Consumer Audio Applications Center

A SemiApps.com Applications Center

Hi-Fi/ Professional Audio White Papers :: Low-Power, Low-Overhead, High-Fidelity Digital Sound for SOCs:

Tensilica’s HiFi 2 Audio Engine was carefully crafted to meet the requirements for the broadest possible range of consumer products. The HiFi 2 Audio Engine is available as an audio-extension...  >>  

Hi-Fi/ Professional Audio White Papers :: A New Perspective on Decimation and Interpolation Filters

A New Perspective on Decimation and Interpolation Filters. Steve Green Technical Marketing Manager, Mixed-Signal Products, Cirrus Logic, Inc. it is the removal of the digital decimation and...  >>  

Hi-Fi/ Professional Audio Application Notes :: Maxim: Application notes for Audio Circuits

Some of the Application Notes are : 1. Minimizing RF Susceptibility in Cell-Phone Headphone Amplifiers. 2. ALC Improves Sound Quality While Protecting Speakers 3. Reduce EMC in Class-D Amplifiers...  >>  

Digital/ Satellite Radio Application Notes :: Satellite Radio Receiver 1st Mixer: MAX2682 Tuned for 2642.5MHz

The MAX2682 miniature, low-cost, low-noise downconverter is designed for low-voltage operation and is ideal for use in portable communications equipment. Signals at the RF input port are mixed with...  >>  

Internet Audio/ MP3 White Papers :: Designing Efficient, Real-Time Audio Systems with VisualAudio

The VisualAudio is a new software tool for designing and developing audio systems. This article describes its framework, audio modules, and application to audio product development.  >>  

Internet Audio/ MP3 Application Notes :: Circuit Refinements Ensure Quality Audio in Portable Computers

This article examines key parameters affecting headphone amp performance including: PSRR, turn-on transient suppression, and PCB grounding solutions. It focuses on just one application (the...  >>  

Internet Audio/ MP3 Application Notes :: Do Passive Components Degrade Audio Quality in Your Portable Device?

In an audio circuit, passive components define the gain, provide biasing and power-supply rejection, and establish DC-blocking from one stage to the next. Portable audio, for which space, height,...  >>  

Internet Audio/ MP3 Application Notes :: ESD Protection Utilizing PESD Devices for Universal Serial Bus 2.0

The USB 2.0 protocol allows for data transfer rates of up to 480Mbps and supports plug and play hot swappable installation and operation. As a result of the increase in speed, low capacitance ESD...  >>  

Hi-Fi/ Professional Audio Application Notes :: Breakthrough Amplifier Technology Addresses Large Growing Markets

High performance, high power efficiency, small size and low system cost, Differentiated technology (Class T®) combines the benefits of digital amplification with the audio quality of the best...  >>  

Hi-Fi/ Professional Audio White Papers :: Design Considerations for a New Generation Mid-voltage Power MOSFET Technology

In this paper, the development of a new generation mid-voltage MOSFET technology covering multiple emerging applications is described. The basic methodology is based on advanced loss modeling of...  >>  

Internet Audio/ MP3 Application Notes :: Power Adapter for Portable Audio Players

Design Idea DI-140 TinySwitch-III 10 W Adapter for Portable Audio Players With Latching Overvoltage and Over-Temperature Shutdown Protection.  >>  

Hi-Fi/ Professional Audio Application Notes :: Differentiating digital potentiometer features

Fully understanding and using features can improve system performance and simplify designs.  >>  

Hi-Fi/ Professional Audio Application Notes :: National's Overture Series for High Power Solutions

National Semiconductor has a broad portfolio of monolithic power integrated circuits covering power levels from a few hundred milliwatts up to 60W of non-clipped continuous average power. These ICs...  >>  

Hi-Fi/ Professional Audio Application Notes :: Class D Audio Amplifier Basics

A Class D audio amplifier is basically a switching amplifier or PWM amplifier. There are a number of different classes of amplifiers. This application note takes a look at the definitions for the...  >>  

Internet Audio/ MP3 White Papers :: Product Roundup: Audio/video multimedia ICs

New technologies and products enable portables and TV manufacturers to captivate consumers with remarkable video, audio, and imaging. Here is a roundup of recently introduced products.  >>  

Hi-Fi/ Professional Audio White Papers :: Specifying the Jitter Performance of Audio Components

This paper reviews various ways of characterizing and quantifying jitter, and refines several of them for audio purposes. It also attempts to present a common, unambiguous terminology. The focus...  >>  

Hi-Fi/ Professional Audio White Papers :: Hardware Accelerators Boost the Performance of Next-Generation SHARC Processors

The recently announced Analog Devices SHARC ADSP-2146x processor incorporates hardware accelerators for implementing three widely used signal processing operations  >>  

Internet Audio/ MP3 Application Notes :: MP3 Personal Digital Players Using Actel FPGAs

These players use Actel’s A40MX04 and A42MX09 FPGAs respectively to implement application-specific functions. In each case, these Actel FPGAs met the price, power, and performance...  >>  

Hi-Fi/ Professional Audio Application Notes :: New trends toward high-efficiency portable power and audio

Power savings, space, and cost drive next-generation designs  >>