EINDHOVEN, THE NETHERLANDS and BARCELONA, SPAIN -- (Marketwire) -- 02/27/13 -- In a push for better sound quality and more output volume, leading mobile phone makers have been raising the internal voltage used to drive micro speakers -- from 3.3V through to 5V, and recently as high as 8V. This week at Mobile World Congress 2013, NXP Semiconductors (NASDAQ: NXPI) is launching its new TFA9890 speaker driver IC, which enables an unprecedented 9.5V boost voltage from an integrated DC/DC converter. Increasing the voltage headroom in the audio driver IC prevents amplifier clipping and keeps sound quality high at maximum volume. The most powerful driver yet for micro speakers, the TFA9890 safely drives a record 4 W of peak power into a standard 8-ohm speaker that is typically rated at 0.5 W, making a clear improvement to the sound output and quality of mobiles, tablets, TVs and portable speakers.
"As handsets increasingly become multimedia devices, the message from consumers is loud and clear: Better sound quality can be the difference between a phone you tolerate and a phone you love," said Shawn Scarlett, director of marketing, mobile audio solutions, NXP Semiconductors. "The commercial success of the TFA9887 audio IC we introduced last year has been game-changing -- and with the TFA9890, we're raising the bar for sound quality from mobile devices."
Advanced speaker protection for outstanding sound quality
Whereas traditional approaches have required cutting bass frequencies to avoid damaging the speaker, the TFA9890 builds on the advanced speaker protection introduced in the award-winning TFA9887 to enable safe operation while working at near-peak output at all times. The fully integrated protection includes adaptive excursion control, a unique approach that compensates for real-world changes in the acoustic environment. The IC measures current and voltage to the speaker, and uses the information to adapt the protection algorithm to account for changes like ageing, damage to the enclosure, and blocked speaker ports.
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