1 Features
1• Powerful Mono Class-D Amplifier
– 3.24 W (4 Ω, 5 V, 10% THDN)
– 2.57 W (4 Ω, 5 V, 1% THDN)
– 1.80 W (8 Ω, 5 V, 10% THDN)
– 1.46 W (8 Ω, 5 V, 1% THDN)
• Integrated Feedback Resistor of 300 kΩ
• Integrated Image Reject Filter for DAC Noise
Reduction
• Low Output Noise of 20 μV
• Low Quiescent Current of 1.5 mA
• Auto Recovering Short-Circuit Protection
• Thermal Overload Protection
• 9-Ball, 1.21mm x 1.16 mm 0.4 mm Pitch DSBGA

2 Applications
• Wireless or Cellular Handsets and PDAs
• Portable Navigation Devices
• General Portable Audio Devices

3 Description
The TPA2011D1 is a 3.2-W high efficiency filter-free
class-D audio power amplifier (class-D amp) in a 1.21 mm × 1.16 mm wafer chip scale package
(DSBGA) that requires only three external
components.
Features like 95% efficiency, 86-dB PSRR, 1.5 mA
quiescent current and improved RF immunity make
the TPA2011D1 class-D amp ideal for cellular handsets. A fast start-up time of 4 ms with no audible
turn-on pop makes the TPA2011D1 ideal for PDA
and smart-phone applications. The TPA2011D1
allows independent gain while summing signals from
separate sources, and has a low 20 μV noise floor.