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New Generation Of SHARC® Processors From Analog Devices Hits All The Right Notes For Pro Audio

More channels, more effects, more modeling, higher sample rates: professional digital audio applications keep pushing the limits. To bring developers what they need to redefine true-to-life sound in pro systems, Analog Devices, Inc. (NYSE: ADI ) is introducing the SHARC® ADSP-21469. The first family member to debut in the fourth generation of SHARC digital signal processors, the ADSP-21469 operates at the family’s highest performance ever — up to 450 MHz/2700 MFLOPS — with the addition of hardware accelerators as well as application-enabling features that include increased on-chip SRAM, a high-speed DDR2 SDRAM external memory interface, and link ports.

“Audio developers made SHARC the floating-point processor synonymous with high-end audio. Now we are returning that great honor with a fourth-generation SHARC processor to help them take their products to the next level,” said Jerry McGuire, vice president, General Purpose DSP, Analog Devices, Inc. “These are customers that always want to stretch in terms of processing, data movement, and decoding. The ADSP-21469 brings them a new level of performance and a growth path, in an application-optimized processor they can use to reduce time to market and system cost.

Introducing the SHARC ADSP-21469
Optimized for pro audio applications such as studio recording equipment, high-end effects processors, commercial audio, and modeling applications, the SHARC ADSP-21469 more than doubles the 32-bit floating-point family’s performance compared with earlier SHARC processors. A key factor is the addition of hardware accelerators for widely used signal processing operations: FIR (Finite Impulse Response), IIR (Infinite Impulse Response), and FFT (Fast Fourier Transform).

A further performance uplift and plenty of headroom are provided by additional features that include up to 5Mbits of on-chip SRAM, which represents a 60 percent increase over previous SHARC processors and enables even faster, more efficient execution of effects processing.

A reduction in instruction opcode size frees up as much as 30 percent of the on-chip memory for application code storage. For balanced system performance, the SHARC ADSP-21469 is one of the first floating point processors to include a high-speed DDR2 SDRAM external memory interface.

To support the computation- and data-intensive processing demands of higher sample rates and advanced audio formats, the ADSP-21469 also offers link ports that enable data transfers between two SHARC processors, and provide a parallel command interface for faster data movement than is enabled by the processors’ serial peripheral interface (SPI).

These application-oriented processors are code-compatible with prior generation SHARC processors and make use of familiar development tools such as ADI’s CROSSCORE® software and hardware tools that include the VisualDSP++® integrated development and debug environment (IDDE).

Martes, 07 Octubre, 2008 - 12:28
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