1 Features
1• Filter-Free Class-D Architecture
• 1.7 W/Ch Into 8 Ω at 5 V (10% THD+N)
• 750 mW/Ch Into 8 Ω at 3.6 V (10% THD+N)
• 2.8 W/Ch Into 4 Ω at 5 V (10% THD+N)
• 1.5 W/Ch Into 4 Ω at 3.6 V (10% THD+N)
• Power Supply Range: 2.5 V to 5.5 V
• Flexible Operation With or Without I2C
• Programmable DRC and AGC Parameters
• Digital I2C Volume Control
• Selectable Gain from –28 dB to 30 dB in 1-dB
Steps (When Compression is Used)
• Selectable Attack, Release, and Hold Times
• 4 Selectable Compression Ratios
• Low Supply Current: 3.5 mA
• Low Shutdown Current: 0.2 μA
• High PSRR: 80 dB
• Fast Start-Up Time: 5 ms
• AGC Enable or Disable Function
• Limiter Enable or Disable Function
• Short-Circuit and Thermal Protection
• Space-Saving Package
– 2.2 mm × 2.2 mm Nano-Free™ DSBGA (YZH)

2 Applications
• Wireless or Cellular Handsets and PDAs
• Portable Navigation Devices
• Portable DVD Players
• Notebook PCs
• Portable Radios
• Portable Games
• Educational Toys
• USB Speakers

3 Description
The TPA2016D2 device is a stereo, filter-free Class-D
audio power amplifier with volume control, dynamic
range compression (DRC), and automatic gain
control (AGC). It is available in a 2.2 mm × 2.2 mm
DSBGA package and 20-pin QFN package.
The DRC and AGC function in the TPA2016D2 is
programmable through a digital I2C interface. The
DRC and AGC function can be configured to
automatically prevent distortion of the audio signal
and enhance quiet passages that are normally not
heard. The DRC and AGC can also be 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 gain
can be selected from –28 dB to +30 dB in 1-dB steps.
The TPA2016D2 is capable of driving 1.7 W/Ch at 5
V or 750 mW/Ch at 3.6 V into 8-Ω load or 2.8 W/Ch
at 5 V or 1.5 W/Ch at 3.6 V into 4-Ω load. The device
features independent software shutdown controls for
each channel and also provides thermal and shortcircuit
protection.
In addition to these features, a fast start-up time and
small package size make the TPA2016D2 an ideal
choice for cellular handsets, PDAs, and other
portable applications.