Integrated ADC optimizes Blackfin for industrial and power designs - Embedded.com

Integrated ADC optimizes Blackfin for industrial and power designs

LONDON — Analog Devices Inc. has extended its range of Blackfin signal processing portfolio with the introduction of the BF50x family.

The BF50x processors deliver up to 400MHz of processing performance which will enable designers to use more sophisticated algorithms a number of system-level design objectives, including real-time processing of more data, reduced latency, consolidation of processing tasks to a single processor, and greater flexibility to optimize system interface and control capabilities.

The processors have optional integrated dual SAR 12-bit ADCs to improve the accuracy of data conversion and 4Mbyte of on-board executable flash memory. This should make them suitable for applications including power inverters, UPS, servo controls and motor controls. An ADC is integrated into the ADSP-BF506F and all ADC signals are connected out to package pins to enable maximum interconnect flexibility in mixed signal applications.

The internal ADC is a dual, 12-bit, high speed, low power, successive approximation ADC that operates from a single 2.7 V to5.25 V power supply and features throughput rates up to 2 MSPS. The device contains two ADCs, each preceded by a 3-channel multiplexer, and a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 30 MHz.

The BF50x also adds a new peripheral to the Blackfin portfolio, an ADC control modules (ACM), which provides a precise means to synchronize ADC sampling with external events. Other peripherals include two three-phase PWM units, two SPI’s, two SPORT’s, a CAN controller, a PPI, eight general purpose counters and a removable storage interface.

Blackfin processors combine a dual-MAC state-of-the-art signal processing engine, the advantages of a clean, orthogonal RISC-like microprocessor instruction set, and single-instruction, multiple-data (SIMD) multimedia capabilities into a single instruction-set architecture.

The ADSP-BF50x processors are completely code compatible with other Blackfin processors.

To support the design-in of the BF50x family ADI has released the EZ-KIT Lite (pictured below) which includes a built-in emulator to debug over USB from a host PC running the VisualDSP++ software, an evaluation suite of which is also included.

The board inlcudes a ADSP-BF506F Blackfin processor, a programmable VDDINT core power: AD5258 TWI digital potentiometer and ADP1715 low dropout linear regulator. There is 4 Mbyte (2M x 16 bits) of SPI flash memory, a 16 Mbit Numonyx M25P16, the internal ADC, a universal asynchronous receiver/transmitter (UART): ADM3202 RS-232 line driver/receiver, DB9 female connector and five LEDs: one board reset (red), three general-purpose (amber), and one power (green). There are three push buttons: one reset and two programmable flags with debounce logic adn an expansion interface to provide access to most of the processor signals.

Also available is a portable, non-intrusive, target-based debugging solution performs a range of emulation functions, including single-step and full-speed execution with predefined breakpoints, and viewing and/or altering of register and memory contents.

ADI has worked with a number of other companies to provide design services based on the BF50x and these include Boston Engineering, Advanced Engergy Conversion and Schmid Engineering.

View an exclusive interview with Anders Frederiksen, the recently appointed marketing segment manger for motor control at ADI, talking about the BF50x introduction.

Here is an exclusive interview with Anders Frederiksen, the recently appointed global industrial marketing manger for general purpose DSP at ADI.

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