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. 823-3438
Mfr. Part No.DSPIC33FJ64GS610-I/PF
BrandMicrochip
MYR28.57
Each
units
40MHz - - 16bit 9 kB RISC 64 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 823-3425
Mfr. Part No.DSPIC33FJ128MC804-E/PT
BrandMicrochip
MYR25.36
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 666-8374
Mfr. Part No.dsPIC33FJ128MC804-I/ML
BrandMicrochip
MYR24.99
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN 44 3.3 V 2
RS Stock No. 835-3835
Mfr. Part No.ADSP-BF706BCPZ-4
MYR79.18
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. 622-9954
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
MYR24.04
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. 889-5941
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
MYR24.045
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. 178-4836
Mfr. Part No.DSPIC30F4011-20I/P
BrandMicrochip
MYR24.045
Each (In a Tube of 10)
units
20MIPS 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. 622-9932
Mfr. Part No.DSPIC30F4011-20I/P
BrandMicrochip
MYR24.04
Each
units
20MIPS 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. 666-9692
Mfr. Part No.dsPIC33FJ256MC710A-I/PF
BrandMicrochip
MYR34.89
Each
units
40MIPS - - 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 622-9897
Mfr. Part No.DSPIC30F2010-30I/SP
BrandMicrochip
MYR15.65
Each
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. 823-7847
Mfr. Part No.DSPIC33FJ128MC804-E/ML
BrandMicrochip
MYR27.44
Each
units
40MHz - - 16bit 16 kB Harvard 128 kB Flash - Surface Mount QFN 44 3 → 3.6 V 2
RS Stock No. 825-1032
Mfr. Part No.DSPIC33EP32MC202-I/SS
BrandMicrochip
MYR6.10
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. 709-3908
Mfr. Part No.TMS320F2812PGFA
MYR95.86
Each
units
150MHz - 150MIPS 32bit 36 kB Harvard 256 kB Flash EEPROM Fixed Point Surface Mount LQFP 176 1.9 V, 3.3 V -
RS Stock No. 923-6845
Mfr. Part No.TMS320F2812PGFA
MYR84.455
Each (In a Tray of 40)
units
150MHz - 150MIPS 32bit 36 kB Harvard 256 kB Flash EEPROM Fixed Point Surface Mount LQFP 176 1.9 V, 3.3 V -
RS Stock No. 666-8491
Mfr. Part No.dsPIC33FJ64MC804-I/PT
BrandMicrochip
MYR25.36
Each
units
40MHz - - 16bit 16 kB RISC 64 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 178-4149
Mfr. Part No.DSPIC33FJ64MC804-I/PT
BrandMicrochip
MYR18.931
Each (In a Tray of 160)
units
40MHz - - 16bit 16 kB RISC 64 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 889-5597
Mfr. Part No.dsPIC33FJ256MC710A-I/PF
BrandMicrochip
MYR30.106
Each (In a Tray of 90)
units
40MIPS dsPIC33F 40MIPS 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 178-4840
Mfr. Part No.DSPIC30F2010-30I/SP
BrandMicrochip
MYR16.16
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. 666-8463
Mfr. Part No.dsPIC33FJ64GP804-I/PT
BrandMicrochip
MYR24.74
Each
units
40MHz - - 16bit 16 kB RISC 64 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 799-0127
Mfr. Part No.DSPIC33EP512GM706-I/MR
BrandMicrochip
MYR24.88
Each
units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount QFN 64 3 → 3.6 V 4
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