A digital signal processor is a microprocessor dedicated to digital signal processing. It is usually made of MOSFET and is widely used in telecommunications, audio processing, digital image processing, radar, sonar and other fields, as well as in consumer electronics.
Characteristics of Digital Signal Processors:
Separate program memory and data memory (Harvard structure).
Special instruction set for Single Instruction Multiple Data (SIMD) operations.
Concurrent processing is possible, but multitasking is not supported.
Can operate as a direct memory access (DMA) device when used in a hosting environment.
Data is obtained from an analog-to-digital converter (ADC), and the final output is data converted into an analog signal by a digital-to-analog converter (DAC).
Common Brands:
Freescale Semiconductor, Inc. (NXP Semiconductors)
Texas Instruments Incorporated (TI)
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