Date: 25/04/2011

25-W digital audio power amp for driving stereo bridge-tied speakers

Texas Instruments Incorporated has introduced a 25-W digital audio power amplifier for driving stereo bridge-tied speakers in thin flat panel devices.

Key features and benefits:
Features low 75-milliohm RDS(ON) to support less heat generation and consume less power.
Two-band dynamic range compression (DRC) allows for the processing of audio in two different frequency bands, with seamless integration to most digital audio processors, such as the TMS320DA708. DRC can be used as a power limiter to enable speaker protection and night-mode listening.
18 programmable biquad filters enable speaker EQ and other audio processing features.
Efficient class-D operation eliminates the need for heatsinks.

Availability and pricing: The TAS5727 is available now in a surface mount 48-pin HTQFP package, priced at $2.50 each in quantities of 1,000.