NATIONAL Semiconductor, represented in Australia by Arrow Electronics , has expanded its Webench online design environment to include audio amplifiers. The online tool can speed the selection, design and evaluation of many types of audio amplifiers for a variety of applications.
The design environment supports a range of audio systems using amplifiers with output power ranging from milliwatts to 60W. Products available for design include the LM4811 Boomer dual 105mW amplifier for portable electronic headsets, the LM4890 Boomer 1W amplifier for mobile phones, the LM4883 Boomer dual 2.1W amplifier with stereo headphone functionality and the LM4780 Overture 60W stereo amplifier.
The Webench audio environment can be used can create the complete bill of materials, circuit schematic, power output analysis, heat dissipation analysis and heat sinking for a National Boomer audio amplifier in minutes. An engineer visiting National's website needs no prior experience with the company's products to complete a system. They can select from devices with hundreds of electrical characteristics and architectures, creating an amplifier system design with high-quality audio sound under their specific conditions. The design suite is available free at http://webench.national.com.