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Texas Instruments introduces an audio amplifier for flat panel displays

Villeneuve-Loubet, France — Texas Instruments has introduced a complete digital-input Class-D audio power amplifier for flat panel displays, which enables designers to develop products with sound quality that matches the display's high-quality image, while minimizing cost and component count. Ideal for 27 inch and larger flat panel displays, the digital amplifier operates more efficiently than traditional linear amplifiers, minimizing heat and eliminating the space required for an external heat sink. It also minimizes overall power consumption, which helps reduce the transformer and regulator size and cost. The TPA3200D1 provides the key functions required by flat panel manufacturers, including both a digital interface and power amplifier. The device's 250-kHz switching frequency oversamples the audio signal a minimum of 10 times to ensure high quality audio that is equal to or better than the linear amplifiers used in flat panels today. The TPA3200D1's digital 24-bit I2S or 16-bit right-justified input connects directly to most audio processors and reduces layout concerns that can cause noise and affect signal integrity. The TPA3200D1 is available in a 44-pin thin shrink small outline package (TSSOP). Suggested resale pricing in quantities of 1,000 is $2.95. An evaluation module is also available. Texas Instruments Europe , Villeneuve-Loubet, France. www.ti.com.

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