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TPA6140A2 Overview

TPA6140A2 Overview Sachin Ranganathan Portable Audio Marketing Manager March 2009 TPA6140A2 Class-G DirectPath TM Headphone Amplifier with I 2 C Volume Control EVM Features TI Class-G technology DirectPath™ technology 1.6 mm x 1.6 mm, 0.4 mm pitch WCSP 1.2 mA from 2.3 V to 5.5 V supply

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TPA6140A2 Overview

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  1. TPA6140A2Overview Sachin Ranganathan Portable Audio Marketing Manager March 2009

  2. TPA6140A2Class-G DirectPathTM Headphone Amplifier with I2C Volume Control EVM Features • TI Class-G technology • DirectPath™ technology • 1.6 mm x 1.6 mm, 0.4 mm pitch WCSP • 1.2 mA from 2.3 V to 5.5 V supply • 32-step, -59 dB to +4 dB gain range • I2C interface • Fully differential (or SE) stereo input • 100 dB+ power supply rejection at 217 Hz • No turn-on or turn-off pop • High-impedance output mode Benefits • Long battery life for MP3 playback • No large output capacitors • Small board solution • Very Low power consumption • Built-in volume control without ext. resistors • Simple digital control interface • Excellent system noise rejection • No GSM frame-rate noise • Noiseless activation • No ext. switch reqd. for multi-function jacks Applications • Mobile/Smart phones • Portable Media/MP3 Players 1ku: WCSP $0.95 TPA6140A2EVM

  3. TPA6140A2Device Block Diagram

  4. TI Stereo Headphone Amplifiers TPA6132A2 TPA6135A2 TPA6110A2 TPA6111A2 TPA6112A2 TPA6130A2 TPA4411 • 25 mW/Ch Output Power • DirectPathTM (Cap-free) • Low Power Consumption • Advanced Pop Reduction • Hi-Z Mode (TPA6135A2) • Package: QFN • 80 mW/Ch Output Power • DirectPathTM (Cap-free) • Fixed Gain • Package: QFN, WCSP • 138 mW/Ch Output Power • DirectPathTM (Cap-free) • I2C Volume Control • Advanced Pop Reduction • Package: QFN, WCSP • 150 mW/Ch Output Power • PC Supply Compatible • External Gain • TPA6110A2, TPA6111A2: Different Pin Order • TPA6112A2: Diff Inputs • Package: MSOP-PowerPad, SOIC (TPA6111A2) TPA6140A2 • High efficiency Class-G • Very Low Power Consumption • DirectPath • I2C volume control • Hi-Z mode • 0.4 mm pitch WCSP TPA6100A2 TPA6101A2 TPA6102A2 • 50 mW/Ch Output Power • 0.75 mA Quiescent Current • TPA6100A2: External Gain • TPA6101A2: 2 dB Fixed Gain • TPA6102A2: 14 dB Fixed Gain • Package: BGA (TPA6101A2), MSOP, SOIC Traditional 105 dB 100 dB NEW SNR 95 dB 90 dB Class-G + DirectPathTM 85 dB DirectPathTM

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