Blackfin DSPs add advanced power management, security

Blackfin DSPs add advanced power management and security

Signal processors scale MIPS to match workload

Blackfin ADSP-BF527/BF525/BF522 digital signal processors address the needs of portable media players, voice-over-IP (VoIP) phones, IP cameras, and mobile TV devices for higher-and-higher performance, combined with low power. The devices feature advanced dynamic power management capabilities to achieve the line’s best power efficiency yet—as low as 0.16-mW/MHz core power at 250 MHz. They also incorporate Lockbox Secure Technology to provide capabilities for implementing the next generation of security and digital rights management.

The 300/400/600 MHz ICs use an internal voltage regulator to enhance power management, with scaling to match the MIPS necessary for the function being executed. The devices have two 16-bit MACs, two 40-bit ALUs, and four 8-bit video ALUs. The 289-ball MBGA packaged chips include high speed USB OTG, an optional 10/100 Ethernet MAC, a host DMA port, and a NAND flash controller. Models with a C suffix add a low-power stereo audio codec. Memory includes 48 Kbytes of instruction SRAM, dual 16 Kbytes caches, 32 Kbytes of data SRAM, and a 4 Kbyte scratchpad SRAM. ($5.50, 300-MHz BF522L; $14.50, 600-MHz BF527 ea/10,000—samples available now, prod qty, January 2008.)

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