描述 Description

The TPA2039D1 is a 3.2 W high efficiency filter-free class-D audio power amplifier (class-D amp) with 12 dB of fixed gain in a tiny 1.21 mm × 1.16 mm wafer chip scale package (WCSP). The device requires only one external component. Features like 93% efficiency, 1.5 mA quiescent current, 0.1 μA shutdown current, 82-dB PSRR, 27?μV output noise and improved RF immunity make the TPA2039D1 class-D amplifier ideal for cellular handsets. A fast start-up time of 4?ms with no audible pop makes the TPA2039D1 ideal for PDA and smart-phone applications.

特性 Features

? 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)

? +12 dB Fixed Gain
? Integrated Image Reject Filter for DAC Noise Reduction
? Low Output Noise of 27 μV
? Low Quiescent Current of 1.5 mA
? Differential Input Impedance of 150 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