Digital Signal Processors

Digital signal processors (DSPs) take signals like voice, audio or video and then manipulate them. They capture the signals as digital information, process it and then feed the information back for use. They do this either digitally or in an analogue format by going through an Audio Digital-to-Analogue Converter (DAC). All of this happens at very high speeds.


What are digital signal processors used for?

Digital signal processors are used for processing audio, video and graphics. They can make sound clearer, data faster and images sharper. For example, when used in Hi-Fi equipment, DSPs can create the illusion of three dimensional sound. 


Because they're programmable, DSPs can be used in a wide variety of applications, from mobile phones to computers and toys. They're compact in size and don't use a lot of power. 


Choosing the right digital signal processor

When you're looking for the right DSP there are various features to consider: 

  • Frequency – the number of data points per second, which you can think of as the speed. 
  • RAM size – usually the greater the size, the better the performance. 
  • Program memory – to customise a DSP for a specific purpose.

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Description Price Maximum Frequency Series Device Million Instructions per Second Data Bus Width RAM Size Instruction Set Architecture Program Memory Size Program Memory Type Numeric and Arithmetic Format Mounting Type Package Type Pin Count Typical Operating Supply Voltage Number of UART Channels
RS stock no. 823-0868
Mfr. Part No.DSPIC33FJ128GP804-E/PT
BrandMicrochip
R 89.63
Each
units
40MHz - - 16bit 16 kB Harvard 128 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS stock no. 889-5941
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
R 79.147
Each (In a Tube of 10)
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Through Hole PDIP 40 2.5 → 5.5 V 2
RS stock no. 622-9954
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
R 109.62
Each
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Through Hole PDIP 40 2.5 → 5.5 V 2
RS stock no. 770-7739
Mfr. Part No.dsPIC33EP128MC502-I/SO
BrandMicrochip
R 63.23
Each
units
70MHz - - 16bit 16 kB Modified Harvard 128 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS stock no. 178-4867
Mfr. Part No.DSPIC33EP128MC502-I/SO
BrandMicrochip
R 39.357
Each (In a Tube of 27)
units
70MHz - - 16bit 16 kB Modified Harvard 128 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS stock no. 178-4152
Mfr. Part No.DSPIC33FJ16GS504-I/PT
BrandMicrochip
R 51.477
Each (In a Tray of 160)
units
40MIPS - - 16bit 2 kB RISC 16 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 1
RS stock no. 666-9674
Mfr. Part No.dsPIC33FJ16GS504-I/PT
BrandMicrochip
R 54.19
Each
units
40MIPS - - 16bit 2 kB RISC 16 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 1
RS stock no. 178-5215
Mfr. Part No.DSPIC33EV256GM106-I/PT
BrandMicrochip
R 51.392
Each (In a Tray of 160)
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount TQFP 64 4.5 → 5.5 V 2
RS stock no. 861-0551
Mfr. Part No.dsPIC33EV256GM106-I/PT
BrandMicrochip
R 87.36
Each
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount TQFP 64 4.5 → 5.5 V 2
RS stock no. 739-3674
Mfr. Part No.DSPIC33FJ256GP510A-I/PF
BrandMicrochip
R 103.46
Each
units
40MHz - 40MIPS 16bit 16 kB Harvard 256 kB Flash Fixed Point, Floating Point Surface Mount TQFP 100 3.3 V 2
RS stock no. 178-5012
Mfr. Part No.DSPIC33FJ256GP510A-I/PF
BrandMicrochip
R 93.769
Each (In a Tray of 90)
units
40MHz - 40MIPS 16bit 16 kB Harvard 256 kB Flash Fixed Point, Floating Point Surface Mount TQFP 100 3.3 V 2
RS stock no. 819-5345
Mfr. Part No.DSPIC30F4013-20E/P
BrandMicrochip
R 85.215
Each (In a Tube of 10)
units
25MHz - - 16bit 2.048 kB RISC 48 kB Flash - Through Hole PDIP 40 2.5 → 5.5 V 2
RS stock no. 889-5550
Mfr. Part No.DSPIC30F4013-30I/P
BrandMicrochip
R 77.119
Each (In a Tube of 10)
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Through Hole PDIP 40 2.5 → 5.5 V 2
RS stock no. 622-9998
Mfr. Part No.DSPIC30F4013-30I/P
BrandMicrochip
R 106.78
Each
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Through Hole PDIP 40 2.5 → 5.5 V 2
RS stock no. 823-7770
Mfr. Part No.DSPIC30F6014-30I/PF
BrandMicrochip
R 256.64
Each
units
30MHz - - 16bit 8.192 kB RISC 144 kB Flash - Surface Mount TQFP 80 2.5 → 5.5 V 2
RS stock no. 178-4849
Mfr. Part No.DSPIC33EV256GM102-I/SP
BrandMicrochip
R 52.537
Each (In a Tube of 15)
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Through Hole PDIP 28 4.5 → 5.5 V 2
RS stock no. 622-9926
Mfr. Part No.DSPIC30F2011-30I/P
BrandMicrochip
R 68.08
Each
units
30MIPS dsPIC30F 30MIPS 16bit 1.024 kB RISC 12 kB Flash - Through Hole PDIP 18 2.5 → 5.5 V 1
RS stock no. 861-0545
Mfr. Part No.dsPIC33EV256GM102-I/SP
BrandMicrochip
R 82.38
Each
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Through Hole PDIP 28 4.5 → 5.5 V 2
RS stock no. 825-1032
Mfr. Part No.DSPIC33EP32MC202-I/SS
BrandMicrochip
R 28.108
Each (In a Pack of 5)
units
140MHz - - 16bit 4 kB DSP 32 kB Flash - Surface Mount SSOP 28 3 → 3.6 V 2
RS stock no. 810-3914
Mfr. Part No.DSPIC33EP512GP502-I/SP
BrandMicrochip
R 88.72
Each
units
5.5MHz - - 16bit 48 kB RISC 512 kB Flash - Through Hole PDIP 28 3 → 3.6 V 2