80mW, Capless, Stereo Headphone Amplifier with Shutdown,SGM4917 Replace TPA6138.
FEATURES

• SGM4917A: External Feedback Gain Network

  SGM4917B: Fixed -2V/V Gain

• No Bulky DC-Blocking Capacitors Required

• Ground-Referenced Outputs Eliminate DC-Bias

  Voltage on Headphone Ground Pin

• No Degradation of Low-Frequency Response

  Due to Output Capacitors

• Differential Inputs for Enhanced Noise Cancellation

• 80mW into 32Ω Load from 5V Power Supply at

  THD+N = 0.1% (TYP, per Channel)

• Low 0.02% THD+N

• High PSRR (-78dB at 217Hz)

• Integrated Click-and-Pop Suppression

• 2.7V to 5.5V Single Supply Operation

• Low Quiescent Current (2.7mA at VDD = 5V)

• Shutdown Control

• Under-Voltage Lockout Function

• -40℃ to +85℃ Operating Temperature Range

• Available in Green TQFN-3×3-16L Package

PIN CONFIGUTION
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TPA6138 TPA6138.pdf

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FEATURES

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