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. 877-9212
Mfr. Part No.ADSP-BF561SKBZ600
kr 352,52
Each
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. 709-3901
Mfr. Part No.TMS320LF2407APGEA
kr 149,35
Each
Units
40MHz - 40MIPS 16bit 5 kB Harvard 64 kB Flash EEPROM Fixed Point Surface Mount LQFP 144 3.3 V, 5 V -
RS Stock No. 912-6867
Mfr. Part No.DSPIC33FJ64GP802-I/SO
BrandMicrochip
kr 39,042
Each (In a Tube of 27)
Units
40MHz - - 16bit 16 kB RISC 64 kB Flash - Surface Mount SOIC W 28 3.3 V 2
RS Stock No. 666-8334
Mfr. Part No.dsPIC33FJ128GP802-I/SP
BrandMicrochip
kr 48,35
Each
Units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
RS Stock No. 889-5437
Mfr. Part No.DSPIC33FJ256GP710A-I/PF
BrandMicrochip
kr 64,919
Each (In a Tray of 90)
Units
40MHz - 40MIPS 16bit 30 kB Harvard 256 kB Flash Fixed Point, Floating Point Surface Mount TQFP 100 3.3 V 2
RS Stock No. 399-739
Mfr. Part No.DSPIC33FJ12MC201-I/SO
BrandMicrochip
kr 28,634
Each (In a Pack of 5)
Units
40MIPS - - 16bit 1 kB RISC 12 kB Flash - Surface Mount SOIC 20 3 → 3.6 V 1
RS Stock No. 666-9699
Mfr. Part No.dsPIC33FJ256MC510A-I/PT
BrandMicrochip
kr 62,11
Each
Units
40MIPS - - 16bit 16 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 799-0105
Mfr. Part No.DSPIC33EP512GM306-I/PT
BrandMicrochip
kr 53,34
Each
Units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 4
RS Stock No. 912-6381
Mfr. Part No.ADSP-2191MKSTZ-160
kr 369,802
Each (In a Tray of 60)
Units
160MHz ADSP-21xx 160MIPS 16bit 160 kB - - SRAM - Surface Mount LQFP 144 2.5 V, 3.3 V -
RS Stock No. 134-5587
Mfr. Part No.dsPIC33EP128GS805-I/PT
BrandMicrochip
kr 32,977
Each (In a Tray of 250)
Units
60MHz dsPIC33EP 70MIPS 16bit 8 kB DSP 128 kB Flash MAC Surface Mount TQFP 48 3 → 3.6 V 2
RS Stock No. 183-2292
Mfr. Part No.ADSP-BF561SBBZ600
kr 441,517
Each (In a Tray of 40)
Units
600MHz ADSP-BF561 - 16bit 32 kB RISC 328 kB SRAM ALU Surface Mount PBGA 297 3.3 V 1
RS Stock No. 158-1842
Mfr. Part No.ADSP-BF537BBCZ-5B
kr 264,506
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. 183-1787
Mfr. Part No.ADAU1445YSVZ-3A
kr 133,747
Each (In a Tray of 90)
Units
172MHz ADAU1445 3584 28 bit, 56 bit 8 k - - EEPROM MAC Surface Mount TQFP_EP 100 1.8 V, 3.3 V -
RS Stock No. 399-773
Mfr. Part No.DSPIC33FJ32MC204-I/PT
BrandMicrochip
kr 34,50
Each
Units
40MIPS - - 16bit 2 kB RISC 32 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 1
RS Stock No. 877-9202
Mfr. Part No.ADSP-BF534BBCZ-5B
kr 261,11
Each
Units
500MHz Blackfin 500MIPS 16bit 32 kB RISC 132 kB Flash ALU Surface Mount CSP BGA 208 1.3 V, 3.3 V 2
RS Stock No. 823-3400
Mfr. Part No.DSPIC33EP256MC502-I/SO
BrandMicrochip
kr 30,46
Each (In a Pack of 2)
Units
60MHz - - 16bit 32 kB RISC 256 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 819-5377
Mfr. Part No.DSPIC30F6010A-20E/PF
BrandMicrochip
kr 106,824
Each (In a Pack of 90)
Units
25MHz - - 16bit 8.192 kB RISC 144 kB Flash - Surface Mount TQFP 80 2.5 → 5.5 V 2
RS Stock No. 912-6785
Mfr. Part No.DSPIC33FJ128MC802-E/SP
BrandMicrochip
kr 54,157
Each (In a Tube of 15)
Units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
RS Stock No. 798-5226
Mfr. Part No.DSPIC33FJ64GS608-I/PT
BrandMicrochip
kr 54,14
Each
Units
50kHz - 50MIPS 16bit 9 kB RISC 64 kB Flash Fixed Point, Floating Point Surface Mount TQFP 80 3.3 V 2
RS Stock No. 177-1593
Mfr. Part No.DSPIC33FJ128GP802-E/MM
BrandMicrochip
kr 49,347
Each (In a Tube of 61)
Units
40MHz DSPIC 40MIPS 16bit 16 kB Modified Harvard 128 kB Flash ALU Surface Mount QFN 28 3.6 V 2
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