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Audio codec with Class-D amp extends battery life

Posted: 06 Jan 2009 ?? ?Print Version ?Bookmark and Share

Keywords:Class-D amp? audio codec? amplifier? portable application?

TLV320AIC3107

Texas Instruments Inc. has released a new low-power stereo audio codec that enables CD quality playback and extends battery life in portable products such as cellphones, portable navigation devices and portable media players.

The TLV320AIC3107 codec integrates a stereo headphone amplifier and mono Class-D speaker amplifier to substantially reduce board area and cost by 20 percent when compared to discrete solutions.

The codec features 8- to 96KSps stereo DAC with 97dB SNR and 8- to 96KSps ADC with 92dB SNR. The device also has a low power consumption of 15mW at 48kHz with a 3.3V analog supply. Its integrated mono Class-D speaker amplifier is capable of driving 1W into 8? load. In addition, the TLV320AIC3107 has a low impedance passive analog switch, an integrated PLL as well multiple inputs and outputs programmable in single-ended or fully differential configurations.

The TLV320AIC3107 is available in a space-saving 5mm x 5mm QFN-40 package for $3.85 in 1,000-piece quantities. A 3.5mm x 3mm WCSP package will be available in Q1 09.





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