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TPA6140A2YFFT Folha de dados(PDF) 1 Page - Texas Instruments |
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TPA6140A2YFFT Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 27 page 1 FEATURES DESCRIPTION APPLICATIONS INR+ INR- INL+ INL- AGND SGND OUTR HPVSS CPP CPN SW HPVDD OUTL TPA6140A2 Vbat CODEC OUTR+ OUTR- OUTL+ OUTL- 1 F m SDA SCL SCL AVDD SDA 2.2 H m 2.2 F m 1 F m 2.2 F m TPA6140A2 www.ti.com .................................................................................................................................................................................................. SLOS598 – MARCH 2009 CLASS-G DIRECTPATH™ STEREO HEADPHONE AMPLIFIER WITH I2C VOLUME CONTROL 2 • TI Class-G Technology Significantly Prolongs The TPA6140A2 (also known as TPA6140) is a Battery Life and Music Playback Time Class-G DirectPath™ stereo headphone amplifier with built-in I2C volume control. Class-G technology – 0.6 mA / Ch Quiescent Current maximizes battery life by adjusting the voltage – 50% to 80% Lower Quiescent Current than supplies of the headphone amplifier based on the Ground-Referenced Class-AB Headphone audio signal level. At low level audio signals, the Amplifiers internal supply voltage is reduced to minimize power • DirectPathTM Technology Eliminates Large dissipation. DirectPathTM technology eliminates external DC-blocking capacitors. Output DC-Blocking Capacitors – Outputs Biased at 0 V The device operates from a 2.5 V to 5.5 V supply voltage. Class-G operation keeps total supply current – Improves Low Frequency Audio Fidelity below 5.0 mA while delivering 500 µW per channel • I2C Volume Control into 32 Ω. Shutdown mode reduces the supply – –59 dB to +4 dB Gain current to less than 3 µA and is activated through the I2C interface. • Active Click and Pop Suppression • Fully Differential Inputs Reduce System Noise The TPA6140A2 (TPA6140) I2C register map is compatible to the TPA6130A2, simplifying software – Also Configurable as Single-Ended Inputs development. • SGND Pin Eliminates Ground Loop Noise The amplifier outputs have short-circuit and • Wide Power Supply Range: 2.5 V to 5.5 V thermal-overload protection along with ±8 kV HBM • 100 dB Power Supply Noise Rejection ESD protection, simplifying end equipment • Short-Circuit Current Limiter compliance to the IEC 61000-4-2 ESD standard. • Thermal-Overload Protection The TPA6140A2 (TPA6140) is available in a 0,4 mm • Software Compatible with TPA6130A2 pitch, 16-bump 1,6 mm × 1,6 mm WCSP (YFF) package. • 0,4 mm Pitch, 1,6 mm × 1,6 mm WCSP Package • Cellular Phones / Music Phones • Portable Media / MP3 Players • Portable CD / DVD Players 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 Class-G DirectPath, DirectPath are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2009, 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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