Digital signal processors are a type of microprocessor. As the name suggests, they are specifically for the needs of processing digital signals. They are able to process data in real time, which is an essential factor when it comes to working with devices and applications that cannot have any delays. The processors are going to take a digital signal and then process it through mathematical computations, which will actually be able to improve the signal. You will find that this can improve many different types of signals based on the type of processor and application. They could improve the speed of data transference, and provide clearer images and sound, and much more. The processed signals can then go onto a display, or it is possible to convert them into another type of signal.
History of Digital Signal Processors
The first digital signal processor that we would recognize as such today was released in 1978 from Texas Instruments, one of the great innovative companies of the world. The first signal processor was actually inside of a Speak & Spell, a children’s toy with which most people of a certain age are very familiar. It was even in the film ET a couple of years later. While kids simply liked the toy, it also happened to be a remarkable achievement, and those signal processors started to find their way into many other devices.
In 1980, we saw the release of the first stand alone digital processors, and a few years later, they brought out the second generation of those processors. These were faster, more powerful, and more reliable. Over the years, they’ve come out with new generations that are better still. The modern DSPs are very high quality, and they can range in cost, size, and power. You can find them in quite a few different types of equipment and devices today, including MP3 players.
Whether you are looking for a way to improve the signal in your own personal audio devices, or you are in the business of selling devices that need to have the clearest possible signals, the right DSPs can make a real difference.
Who Makes Digital Signal Processors?
You will find quite a few different types of digital signal processors on the market today from a host of different manufacturers. The following are some of the top manufacturers who are making these processors.
- Analog Devices – Analog Devices happens to be one of the leaders in the world when it comes to DSPs, and they have a number of different processors available that will be able to work with many different applications.
- EXAR – EXAR Corporation is in the business of making some of the best signal integrated circuits and DSPs on the market today.
- Microchip – Another top company in the field is Microchip. They create high quality flash IP solutions, memory, DSPs, and more.
- New Japan Radio – The company offers a number of different types of items including DSPs.
- Texas Instruments – Texas Instruments was the company that created the first digital signal processor, and they continue to be a top name in the field when it comes to innovation and creating the best quality digital signal processors, as well as other items.
The preceding are some of the top manufacturers in the world when it comes to DSPs, and you will be able to find many different options that might work for your needs. These are only some of the makers though, so you may find others that will work for your devices.
What is the Maximum Frequency of Digital Signal Processors?
The frequency is going to vary with the digital signal processors that are on the market right now. The maximum frequency is going to be the highest frequency at which it is going to be able to operate. They can usually go from 100 Hz all the way to 1000 MHz.
What Does Device Million Instructions per Second Define?
The Device Million Instructions per Second is going to show just how many millions of instructions the device is going to be able to handle, and most of the time manufacturers are going to list this number. This is important when you are looking at and trying to compare the DSPs that you are considering.
What is the Data Bus Width of Digital Signal Processors?
With the variety of the processors on the market, you will find many options that have different Data Bus Widths. The most common sizes are going to range from 8 bytes to 480 MB.
What is the Ram Size of Digital Signal Processors?
You will find quite a few different processors, and they have different sizes of ram. The most common sizes are 125 MB, 576 KB, 64 KB, and 24 KB. However, those are not the only options available. Some of the other common sizes that are available include processors that have quite a bit more ram – up to a GB in fact. It is also possible to find flash memory that is able to go from the very small 8-byte option all the way to 1 GB.
What is the Instruction Set Architecture of Digital Signal Processors?
The DSP instruction sets can vary based on the use of the device and the type of processors. Some of the processors will have memory architecture, SIMD operations, loop controls and more. It depends on the processor and its use.
What is the Program Memory Size of Digital Signal Processors?
The program memory is going to store all of the programs that the digital signal processing needs to use to process the data that goes through the device.
What Is the Difference Between Numeric and Arithmetic Formats of Digital Signal Processors?
With the numeric formats, the processor is going to process things in a linear and numeric fashion. With the arithmetic formats, it actually utilizes complex calculations to improve or amplify the signal.
What Mounting Types Exist for Digital Signal Processors?
When it comes to digital signal processors, you will find that most of the ones that are out there are going to be surface mounted processors. However, it is also possible to find some embedded DPS.
What Package Types Exist for Digital Signal Processors?
