Fourth-generation SHARC DSP yields 2,700 MFLOPS

Fourth-generation SHARC DSP yields 2,700 MFLOPS

High-performance audio processor features hardware accelerators and 5 Mbits of SRAM

The ADSP-21469 fourth-generation SHARC floating-point DSP operates at up to 450 MHz and 2,700 MFLOPS more than doubling previous-generation performance. The chip features three hardware accelerators for finite impulse response, infinite impulse response, and fast Fourier transform. It has 5 Mbits of SRAM (a 60% increase over the previous generation), and a high-speed DDR2 SDRAM external memory interface.

Targeting high-performance pro audio systems, the IC 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 SPI ports. The device has 16 PWM channels, eight serial ports, and an enhanced DMA engine including scatter/gather DMA. It comes in a PBGA324 package and in both commercial and industrial temperature ranges. ($31.50 ea/1,000 — samples available 1st qtr 2009.)

Analog Devices , Wilmington , MA
Information 800-262-5643
http://www.analog.com