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.