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TI Rolls Out New Class-D Amplifiers
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New Class-D amplifiers feature true filter-free operation and SpeakerGuard protection circuitry.
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Thursday, August 27, 2009:
Texas Instruments Incorporated (TI) today introduced a 15-W stereo, true filter-free, analog-input, Class-D audio amplifier. The device’s advanced electromagnetic interference (EMI) suppression technology eliminates the need for costly inductor-based output filters, reducing bill of materials (BOM) cost by as much as 50 percent.
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The TPA3110D2’s SpeakerGuard protection circuitry protects speakers from damage, helping to reduce end equipment customer returns and associated support costs. The device also features enhanced performance, making the TPA3110D2 an excellent choice for consumer audio applications, including HDTVs, media docking stations, digital radios and sound bars. For product details and to order evaluation modules and samples see: www.ti.com/tpa3110d2-pr
Key features and benefits of the TPA3110D2:
Filter-free advanced EMI suppression technology reduces bill of materials costs by as much as 50 percent, yet meets EMC performance specifications. Costly inductor-based output filters are replaced with low-cost ferrite bead filters, reducing board space
SpeakerGuard technology includes an adjustable power limiter and DC protection circuitry on the audio inputs, preventing speakers from being overdriven or damaged by DC currents due to board component failure or defects on the audio input circuitry
Ultra-low THD+N performance of < 0.1% THD+N over full power range at 1 kHz and advanced click-and-pop suppression circuitry enables outstanding audio performance and fidelity
Flow-through pin-out facilitates hassle-free layout and optimizes thermal performance with high-voltage pins on one side and input and control pins on the other
Differential inputs enables excellent common mode noise rejection and high-fidelity audio
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