Usually, DSPs have devoted integrated circuits (ICs), but their functionality can also be comprehended through field programmable gate array (FGPA) chips. Digital Signal Processors are accessible in multiple DMA channels and heterogeneity of I/O ports and interfaces.
A feature-wise segregation
Many devices also have an external memory interface that regulates the amount of memory a chip can handle. Parallel interface incorporates:
While Serial interface incorporates:
Selecting DSPs requires an investigation of performance requirements. DSPs function with a variety of supply voltages and include data buses ranging from 8-bit to 256-bit devices. DSPs also vary in terms of clock speed, which is usually measured in megahertz (MHz) and gigahertz (GHz). Integrated on-chip phase-locked loops (PLLs) with clock frequency blending capabilities are used to manufacture high- speed internal clocks for examining data in DSP applications.
Measurements of DSP handling power include MIPS and MMACS. In the case of floating-point tools, there is an additional measurement called million floating-point operations per second (MFLOPS). For every DSP, operating current, operating temperature, and power dissipation are pivotal specifications.
Pros and Cons of a DSP
DSP has a higher level of accuracy and is easier to reconfigure than its analog counterpart. There are various kinds of interfaces available that help in interfacing other ICs with DSP. It is a cost-efficient and easily transportable tool that can be reproduced in bulk if required.
On the downside, the usage of DSP means a mandatory extension into the use of ADC and DAC as well. It processes the signal at a high rate, hence dissipates a high amount of power. Higher bandwidth and synchronized communication system are required for its working.
Categories Simillar to Digital Signal Processors includes NAND Logic Gates, Schottky Diodes and Logic Gates