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TPA6139A2RGTR Scheda tecnica(PDF) 1 Page - Texas Instruments |
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TPA6139A2RGTR Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 22 page SOC TPA 6139A2 RIGHT DAC DAC LEFT Headphone Programmable Gain -1x to -10x – + – + TPA6139A2 www.ti.com SLOS700B – JANUARY 2011 – REVISED JUNE 2012 DirectPath™ 25-mW Headphone Amplifier With Programmable-Fixed Gain Check for Samples: TPA6139A2 1 FEATURES DESCRIPTION The TPA6139A2PW is a 25mW Pop-Free stereo 23 • DirectPath™ Head Phone driver designed to reduce component – Eliminates Pop/Clicks count, board space and cost. It is ideal for single – Eliminates Output DC-Blocking Capacitors supply electronics where size and cost are critical design parameters. – 3 V to 3.6 V Supply voltage • Low Noise and THD The TPA6139A2 does not require a power supply greater than 3.3V to generate its 25mW, nor does it – SNR > 105 dB at –1x Gain require a split rail power supply. – Typical Vn < 15 μVms 20-20kHz at –1x Gain Designed using TI’s patented DIRECTPATH™ – THD+N < 0.003% at 10k Ω Load and –1x technology which integrates a charge pump to Gain generate a negative supply rail that provides a clean, • 25 mW into 600 Ω Load pop-free ground biased output. The TPA6139A2 is capable of driving 25mW into 32 Ω and 2Vms into a • 2 Vrms Output Voltage into 5k Ω Load 600 Ω load. DIRECTPATH also allows the removal of • Single Ended Input and Output the costly output DC-blocking capacitors. • Programmable Gain Select Reduces The device has fixed gain single ended inputs with a Component Count gain select pin. Using a single resistor on this pin, the – 13x Gain Values designer can choose from 13 internal programmable • Active Mute With More Than 80dB Attenuation gain settings to match the line driver with the Codec output level. It also reduces the component count and • Short Circuit and Thermal Protection board space. • ±8kV HBM ESD Protected Outputs Headphone outputs have ±8kV HBM ESD protection enabling a simple ESD protection circuit. The APPLICATIONS TPA6139A2 has built-in active mute control with more • PDP / LCD TV that 80dB attenuation for pop-free mute on/off control. • Blu-ray Disc™, DVD Players The TPA6139A2 is available in a 14-pin TSSOP and • Mini/Micro Combo Systems a 16-pin QFN. For a pin compatible 2vrms line driver • Soundcards see DRV612. 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 DirectPath, DIRECTPATH are trademarks of Texas Instruments. 3 Blu-ray Disc is a trademark of Blu-ray Disc Association. UNLESS OTHERWISE NOTED this document contains Copyright © 2011–2012, Texas Instruments Incorporated PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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