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. 912-5307
Mfr. Part No.DSPIC33EP16GS202-I/SO
BrandMicrochip
PHP142.14
Each (In a Pack of 2)
units
120MHz - - 16bit 2 kB Harvard 16 kB Flash Fixed Point, Floating Point, MAC Surface Mount SOIC 28 3.3 V 1
RS Stock No. 666-8365
Mfr. Part No.dsPIC33FJ128MC802-I/MM
BrandMicrochip
PHP283.26
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN S 28 3.3 V 2
RS Stock No. 921-2785
Mfr. Part No.TMS320C5535AZHH05
PHP250.95
Each (In a Tube of 160)
units
50MHz - 50MIPS 32bit 320 kB DSP 128 kB ROM Fixed Point Surface Mount BGA 144 1.05 V 1
RS Stock No. 666-8318
Mfr. Part No.dsPIC30F6012A-30I/PF
BrandMicrochip
PHP640.22
Each
units
30MIPS dsPIC30F 30MIPS 16bit 8.192 kB RISC 4.096 kB, 144 kB Flash - Surface Mount TQFP 64 2.5 → 5.5 V 2
RS Stock No. 759-0465
Mfr. Part No.ADSP-21261SKSTZ150
PHP803.78
Each
units
150MHz SHARC - 32 bit, 40 bit 1 (SRAM) Mbit Super Harvard 3 Mbit ROM Fixed Point, Floating Point Surface Mount LQFP 144 1.14 → 1.26 V, 3.13 → 3.47 V 4
RS Stock No. 178-4876
Mfr. Part No.DSPIC33EP16GS202-I/SO
BrandMicrochip
PHP130.075
Each (In a Tube of 27)
units
120MHz - - 16bit 2 kB Harvard 16 kB Flash Fixed Point, Floating Point, MAC Surface Mount SOIC 28 3.3 V 1
RS Stock No. 888-4865
Mfr. Part No.DSPIC33EP512GM604-I/PT
BrandMicrochip
PHP273.958
Each (In a Tray of 160)
units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 4
RS Stock No. 798-4463
Mfr. Part No.TMS320C5535AZHH05
PHP341.25
Each
units
50MHz - 50MIPS 32bit 320 kB DSP 128 kB ROM Fixed Point Surface Mount BGA 144 1.05 V 1
RS Stock No. 879-3264
Mfr. Part No.DSPIC33FJ64GS606-50I/PT
BrandMicrochip
PHP308.83
Each
units
50MHz - 50MIPS 16bit 9 kB Code Efficient 64 kB Flash Fixed Point, Floating Point Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 799-0092
Mfr. Part No.DSPIC33EP512GM304-I/PT
BrandMicrochip
PHP294.51
Each
units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 4
RS Stock No. 861-0554
Mfr. Part No.dsPIC33EV256GM104-I/ML
BrandMicrochip
PHP208.43
Each
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount QFN 44 4.5 → 5.5 V 2
RS Stock No. 666-9652
Mfr. Part No.dsPIC33FJ128MC706A-I/PT
BrandMicrochip
PHP364.86
Each
units
40MIPS - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 102-5577
Mfr. Part No.TMS320F2808PZA
PHP934.50
Each (In a Tray of 90)
units
100MHz - 100MIPS 32bit 36 kB Harvard 128 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 178-4149
Mfr. Part No.DSPIC33FJ64MC804-I/PT
BrandMicrochip
PHP494.184
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. 666-8368
Mfr. Part No.dsPIC33FJ128MC802-I/SO
BrandMicrochip
PHP328.91
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount SOIC W 28 3.3 V 2
RS Stock No. 861-0545
Mfr. Part No.dsPIC33EV256GM102-I/SP
BrandMicrochip
PHP197.87
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. 178-4862
Mfr. Part No.DSPIC33FJ16GS502-I/SO
BrandMicrochip
PHP201.698
Each (In a Tube of 27)
units
50MIPS - - 16bit 2 kB RISC 16 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 1
RS Stock No. 134-5626
Mfr. Part No.dsPIC33EP128GS804-I/PT
BrandMicrochip
PHP318.96
Each
units
60MHz dsPIC33EP 70MIPS 16bit 8 kB DSP 128 kB Flash MAC Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 160-2902
Mfr. Part No.ADSP-2185BSTZ-133
PHP3,159.351
Each (In a Tray of 90)
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. 122-9755
Mfr. Part No.dsPIC33EV256GM102-I/SS
BrandMicrochip
PHP190.58
Each (In a Pack of 2)
units
60MHz dsPIC33EV 70MIPS 16bit 16 kB Modified Harvard 256 kB Flash MAC Surface Mount SSOP 28 5 V 2
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