FEATURES

• Filter-Free Mono Class-D Speaker Amp

• GAIN Pin Selects Between 6 dB and 12 dB

• 3.2 W into 4 Ω from 5 V supply at 10% THD+N

• Powerful Mono Class-D Speaker Amplifier

– 1% at 1.4 W into 8 Ω from 5 V Supply

– 1% at 2.5 W into 4 Ω from 5 V Supply

• 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 1,21 mm × 1,16 mm 0,4 mm Pitch WCSP

APPLICATIONS

• Wireless or Cellular Handsets and PDAs

• Portable Navigation Devices

• General Portable Audio Devices

DESCRIPTION

The TPA2038D1 is a 3.2 W into 4-ohm (10% THD) high efficiency filter-free class-D audio power

amplifier. The GAIN pin sets gain to either 6 dB or

12 dB.

Features like 95% efficiency, 1.5 mA quiescent

current, 0.5 μA shutdown current, 81 dB PSRR,

20 μV output noise, and improved RF immunity make

the TPA2038D1 class-D amplifier ideal for cellular

handsets. A start-up time is within 4 ms with no turn-

on pop.

The TPA2038D1 is available in a 1.21 mm x

1.16 mm, 0.4 mm pitch wafer chip scale package

(WCSP).