Audio and Video Training and Resources
Videos
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Web-Based Utilities
The Class D audio driver interactive demonstration allows you to see the sound quality performance of the Si824x Class D audio driver over the audible spectrum. The demo shows the total harmonic distortion + noise (THD + N) ratio, a universal measure of sound quality for audio amplifiers.
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White Papers
Automotive OEMs and Tier 1 suppliers understand that consumers expect a superior in-vehicle audio experience and are responding by designing sophisticated infotainment systems. The radio components used in today’s vehicles need to be cost-effective while meeting rigorous automotive levels of performance. With the advent of multi-tuner automotive infotainment systems, car radio developers must now consider a wide range of performance requirements and new technologies in their designs. Download this white paper to get a closer look at come of these key requirements.
As a growing number of portable applications such as mobile phones and portable media players integrate the FM radio function, there’s a misconception that traditional radios are no longer needed. In reality, wheel-tuned radios have remained immensely popular. This article will discuss how to design a mid-level wheel-tuned radio with an LCD to display frequencies, and it will explore the practical considerations in selecting audio ICs and display drivers, as well as how to leverage these technologies to deliver the best end-user radio tuning experience.
轮调数显收音机系统设计要素
Silicon TV tuner ICs are rapidly displacing legacy mixer oscillator phase-locked loop CAN tuner technologies to reduce cost and size and improve performance. Since several suppliers offer a wide variety of silicon TV tuner products, navigating the competing options can be a complex process given the wide range of issues surrounding TV tuner IC selection. Putting these technical issues into perspective will help simplify the TV tuner selection process. Learn more about developing flexible silicon TV tuner architectures.
利用新一代硅电视调谐器 IC 进行经济的主流电视设计
運用新一代矽晶電視調諧器IC進行最具成本效益的主流電視設計
This in-depth Silicon Labs white paper explores how to improve the performance and reliability in high power Class D audio applications by mitigating common design challenges such as Programmable Dead-Time, Level Shifting, Noise Immunity, and Power Efficiency.
FM is a form of analog angle modulation in which the baseband information carrying signal varies the frequency of a carrier wave. Audio signals transmitted by FM radio ICs are the most common. However, FM radio can also transmit digital data with the low bandwidth digital information known as Radio Data System (RDS) in Europe and Radio Broadcast Data System (RBDS) in the U.S. This article presents a basic tutorial on FM with descriptions of multiplex (MPX) signaling and noise improvement techniques such as stereo-mono blending and soft mute.
FM radio has witnessed an explosion of interest from the market for its applications in mobile and personal media players; however, the traditional FM radio IC design approach requires a long antenna, such as a wired headphone, which limits its usefulness and usability. This whitepaper provides a description of an FM radio receiver solution that enables the antenna to be integrated or embedded inside the portable device enclosure, making the headphone cable optional. Also covering techniques for maximizing sensitivity, including maximizing efficiency at the resonant frequency and maximizing efficiency across the FM band with a tunable matching network.
The Using Antenna Diversity to Create Highly Robust Radio Links White Paper looks at the principles of antenna diversity and how RSSI (received signal strength indicator) can be used in a software-based algorithm to reduce the processor load when managing multiple antennas.
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Presentations
Board Layout & Guidelines Using the Si47xx AM/FM Tuner from Silicon Labs
The Si4730/31 ICs are the industry's first fully integrated, 100% CMOS AM/FM radio receivers. The Si4730/31 AM/FM radio ICs provide the space savings and low-power consumption necessary for portable devices while delivering the high performance and design simplicity desired for all AM/FM solutions.
The Si4749/06 RDS data receiver ICs are 100% CMOS receivers, offering full receive functionality from antenna to RDS/RBDS data for use in the automotive and portable navigation markets. The Si4749/06 is an ideal RDS/RBDS data receiver for Traffic Message Channel (TMC) and Open Data Applications (ODA) applications frequently used in conjunction with GPS functionality.
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