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Send til en ven   Udskriv3/8 2011 kl. 15:11
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Audiosubsystem med integreret clockgenerator

IDT lancerer et audiosystem, hvor der er integreret programmerbar clockgenerator, hvilket giver en række tekniske og logistikmæssige fordele (in english)

IDT has announced what the company claims is the world’s first audio subsystem with integrated programmable clock generator for portable applications. This new device minimizes board space and reduces system cost through integration, and provides time-to-market advantages by eliminating the need for multiple external crystals and oscillators that typically involve long lead times.
 
The ACS42200 family includes a low-power, high-fidelity codec targeted at portable applications such as tablet computers, portable games, personal navigation devices, portable projectors and speaker docks. The device also integrates four programmable system PLLs for internal and external timing, a DDX class-D speaker amplifier, a true cap-less headphone amplifier, and advanced built-in audio processing capability for 3D, bass and treble enhancement.
 
- The integration of our ultra-efficient DDX technology and industry-leading timing IP is a perfect example of how IDT brings

the analog and digital worlds together to create value, says Patrick Griffith, senior director of marketing for the Analog and Power Division at IDT.

- The integrated programmable PLLs and high-efficiency, high-fidelity audio solve several challenges at once, making the end-product better, smaller, cheaper, and in the consumer’s hands sooner. The ACS42200 extends IDT’s computing audio portfolio, well-positioning IDT to support the transition from notebooks to tablets.
 
The four integrated programmable system PLLs are unique to IDT’s codec solution and enable the timing management of a system’s applications processor, USB interface, secondary audio and other subsystems. This allows system designers to eliminate large, costly crystals and oscillators that can often cause procurement delays, while the integrated spread spectrum capability can eliminate EMI concerns.

In addition, IDT’s patented DDX class-D technology offers higher efficiency, consuming less power than traditional binary class-D solutions. This results in a significant improvement in battery life – a critical demand of next generation portable consumer electronics.
 
All of these advantageous features are further complemented by a programmable DSP filter engine that enriches the sound presence through dynamics processing, equalization, speaker protection, and louder volume when using small speakers. IDT also offers complete driver support and tuning tools for faster time-to-market with Linux and Android systems, and flexibility in speaker selection and industrial design

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