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Reference Design
TPA2012D2
SLOS438F – DECEMBER 2004 – REVISED MARCH 2017
TPA2012D2 2.1-W/Channel Stereo Filter-Free Class-D Audio Power Amplifier
1 Features
•1 Output Power By Package: – WQFN: – 2.1 W/Ch Into 4 Ω at 5 V – 1.4 W/Ch Into 8 Ω at 5 V – 720 mW/Ch Into 8 Ω at 3.6 V – DSBGA: – 1.2 W/Ch Into 4 Ω at 5 V (Thermally Limited) – 1.3 W/Ch Into 8 Ω at 5 V – 720 mW/Ch Into 8 Ω at 3.6 V
• Only Two External Components Required • Power Supply Range: 2.5 V to 5.5 V • Independent Shutdown Control for Each Channel • Selectable Gain of 6, 12, 18, and 24 dB • Internal Pulldown Resistor on Shutdown Pins • High PSRR: 77 dB at 217 Hz • Fast Start-Up Time (3.