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TAS5612LADDVR
125 W Stereo/250W Mono PurePath HD Digital-Input Power Stage
TMClass G Power Supply
TAS5630
PurePath HDTM
TAS5612LA
TASxxxx
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AUDIO+3.3V
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TAS5612LASLAS847A –MAY 2012–REVISED MARCH 2015
TAS5612LA 125-W Stereo and 250-W Mono PurePath™ HD Digital-Input Class-D Power
Stage Features 3 DescriptionThe TAS5612LAisa feature optimized class-D power PurePath™ HD Integrated Feedback Provides: amplifier basedon the TAS5612A.– 0.05% THDat1W Into4Ω
The TAS5612LA uses large MOSFETs for improved– > 65-dB PSRR (No Input Signal) power efficiency anda novel gate drive scheme for– > 105-dB(A Weighted) SNR reduced lossesin idle and at low output signals Preclipping Output for Controlofa Class-G Power leadingto reduced heat sink size.
Supply The unique preclipping output signal can be usedto• Reduced Heat Sink Size Dueto Useof 60-mΩ controla class-G power supply. This combined with
Output MOSFET With> 90% Efficiencyat Full the low idle loss and high power efficiencyof the
Output Power TAS5612LA leads to industry-leading levels of
efficiency ensuringa super “green” system.• Output Powerat 10% THD+N
The TAS5612LA uses constant voltage gain. The– 125-W and 4-Ω BTL Stereo Configuration
internally matched gain resistors ensurea high Power– 250-W and 2-Ωin PBTL Mono Configuration Supply Rejection Ratio giving an output voltage only• Output Powerat 1% THD+N dependent on the audio input voltage and free from 105-W and 4-Ω BTL Stereo Configuration any power supply artifacts. 55-W and 8-Ω BTL Stereo Configuration The high integrationof the TAS5612LA makes the
amplifier easy to use; and, using TI’s reference• Click- and Pop-Free Start-up
schematics and PCB layouts leadsto fast designin• Error Reporting Self-Protected Design With UVP, time. The TAS5612LAis availablein the space-Overtemperature, and Short-Circuit Protection saving, surface-mount, 44-pin HTSSOP package.• EMI Compliant When Used With Recommended
System Design
Device Information(1) 44-Pin HTSSOP (DDV) Package for Reduced
Board Size
(1) Forall available packages, see the orderable addendumat
2 Applications the endofthe data sheet. Blu-ray™ and DVD Receivers High-Power Sound Bars Powered Subwoofer and Active Speakers Mini Combo Systems
Typical TAS5612LA Application Block Diagram
