TPA2037D1 固定增益3.2W單聲道D類，具有集成 DAC噪聲濾波器

The TPA2037D1 is a 3.2 W high efficiency filter-free class-D audio power amplifier (class-D amp) with 6 dB of fixed gain in a 1.21 mm x 1.16 mm wafer chip scale package (WCSP). The device requires only one external component.

Features like 95% efficiency, 1.5 mA quiescent current, 0.1 μA shutdown current, 81-dB PSRR, 20?μV output noise, and improved RF immunity make the TPA2037D1 class-D amplifier ideal for cellular handsets. A start-up time of 4?ms with no audible pop makes the TPA2037D1 ideal for PDA and smart-phone applications.

特性

• Powerful Mono Class-D Speaker Amplifier
  • 3.24 W (4 , 5 V, 10% THDN)
  • 2.57 W (4 , 5 V, 1% THDN)
  • 1.80 W (8 , 5 V, 10% THDN)
  • 1.46 W (8 , 5 V, 1% THDN)
• +6 dB Fixed Gain
• Integrated Image Reject Filter for DAC Noise Reduction
• Low Output Noise of 20 μV
• Low Quiescent Current of 1.5 mA
• Differential Input Impedance of 300 k
• Auto-Recovering Short-Circuit Protection
• Thermal-Overload Protection
• Filter-Free Mono Class-D Amp
• 9-Ball 1,21 mm × 1,16 mm 0,4mm Pitch WCSP
• APPLICATIONS
  • Wireless or Cellular Handsets and PDAs
  • Portable Navigation Devices
  • General Portable Audio Devices

APPLICATION CIRCUIT