The TPA2015D1 is a high efficiency Class-D audio power amplifier with battery-tracking SpeakerGuard AGC technology and an integrated adaptive boost converter that enhances efficiency at low output power. It drives up to 2?W into an 8? speaker (6% THD). With 85% typical efficiency, the TPA2015D1 helps extend battery life when playing audio.

The built-in boost converter generates a 5.5?V supply voltage for the Class-D amplifier. This provides a louder audio output than a stand-alone amplifier directly connected to the battery. The SpeakerGuard^TM AGC adjusts the Class-D gain to limit battery current and prevent heavy clipping.

The TPA2015D1 has an integrated low-pass filter to improve the RF rejection and reduce DAC out-of-band noise, increasing the signal to noise ratio (SNR).

特性

• Built-In SpeakerGuard? Automatic Gain Control (AGC)
  with Enhanced Battery Tracking
  • Limits Battery Current Consumption
  • Prevents Audio Clipping
• 2 W into 8? Load From 3.6 V Supply (6% THD)
• Integrated Adaptive Boost Converter
  • Increases Efficiency at Low Output Power
• Low Quiescent Current of 1.7 mA from 3.6 V
• Operates From 2.5 V to 5.2 V
• Thermal and Short-Circuit Protection with Auto Recovery
• Three Gain Settings: 6 dB, 15.5 dB, and 20 dB
• Independent Control for Boost and Class-D
• Pin-to-Pin Compatible with TPA2013D1
• Available in 1.954 mm × 1.954 mm 16-ball WCSP Package
• APPLICATIONS
• Cell Phones, PDA, GPS
• Portable Electronics and Speakers