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. 177-1587
Mfr. Part No.DSPIC33EP32MC202-I/MM
BrandMicrochip
kr 13,167
Each (In a Tube of 61)
Units
60MHz DSPIC 70MIPS 16bit 4 kB C 32 kB Flash ALU Surface Mount QFN 28 3.3 V 2
RS Stock No. 666-9649
Mfr. Part No.dsPIC33FJ128GP706A-I/PT
BrandMicrochip
kr 54,93
Each
Units
40MIPS - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 666-8343
Mfr. Part No.dsPIC33FJ128GP804-I/ML
BrandMicrochip
kr 50,55
Each
Units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN 44 3.3 V 2
RS Stock No. 177-3764
Mfr. Part No.DSPIC33EP256GP504-I/PT
BrandMicrochip
kr 33,10
Each (In a Pack of 2)
Units
70MHz DSPIC33EP256GP504 70MIPS 16bit 32 kB Harvard 256 kB Flash ALU Surface Mount TQFP 44 - 2
RS Stock No. 178-4909
Mfr. Part No.DSPIC33EV256GM104-I/ML
BrandMicrochip
kr 25,215
Each (In a Tube of 45)
Units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount QFN 44 4.5 → 5.5 V 2
RS Stock No. 178-4844
Mfr. Part No.DSPIC33FJ16GS502-I/SP
BrandMicrochip
kr 30,339
Each (In a Tube of 15)
Units
50MIPS - - 16bit 2 kB RISC 16 kB Flash - Surface Mount SPDIP 28 3 → 3.6 V 1
RS Stock No. 178-4893
Mfr. Part No.DSPIC33EV256GM106-I/MR
BrandMicrochip
kr 27,018
Each (In a Tube of 40)
Units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount QFN 64 4.5 → 5.5 V 2
RS Stock No. 877-9164
Mfr. Part No.ADSP-2185BSTZ-133
kr 506,78
Each
Units
33.3MHz Blackfin 33.3MIPS 16bit 80 kB DSP 16 Kwords RAM Floating Point Surface Mount TQFP 100 4.5 → 5.5 V 0
RS Stock No. 666-8362
Mfr. Part No.dsPIC33FJ128MC802-E/SP
BrandMicrochip
kr 54,14
Each
Units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
RS Stock No. 861-0545
Mfr. Part No.dsPIC33EV256GM102-I/SP
BrandMicrochip
kr 34,00
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. 912-5319
Mfr. Part No.DSPIC33EP16GS202-I/MM
BrandMicrochip
kr 17,28
Each (In a Pack of 2)
Units
120MHz - - 16bit 2 kB Harvard 16 kB Flash Fixed Point, Floating Point, MAC Surface Mount QFN S 28 3.3 V 1
RS Stock No. 399-757
Mfr. Part No.DSPIC33FJ32MC202-I/SP
BrandMicrochip
kr 34,70
Each
Units
40MIPS - - 16bit 2 kB RISC 32 kB Flash - Through Hole SPDIP 28 3 to 3.6 V 1
RS Stock No. 134-5585
Mfr. Part No.dsPIC33EP128GS804-I/ML
BrandMicrochip
kr 32,77
Each (In a Tube of 45)
Units
60MHz dsPIC33EP 70MIPS 16bit 8 kB DSP 128 kB Flash MAC Surface Mount QFN 44 3 → 3.6 V 2
RS Stock No. 825-1023
Mfr. Part No.DSPIC33EP128GM604-I/PT
BrandMicrochip
kr 48,555
Each (In a Pack of 2)
Units
140MHz - - 16bit 16 kB DSP 128 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 4
RS Stock No. 178-4840
Mfr. Part No.DSPIC30F2010-30I/SP
BrandMicrochip
kr 35,839
Each (In a Tube of 15)
Units
30MIPS dsPIC30F 30MIPS 16bit 512 B RISC 1.024 kB, 12 kB Flash - Through Hole SPDIP 28 2.5 → 5.5 V 1
RS Stock No. 770-7739
Mfr. Part No.dsPIC33EP128MC502-I/SO
BrandMicrochip
kr 18,87
Each
Units
70MHz - - 16bit 16 kB Modified Harvard 128 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 177-3517
Mfr. Part No.DSPIC33FJ256MC710A-H/PF
BrandMicrochip
kr 89,649
Each (In a Tray of 90)
Units
40MHz DSPIC33FJ256MC710A 20MIPS 16bit 30 kB Harvard 256 kB Flash ALU Surface Mount TQFP 100 - 2
RS Stock No. 835-3835
Mfr. Part No.ADSP-BF706BCPZ-4
kr 176,67
Each
Units
400MHz Blackfin - 16/32bit 1.024 MB Modified Harvard 512 kB ROM ALU Surface Mount LFCSP 88 1.8 V, 3.3 V 2
RS Stock No. 697-7798
Mfr. Part No.ADSP-2185MKSTZ-300
kr 252,24
Each
Units
75MHz ADSP-21xx 75MIPS 16bit 80 kB Enhanced Harvard - RAM Fixed Point Surface Mount LQFP 100 2.5 V, 3.3 V -
RS Stock No. 889-5584
Mfr. Part No.DSPIC30F4012-30I/SP
BrandMicrochip
kr 51,412
Each (In a Tube of 15)
Units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Through Hole SPDIP 28 2.5 → 5.5 V 1
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