You are going to find a number of different types of package types for DSPs including thin plastic packages, quad flat packs, and pin grid arrays. They can cost different amounts depending on the type that you choose.
What Pin Count Do They Come in?
Again, because there are so many different types of DSPs and they are used in so many different things, you can find low pin count DSPs that often have a lower cost, and you can find larger pin counts for other applications.
What is the Typical Operating Supply Voltage of Digital Signal Processors?
Most of the time, you are going to be able to find that the DSPs that have an operating supply voltage of 2.5 volts. However, since you have many options, it is also possible to find those operating at 1.8 volts, 3.3 volts, and even up to 5 volts. The nature of DSPs makes it possible to have high quality low voltage options.
What are UART Channels in Digital Signal Processors?
The UARTs are able to provide data error detection in real time, which can help to make the DSP more efficient.
What are USART Channels in Digital Signal Processors?
The USART Channels are going to be able to help with the reading and writing of the digital signal processors. It can indicate the data that is in the buffer, and it can make things faster in the computer or device.
What are ADC Channels in Digital Signal Processors?
The ADC Channels are going to be able to improve and extend the sampling frequency in certain DSPs, and this can help to make them faster and more efficient. It can help to improve the speed of the conversions.
What is the ADC Resolution of Digital Signal Processors?
The ADC resolution is going to refer to the clarity of the signal. The higher the resolution the better in some cases, but the highest level of ADC resolution might not be important in all cases. It depends on the use of the DSP.
What is the Maximum Operating Temperature of Digital Signal Processors?
This is going to be the highest level at which the digital signal processor is going to be able to operate. Because they are in different types of devices, the max temperature can vary based on the DSP.
What is the Minimum Operating Temperature of Digital Signal Processors?
Similar to the max operating temperature, this is the minimum operating temperature at which the DSP will operate. Again, different DSPs used in different applications can have different temperature thresholds.
What Does Number of ADC Units Define for Digital Signal Processors?
When you have more ADC units in the DSP, it is going to have the potential to eliminate, or at least reduce some of the noise.
What does the Number of Ethernet Channels define in Digital Signal Processors?
The number of Ethernet Channels in a DSP can assist with the communications. The technology of the DSPs can help to reduce issues with noise and echo, as well as crosstalk issues.
What are CAN, I2C, LIN, and PCS Channels?
All of these are different types of digital communication, and many DSPs are going to utilize these. When they are a part of a DSP, they are going to be able to improve the digital signal of those communication protocols.
What are PWM UNITS in Digital Signal Processors?
The PWM, or pulse width modification units in a digital signal processor is going to be able to transmit information via a communications channel. Another term for this is pulse duration modulation.
What are SPI CHANNELS in Digital Signal Processors?
SPI, or Serial to Peripheral Interface channels are a communications protocol in a variety of devices and many DSPs.
How Many Timers are in Digital Signal Processors?
You will find different timers with different DSPs, and the amount and type can vary. Typically, you are going to find 16-bit and 32-bit timers.
What are PWM Channels in Digital Signal Processors?
These are the pulse width modification channels in the DSP, and they are able to help create repetitive digital waveforms that are pulsing with precise timing. They can cycle on and off with the pulses.
What is PWM Resolution in Digital Signal Processors?
The PWM resolution can vary based on the DSP. It refers to the quality of the signal, and one of the reasons that people are using the high quality DSPs, which can process and improve the signal, is to improve the resolution.
What is the Time Resolution of Digital Signal Processors?
Time resolution is very important, and the higher the resolution the lower the noise in the most cases. This is vital when it comes to increasing the quality of the signals.
What are Timers in Digital Signal Processors?
Timers are going to be able to do a number of things within the DSP. They are going to be able to help time various events that have to go through the DSP, and they can even count events. In addition, they could generate pulses, and send out synchronization events.
What are USB Channels in Digital Signal Processors?
These are important in audio. The USB channels that route signals through the DSP can ensure that they have the highest possible signal quality.
Those who are in need of DSPs for their own devices will have quite a bit of research to do when it comes to making sure that they are getting the right type and the best quality DSP for their needs. Whether they are working with audio, data, or images, the right DSP is going to be very beneficial. You have many options and many sellers, particularly on the web, which will be able to help you find the perfect choice for your device’s needs.