TPA6140A2

TPA6140A2 www.ti.com................................................................................................................................................. SLOS598A – MARCH 2009 – REVISED OCTOBER 2009 CLASS-G DIRECTPATH™ STEREO HEADPHONE AMPLIFIER WITH I2C VOLUME CONTROL Check for Samples: TPA6140A2 FEATURES 1 2 TI Class-G Technology Significantly Prolongs Battery Life and Music Playback Time – 0.6 mA / Ch Quiescent Current – 50% to 80% Lower Quiescent Current than Ground-Referenced Class-AB Headphone Amplifiers DirectPathTM Technology Eliminates Large Output DC-Blocking Capacitors – Outputs Biased at 0 V – Improves Low Frequency Audio Fidelity I2C Volume Control – –59 dB to +4 dB Gain Active Click and Pop Suppression Fully Differential Inputs Reduce System Noise – Also Configurable as Single-Ended Inputs SGND Pin Eliminates Ground Loop Noise Wide Power Supply Range: 2.5 V to 5.5 V 100 dB Power Supply Noise Rejection Short-Circuit Current Limiter Thermal-Overload Protection Software Compatible with TPA6130A2 0,4 mm Pitch, 1,6 mm × 1,6 mm WCSP Package APPLICATIONS Cellular Phones / Music Phones Portable Media / MP3 Players Portable CD / DVD Players DESCRIPTION The TPA6140A2 (also known as TPA6140) is a Class-G DirectPath™ stereo headphone amplifier with built-in I2C volume control. Class-G technology maximizes battery life by adjusting the voltage supplies of the headphone amplifier based on the audio signal level. At low level audio s...