Klasse D forstærker til bærbart udstyr

Texas Instruments  er klar med højt integreret, men ultrakompakt klasse D forstærkerchip til bærbart udstyr (in english).

Texas Instruments (TI) introduces a 3.2-W, mono Class-D audio amp with an integrated digital-to-analog converter (DAC) noise filter that reduces codec noise by as much as 82 percent, compared to devices without this feature.

The TPA2011D1’s integrated noise filter could eliminate the need for an external filter on the inputs, reducing component count and cost. The Class-D amplifier’s 1.2-mm x 1.2-mm package size makes it 25 percent smaller than competing devices, further saving space for designers who are looking for 0.4-mm pitch for next-generation mobile phones and portable media players.

The TPA2011D1 is available now in a 1.2-mm x 1.2-mm, 0.4-mm pitch, 9-ball WCSP and
is priced at $0.85 in 1,000-unit quantities. Additional members of the TPA2011D1 family, the TPA2037D1 and the TPA2039D1, are also available for sampling and production now.

For product details and to order evaluation modules and samples see: www.ti.com/tpa2011d1-preu