TPA2031D1中文资料2.5W 单声道、模拟输入 D 类音频放大器数据手册TI规格书

描述 Description

The TPA2031D1 is a 2.5-W high efficiency filter-free class-D audio power amplifier in a 1,45 mm × 1,45 mm wafer chip scale package (WCSP) that requires only three external components.Features like 88% efficiency, -75-dB PSRR, improved RF-rectification immunity, and 8 mm2 total PCB area make the TPA2031D1 class-D amp ideal for cellular handsets. 32 ms start-up time allows the TPA2031D1 to share the same GPIO enable/shutdown control as the CODEC without passing through the CODEC turn-on pop.In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the TPA2031D1. The TPA2031D1 allows independent gain while summing signals from separate sources, and has a low 36 µV noise floor, A-weighted.

特性 Features

• Pin-to-Pin Compatibility with TPA2010D1
• 32 ms Start-up Time Eliminates CODEC Click/Pop noise
• Maximum Battery Life and Minimum Heat
• Efficiency With an 8-Ω Speaker:
• 88% at 400 mW

• 2.8-mA Quiescent Current
• 0.5-µA Shutdown Current

• Only Three External Components
• Optimized PWM Output Stage Eliminates LC Output Filter
• Improved PSRR (-75 dB) and Wide Supply Voltage (2.5 V to 5.5 V) Eliminates Need for a Voltage Regulator
• Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor
• Improved CMRR Eliminates Two Input Coupling Capacitors

• Wafer Chip Scale Packaging (WCSP)
• NanoFree™ (YZF)

• APPLICATIONS
• Ideal for Wireless or Cellular Handsets and PDAs