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Send til en ven   Udskriv25/8 2009 kl. 10:45
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15 W klasse D forstærker sænker kostprisen markant

Texas Instruments lancerer 15W klasse D forstærker, der elimerer behovet for induktor-baserede outputfiltre (in english).

Texas Instruments (TI) has 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. 

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. 


Key features 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. 

The TPA3110D2 is available now in a 28-pin TSSOP package and is priced at $1.45 in quantities of 1,000.       For product details and to order evaluation modules and samples see: www.ti.com/tpa3110d2-preu.

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