DIO2140中文资料具有可变增益和短路保护的2.8W模拟输入D类音频放大器数据手册DIOO规格书

描述 Description

The DIO2140 is a 2.8 W high-efficiency filter-free Class-D audio amplifier, which needs only three external components. Its optimized PWM output stage eliminates the LC output filter. \
\
The DIO2140 features its filter-free Class-D architecture, which leads to a reduction of peripheral components amount, PCB board area, and system cost. And high efficiency of up to 90% makes it suitable for cell phones and other mobile device applications. \
\
Moreover, the DIO2140 is also equipped with protection functions, such as a short circuit protection function for the speaker output terminal, thermal shutdown function for inside of the device, and under voltage lockout.

特性 Features

• Maximum output: > 2.5 W, output under 4 Ω load
• Distortion rate (THD):
• 0.05% (VDD = 5.0 V, PO = 1 W)
• High efficiency up to 83% at 400 mW
• Filter-free Class-D architecture
• Needs only three external components
• Short circuit protection function
• Thermal shutdown function
• Under voltage lockout function
• Green package: DFN-8 and MSOP-8

应用 Application

• Wireless or cellular handsets and PDAs
• Personal navigation devices
• General portable audio devices