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. 739-3674
Mfr. Part No.DSPIC33FJ256GP510A-I/PF
BrandMicrochip
TWD236.00
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. 666-8374
Mfr. Part No.dsPIC33FJ128MC804-I/ML
BrandMicrochip
TWD207.00
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN 44 3.3 V 2
RS Stock No. 177-1763
Mfr. Part No.DSPIC33EP128GP502-I/SP
BrandMicrochip
TWD114.50
Each (In a Pack of 2)
units
60MHz DSPIC 70MIPS 16bit 16 kB C 128 kB Flash ALU Surface Mount SPDIP 28 3.3 V 2
RS Stock No. 666-8343
Mfr. Part No.dsPIC33FJ128GP804-I/ML
BrandMicrochip
TWD194.00
Each
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40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN 44 3.3 V 2
RS Stock No. 178-4869
Mfr. Part No.DSPIC33EP512MC202-I/SO
BrandMicrochip
TWD120.30
Each (In a Tube of 27)
units
5.5MHz - - 16bit 48 kB RISC 512 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 666-8258
Mfr. Part No.dsPIC30F2011-30I/SO
BrandMicrochip
TWD108.00
Each
units
30MIPS dsPIC30F 30MIPS 16bit 1.024 kB RISC 12 kB Flash - Surface Mount SOIC 18 2.5 → 5.5 V 1
RS Stock No. 869-6113
Mfr. Part No.DSPIC33EV64GM106-I/PT
BrandMicrochip
TWD124.00
Each (In a Pack of 2)
units
70MHz - 70MIPS 16bit 8 kB C 64 kB Flash - Surface Mount TQFP 64 4.5 → 5.5 V 2
RS Stock No. 666-8321
Mfr. Part No.dsPIC33FJ128GP202-I/SO
BrandMicrochip
TWD165.00
Each
units
40MHz - - 16bit 8 kB RISC 128 kB Flash - Surface Mount SOIC W 28 3.3 V 2
RS Stock No. 877-9212
Mfr. Part No.ADSP-BF561SKBZ600
TWD1,519.00
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units
600MHz Blackfin 600MIPS 16bit 32 kB RISC 328 kB Flash ALU Surface Mount PBGA 297 1.35 V, 3.3 V 1
RS Stock No. 876-6749
Mfr. Part No.DSPIC33FJ256GP506-I/PT
BrandMicrochip
TWD163.80
Each (In a Tray of 160)
units
40MHz - - 16bit 16 kB Modified Harvard 256 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 177-1587
Mfr. Part No.DSPIC33EP32MC202-I/MM
BrandMicrochip
TWD62.50
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. 666-8309
Mfr. Part No.dsPIC30F4013-30I/PT
BrandMicrochip
TWD189.00
Each
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30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Surface Mount TQFP 44 2.5 → 5.5 V 2
RS Stock No. 183-2291
Mfr. Part No.ADSP-BF523BBCZ-5A
TWD858.60
Each (In a Tray of 90)
units
533MHz ADSP-BF523 - 32bit 32 kB RISC 132 kB SRAM ALU Surface Mount BGA 208 3.3 V 2
RS Stock No. 178-4148
Mfr. Part No.DSPIC33FJ32GP204-I/PT
BrandMicrochip
TWD106.10
Each (In a Tray of 160)
units
40MHz - - 16bit 2 kB RISC 32 kB Flash - Surface Mount TQFP 44 3.3 V 1
RS Stock No. 399-785
Mfr. Part No.DSPIC33FJ256MC710-I/PT
BrandMicrochip
TWD243.00
Each
units
40MIPS - - 16bit 32 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 177-1998
Mfr. Part No.DSPIC33EP32MC202-I/MM
BrandMicrochip
TWD73.60
Each (In a Pack of 5)
units
60MHz DSPIC 70MIPS 16bit 4 kB C 32 kB Flash ALU Surface Mount QFN 28 3.3 V 2
RS Stock No. 819-5345
Mfr. Part No.DSPIC30F4013-20E/P
BrandMicrochip
TWD197.00
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. 802-3963
Mfr. Part No.ADSP-21479KBCZ-2A
TWD649.00
Each
units
266MHz SHARC - 32bit 5 Mbit Super Harvard 4 Mbit ROM Floating Point Surface Mount CSP BGA 196 3.3 V 1
RS Stock No. 160-2906
Mfr. Part No.ADSP-BF512KBCZ-4
TWD439.00
Each (In a Tray of 189)
units
400MHz Blackfin 400MIPS 16bit 32 kB RISC 116 kB OTP ALU Surface Mount CSP BGA 168 1.8 V 2
RS Stock No. 162-7547
Mfr. Part No.TMS320F2808PZS
TWD616.60
Each (In a Tube of 90)
units
100MHz - 100MIPS 32bit 36 kB Harvard 128 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -