Part # MAX9729 datasheet

Part Manufacturer: Maxim


Part Description: MAX9729 DS

Part Details:

19-0857; Rev 0; 7/07 EVALUATION KIT AVAILABLE Stereo Headphone Amplifier with BassMax, Volume Control, and Input Mux MAX9729 General Description Features The MAX9729 stereo DirectDriveTM headphone amplifi- DirectDrive Headphone Amplifier Eliminates er features bass boost, volume control, an input mux, Bulky DC-Blocking Capacitors and an I2C/SMBusTM-compatible serial interface. This 3:1 Input Multiplexer with Digital-Fade Circuitry makes the MAX9729 ideal for portable audio applica- Software-Enabled Bass Boost tions where space is at a premium and performance is 32-Step Integrated Volume Control essential. The MAX9729 operates from a single 1.8V to3.6V, and uses Maxim s patented DirectDrive architec- Beep Input with Programmable Output Level ture, eliminating the need for large DC-blocking capaci- Low Quiescent Current tors. The headphone amplifiers deliver 52mW into a Industry-Leading Click-and-Pop Suppression 32 load, feature low 0.03% THD+N, and high 90dB I2C-Compatible 2-Wire Interface PSRR. Maxim s industry-leading click-and-pop sup- Short-Circuit Protection pression circuitry reduces audible transients duringpower and shutdown cycles. 1.8V to 3.6V Single-Supply Operation The BassMax feature boosts the bass response of the Available in Space-Saving, Thermally Efficient 28-Pin TQFN-EP (5mm x 5mm x 0.8mm) amplifier, improving audio reproduction for low-endheadphones. The integrated volume control features 32 Applications discrete volume levels along with a ramping function toensure smooth transitions during shutdown cycles and Portable CD/DVD/MD Automotive Rear Seat input selection. The MAX9729 s eight programmable Players Entertainment (RSE) maximum gain settings allow for a wide range of input Cell Phones Flat-Panel TVs signal levels. A 3:1 multiplexer/mixer allows the selectionand summation of multiple stereo input signal sources. MP3/PMP Players The MAX9729 also includes a dedicated BEEP input Ordering Information with independent attenuation control. BassMax, volumecontrol, gain settings, and input selection are controlled PIN- SLAVE PKG PART using the I2C/SMBus-compatible serial interface. A low- PACKAGE

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MAX9729.pdf Datasheet