a slave-only device receiving all
clocks from external sources. The TAS5706 operates
at a 384-kHz switching rate for 32-, 48-, 96-, and
192-kHz data, and at a 352.8 kHz switching rate for
44.1-, 88.2-, and 176.4-kHz data. The 8×
oversampling combined with the fourth-order noise
shaper provides a flat noise floor and excellent
dynamic range from 20 Hz to 20 kHz.
1
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.
PurePath Digital is a trademark of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
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 © 2007–2010, Texas Instruments Incorporated

TAS5706
TAS5706
SLOS550B – DECEMBER 2007 – REVISED DECEMBER 2010
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
2 Submit Documentation Feedback
Product Folder Link(s): TAS5706
Copyright © 2007–2010, Texas Instruments Incorporated


Features TAS5706 www.ti.com SLOS550B – DECEMB ER 2007 – REVISED DECEMBER 2010 20-W Stereo Digital Audio Power Amplifier wi th EQ and DRC Check for Samples: TAS570 6 FEATURES 1 •23 Audio Input/Output – 20-W into an 8-Ω Load From an 18- V Supply – Two Serial Audio Inputs (F our Audio Channels) – Supports Multip le Output Configurations: – 2-Ch Brid ged Outputs (20 W × 2) – 4-Ch Single -Ended Outputs (10 W × 4) – 2-Ch Sin gle-Ended + 1-Ch Bridged (2.1) (10 W × 2 + 20 W) • Closed Loop Power Stage Architecture – Improved PSRR Reduces Power Supply Performance Requirements Higher Damping Factor Provides for T ighter, More Accurate Sound With Improv ed Bass Response – Constant Output Po wer Over Variation in Supply • Wide P VCC Range From (10 V to 26 V) – No Se parate Supply Required for Gate Drive Supports 32-kHz–192-kHz Sample Rat es (LJ/RJ/I2S) • Headphone PWM Output s • Subwoofer PWM Outputs • AM Inte rference Avoidance Support • Audio/PWM Processing – Independent Channel Volume Controls With 24-dB to –100-d.
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