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TPA3121D2 Datasheet(PDF) 1 Page - Texas Instruments |
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TPA3121D2 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 32 page 1 F m SD MuteControl PVCCL TPA3121D2 SIMPLIFIED APPLICATIONCIRCUIT PVCCR VCLAMP GAIN1 BYPASS 1 F m 1 F m 0.22 F m AGND LeftChannel RightChannel 10Vto26V 10Vto26V 4-StepGainControl ShutdownControl LIN RIN BSR BSL PGNDR PGNDL 0.22 F m 33 H m 33 H m 0.22 F m 470 F m 0.22 F m 1 F m 470 F m GAIN0 AVCC MUTE ROUT LOUT S0267-01 TPA3121D2 www.ti.com SLOS537B – MAY 2008 – REVISED JANUARY 2014 15-W STEREO CLASS-D AUDIO POWER AMPLIFIER Check for Samples: TPA3121D2 1 FEATURES APPLICATIONS 23 • 10-W/Ch Stereo Into an 8- Ω Load From a 24-V • Flat Panel Display TVs Supply • DLP® TVs • 15-W/Ch Stereo Into a 4- Ω Load from a 22-V • CRT TVs Supply • Powered Speakers • 30-W/Ch Mono Into an 8- Ω Load from a 22-V Supply DESCRIPTION • Operates From 10 V to 26 V The TPA3121D2 is a 15-W (per channel), efficient, class-D audio power amplifier for driving stereo • Can Run From +24 V LCD Backlight Supply speakers in a single-ended configuration or a mono • Efficient Class-D Operation Eliminates Need speaker in a bridge-tied-load configuration. The for Heat Sinks TPA3121D2 can drive stereo speakers as low as 4 Ω. • Four Selectable, Fixed-Gain Settings The efficiency of the TPA3121D2 eliminates the need for an external heat sink when playing music. • Internal Oscillator to Set Class D Frequency (No External Components Required) The gain of the amplifier is controlled by two gain select pins. The gain selections are 20, 26, 32, and • Single-Ended Analog Inputs 36 dB. • Thermal and Short-Circuit Protection With Auto Recovery The patented start-up and shutdown sequences minimize pop noise in the speakers without additional • Space-Saving Surface Mount 24-Pin TSSOP circuitry. Package • Advanced Power-Off Pop Reduction 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. 2 DLP is a registered trademark of Texas Instruments. 3 System Two, Audio Precision are trademarks of Audio Precision, Inc. PRODUCTION DATA information is current as of publication date. Copyright © 2008–2014, 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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