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