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. 162-8388
Mfr. Part No.TMS320C6713BGDP300
MYR191.94
Each (In a Tray of 40)
units
300MHz - 2400MIPS 32bit 64 kB DSP 264 kB EPROM Floating Point Surface Mount BGA 272 3.3 V 0
RS Stock No. 877-9155
Mfr. Part No.ADSP-21489KSWZ-5B
MYR100.00
Each
units
450MHz SHARC 450MIPS 32/64bit 5 MB Super Harvard 5 MB RAM MAC Surface Mount LQFP 176 1.1 V 1
RS Stock No. 666-8343
Mfr. Part No.dsPIC33FJ128GP804-I/ML
BrandMicrochip
MYR27.38
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN 44 3.3 V 2
RS Stock No. 177-1580
Mfr. Part No.DSPIC33EP128GP502-I/SP
BrandMicrochip
MYR13.06
Each (In a Tube of 15)
units
60MHz DSPIC 70MIPS 16bit 16 kB C 128 kB Flash ALU Surface Mount SPDIP 28 3.3 V 2
RS Stock No. 889-5566
Mfr. Part No.DSPIC33FJ256GP710-I/PF
BrandMicrochip
MYR30.14
Each (In a Tray of 90)
units
40MIPS - - 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 666-9661
Mfr. Part No.dsPIC33FJ128MC708A-I/PT
BrandMicrochip
MYR33.83
Each
units
40MIPS - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 80 3 → 3.6 V 2
RS Stock No. 399-779
Mfr. Part No.DSPIC33FJ64GP206-I/PT
BrandMicrochip
MYR19.59
Each
units
40MIPS dsPIC33F 40MIPS 16bit 8 kB RISC 64 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 177-3515
Mfr. Part No.DSPIC33FJ16GS504-E/PT
BrandMicrochip
MYR23.146
Each (In a Tray of 160)
units
40MHz DSPIC33FJ16GS504 40MIPS 16bit 2 kB Harvard 16 kB Flash ALU Surface Mount TQFP 44 - 1
RS Stock No. 177-3517
Mfr. Part No.DSPIC33FJ256MC710A-H/PF
BrandMicrochip
MYR41.97
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. 178-4154
Mfr. Part No.DSPIC33FJ64GP706A-I/PT
BrandMicrochip
MYR42.97
Each (In a Tray of 160)
units
40MIPS - - 16bit 16 kB RISC 64 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 158-1842
Mfr. Part No.ADSP-BF537BBCZ-5B
MYR141.663
Each (In a Tray of 90)
units
500MHz Blackfin 500MIPS 16bit 32 kB Modified Harvard - ROM, SRAM Fixed Point Surface Mount CSP BGA 208 1.2 V, 2.5 V, 3.3 V -
RS Stock No. 158-0582
Mfr. Part No.ADSP-2185MKSTZ-300
MYR122.855
Each (In a Tray of 90)
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. 177-1578
Mfr. Part No.DSPIC30F4013-20I/ML
BrandMicrochip
MYR21.515
Each (In a Tube of 45)
units
40MHz DSPIC 20MIPS 16bit 2.048 kB - 48 kB Flash ALU Surface Mount QFN 44 5.5 V 2
RS Stock No. 912-2837
Mfr. Part No.DSPIC33FJ128GP804-I/ML
BrandMicrochip
MYR21.51
Each (In a Tube of 45)
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN 44 3.3 V 2
RS Stock No. 134-5631
Mfr. Part No.dsPIC33EP128GS805-I/PT
BrandMicrochip
MYR20.99
Each
units
60MHz dsPIC33EP 70MIPS 16bit 8 kB DSP 128 kB Flash MAC Surface Mount TQFP 48 3 → 3.6 V 2
RS Stock No. 893-8329
Mfr. Part No.DSPIC33EP64GS506-I/PT
BrandMicrochip
MYR23.33
Each
units
1MHz - 70MIPS 16bit 8 kB Code Efficient, MCU, Modified Harvard 64 kB EEPROM, SRAM MAC Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 823-0868
Mfr. Part No.DSPIC33FJ128GP804-E/PT
BrandMicrochip
MYR29.53
Each
units
40MHz - - 16bit 16 kB Harvard 128 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 177-1745
Mfr. Part No.DSPIC33EP32MC202-I/SO
BrandMicrochip
MYR8.20
Each (In a Pack of 5)
units
60MHz DSPIC 70MIPS 16bit 4 kB C 32 kB Flash ALU Surface Mount SOIC 28 3.3 V 2
RS Stock No. 889-5279
Mfr. Part No.dsPIC33FJ128GP706A-I/PT
BrandMicrochip
MYR23.965
Each (In a Tray of 160)
units
40MIPS - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 177-3858
Mfr. Part No.DSPIC33FJ256MC710A-H/PF
BrandMicrochip
MYR45.77
Each
units
40MHz DSPIC33FJ256MC710A 20MIPS 16bit 30 kB Harvard 256 kB Flash ALU Surface Mount TQFP 100 - 2
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