illustrate

The TPA2028D1 is a single, filterless Class D volume control, dynamic range compression (DRC) and automatic gain control (AGC) audio power amplifier. It has a 1,63 mm × 1,63 mm wafer chip scale package (WCSP).

The TPA2028D1 with DRC/automatic gain control is via a programmable digital I²C interface. The DRC/AGC feature can be configured to automatically prevent distortion of the audio signal and strengthen calm channels which are usually not heard of. DRC/Automatic Gain Control can also be configured to protect the dynamic range of damaged speakers at high power levels and compress music to match the dynamic range of speakers. The gain can be selected from -28 dB to +30 dB in 1-dB steps.

characteristic

• Fast start-up time for AGC: 5 ms
• Pin compatible with TPA2018D1
• Filterless Class D architecture
• At 3 W, 4 Ω at 5 V (10% THD + N).
• 880 mW at 3.6 to 8Ω five (10% THD+N).
• Supply voltage range: 2.5 V to 5.5 V
• Flexible operation with/without I^{2 C}
• DRC programmable/automatic gain control parameters
• Digital I^{2 C}Volume control
• Selectable gain from -28 dB to 30 dB in 1 dB steps
  (when using compression)
• Selectable attack, release and hold times
• A compression ratio of 4 is selectable
• Low supply current: 1.8 mA;
• Low shutdown current: 0.2 μA
• High power supply rejection ratio: 80 dB
• Automatic gain control on/off function
• Enable/disable features only
• Short circuit and thermal protection
• Space-saving package
  • 1,63mm × 1,63mm Nano Free WCSP Package (YZF)