DSPs target power constrained applications

12th June 2014

Analog Devices

Mick Elliott

0 0

Datasheet

Analog Devices’ latest ADSP-BF70x Blackfin digital signal processor family delivers 800 MMACS of processing power at less than 100 mW – double the performance or half the power of competing devices, claims the company. The eight-member Blackfin processor family includes up to 1MBit of internal SRAM, eliminating external memory in many applications, while a second configuration features an optional DDR memory interface.

The devices open the way for designers to incorporate 16- and 32-bit processing in a range of new embedded vision use cases, including industrial imaging and building controls as well as portable and automotive audio. Advanced connectivity options include USB, SDIO, CAN, ePPI, SPORT and QuadSPI.

“The ADSP-B70x Blackfin family provides a scalable design approach for commercial-, industrial- and automotive-grade equipment where systems engineers must maintain high performance while designing for environmental regulations, portability, extended battery life and shrinking power budgets,” said Andy Lanfear, product marketing manager, Analog Devices.

The processors are designed for a range of industrial and building automation applications, including intelligent lighting and occupancy sensing and industrial imaging in cameras, barcode readers and biometric sensors. The processor family’s low-power consumption, new 32-bit math and large on-chip SRAM also suits it to portable audio and automotive audio, where deterministic real-time processing is critical for high-fidelity sound.

With software IP protection a growing industry security concern, the ADSP-B70x Blackfin processor family additionally includes an onboard crypto hardware accelerator that features fast secure boot with decryption and authentication. For always-on safety critical applications, the BF70x series also provides high data integrity with parity and error-correction code (ECC)-protected memory circuitry. The processors are available in single 12 × 12 QFN or 12 × 12 BGA packages..

For audio and video system architects, Analog Devices makes available ADI software modules, including image processing applications software (such as video occupancy sensing, image processing toolbox, 2D graphics); video imaging codecs such as JPEG and H.264BP/MP; audio codecs including MP3 and WMA; and post processing software including asynchronous sample rate converters and multi-band graphic equalisers. Dolby and DTS algorithms are also available via a software license.