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. 162-7546
Mfr. Part No.TMS320F2806PZA
TWD474.90
Each (In a Tray of 90)
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100MHz - 100MIPS 32bit 20 kB Harvard 64 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 889-5941
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
TWD191.00
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. 660-6645
Mfr. Part No.TMS320F2812ZHHA
TWD804.00
Each
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150MHz - 150MIPS 32bit 36 kB Harvard 256 kB Flash EEPROM Fixed Point Surface Mount BGA MICROSTAR 179 1.9 V, 3.3 V -
RS Stock No. 102-5577
Mfr. Part No.TMS320F2808PZA
TWD591.30
Each (In a Tray of 90)
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100MHz - 100MIPS 32bit 36 kB Harvard 128 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 178-4875
Mfr. Part No.DSPIC33EP32GS202-I/SO
BrandMicrochip
TWD105.10
Each (In a Tube of 27)
units
120MHz - - 16bit 2 kB Harvard 32 kB Flash Fixed Point, Floating Point, MAC Surface Mount SOIC 28 3.3 V 1
RS Stock No. 666-8292
Mfr. Part No.dsPIC30F4011-30I/PT
BrandMicrochip
TWD190.00
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. 349-2222
Mfr. Part No.TMS320VC5402PGE100
TWD366.00
Each
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100MHz - 100MIPS 16bit 32 kB Modified Harvard 8 kB DARAM, ROM Fixed Point Surface Mount LQFP 144 1.8 V, 3.3 V -
RS Stock No. 178-4859
Mfr. Part No.DSPIC33FJ128MC802-I/SO
BrandMicrochip
TWD168.10
Each (In a Tube of 27)
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40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount SOIC W 28 3.3 V 2
RS Stock No. 869-6621
Mfr. Part No.DSPIC33FJ32MC202-I/SP
BrandMicrochip
TWD135.60
Each (In a Tube of 15)
units
40MIPS dsPIC33F 40MIPS 16bit 8 kB RISC 64 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 889-5187
Mfr. Part No.dsPIC30F4011-30I/PT
BrandMicrochip
TWD156.50
Each (In a Tray of 160)
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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. 912-6968
Mfr. Part No.DSPIC30F3012-30I/SO
BrandMicrochip
TWD112.00
Each (In a Tube of 42)
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30MIPS - - 16bit 2.048 kB RISC 1.024 kB, 24 kB Flash - Surface Mount SOIC 18 2.5 → 5.5 V 1
RS Stock No. 877-9221
Mfr. Part No.ADSP-BF592KCPZ
TWD298.00
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400MHz Blackfin 400MIPS - 32 kB RISC - - ALU Surface Mount LFCSP 64 1.8 V, 2.5 V, 3.3 V 1
RS Stock No. 622-9910
Mfr. Part No.DSPIC30F3012-30I/SO
BrandMicrochip
TWD126.00
Each
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30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 24 kB Flash - Surface Mount SOIC 18 2.5 → 5.5 V 1
RS Stock No. 399-757
Mfr. Part No.DSPIC33FJ32MC202-I/SP
BrandMicrochip
TWD136.00
Each
units
40MIPS - - 16bit 2 kB RISC 32 kB Flash - Through Hole SPDIP 28 3 to 3.6 V 1
RS Stock No. 619-5659
Mfr. Part No.TMS320F2808PZA
TWD678.00
Each
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100MHz - 100MIPS 32bit 36 kB Harvard 128 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 709-3933
Mfr. Part No.TMS320F2806PZA
TWD534.00
Each
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100MHz - 100MIPS 32bit 20 kB Harvard 64 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 160-2920
Mfr. Part No.ADSP-BF592KCPZ
TWD215.90
Each (In a Tray of 260)
units
400MHz Blackfin 400MIPS - 32 kB RISC - - ALU Surface Mount LFCSP 64 1.8 V, 2.5 V, 3.3 V 1
RS Stock No. 912-5303
Mfr. Part No.DSPIC33EP32GS202-I/SO
BrandMicrochip
TWD115.00
Each (In a Pack of 2)
units
120MHz - - 16bit 2 kB Harvard 32 kB Flash Fixed Point, Floating Point, MAC Surface Mount SOIC 28 3.3 V 1
RS Stock No. 622-9954
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
TWD199.00
Each
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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. 923-6854
Mfr. Part No.TMS320F2811PBKA
TWD712.20
Each (In a Tube of 90)
units
150MHz - 150MIPS 32bit 36 kB Harvard 256 kB Flash EEPROM Fixed Point Surface Mount LQFP 128 1.9 V, 3.3 V -