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TPA2014D1YZHT 데이터시트(PDF) 1 Page - Texas Instruments |
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TPA2014D1YZHT 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 27 page 1 FEATURES DESCRIPTION APPLICATIONS V DD SW IN– IN+ AGND PGND VOUT+ VOUT– V OUT CC V IN CC 10 F m 22 F m 1 F m ToBattery Differential Input C IN C IN V FB CC SDb SDd ShutDownBoost ShutDownClassD GAIN Gain(V /Float/GND) CC 2.2to6.2 H m GPIO 1 F m R1 50k R2 453k TPA2014D1 TPA2014D1 www.ti.com ............................................................................................................................................................... SLAS559A – MAY 2008 – REVISED JUNE 2008 1.5-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED BOOST CONVERTER • High Efficiency Integrated Boost Converter (Over 90% Efficiency) The TPA2014D1 is a high efficiency Class-D audio power amplifier with an integrated boost converter. It • 1.5-W into an 8-Ω Load from a 3.6-V Supply drives up to 1.5 W (10% THD+N) into a 8 Ω speaker • Operates from 2.5 V to 5.5 V from a 3.6 V supply. With 85% typical efficiency, the • Efficient Class-D Prolongs Battery Life TPA2014D1 helps extend battery life when playing • Independent Shutdown for Boost Converter audio. and Class-D Amplifier The built-in boost converter generates a higher • Differential Inputs Reduce RF Common Noise voltage rail for the Class-D amplifier. This provides a louder audio output than a stand-alone amplifier • Built-in INPUT Low Pass Filter Decreases RF connected directly to the battery. It also maintains a and Out of Band Noise Sensitivity consistent loudness, regardless of battery voltage. • Synchronized Boost and Class-D Eliminates Additionally, the boost converter can be used to Beat Frequencies supply external devices. • Thermal and Short-Circuit Protection The TPA2014D1 has an integrated low pass filter to • Available in 16-ball WCSP and 20-Lead QFN improve RF rejection and reduce out-of-band noise, Packages increasing the signal to noise ratio (SNR). A built-in PLL synchronizes the boost converter and Class-D • 3 Selectable Gain Settings of 2 V/V, 6 V/V, and switching frequencies, thus eliminating beat 10 V/V frequencies and improving audio quality. All outputs are fully protected against shorts to ground, power supply, and output-to-output shorts. • Cell Phones • PDA • GPS • Portable Electronics 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2008, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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