1FEATURES

2• Filter-Free Class-D Architecture

• 3 W Into 4 Ω at 5 V (10% THD+N)

• 880 mW Into 8 Ω at 3.6 V (10% THD+N)

• Power Supply Range: 2.5 V to 5.5 V

• 3 Selectable AGC functions

• Low Supply Current: 1.8 mA

• Low Shutdown Current: 0.2 μA

• High PSRR: 80 dB

• Fast Start-up Time: 5 ms

• AGC Enable/Disable Function

• Limiter Enable/Disable Function

• Short-Circuit and Thermal Protection

• Space-Saving Package

– 1.63 mm × 1.63 mm WCSP (YZF)

APPLICATIONS

• Wireless or Cellular Handsets and PDAs

• Portable Navigation Devices

• Portable DVD Player

• Notebook PCs

• Portable Radio

• Portable Games

• Educational Toys

• USB Speakers.

DESCRIPTION

The TPA2029D1 is a mono, filter-free Class-D audio

power amplifier with dynamic range compression

(DRC) and automatic gain control (AGC). It is

available in a 1.63 mm x 1.63 mm WCSP package.

The DRC/AGC function in the TPA2029D1 can be

enabled and disabled. The DRC/AGC function is

configured to automatically prevent distortion of the

audio signal and enhance quiet passages that are

normally not heard. The DRC/AGC is also configured

to protect the speaker from damage at high power

levels and compress the dynamic range of music to fit

within the dynamic range of the speaker. The TPA2029D1 is capable of driving 3 W at 5 V into 4Ω

load or 880 mW at 3.6 V into 8Ω load. The device

features an enable pin and also provides thermal and

short circuit protection.

In addition to these features, a fast start-up time and

small package size make the TPA2029D1 an ideal

choice for Notebook PCs, PDAs and other portable

applications.

TPA2029D1 is available with different default

AGC/DRC settings for various system requirements.

See Table 2 for more detail.