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. 177-1588
Mfr. Part No.DSPIC33EP32MC202-I/SO
BrandMicrochip
kr 15,764
Each (In a Tube of 27)
Units
60MHz DSPIC 70MIPS 16bit 4 kB C 32 kB Flash ALU Surface Mount SOIC 28 3.3 V 2
RS Stock No. 178-4870
Mfr. Part No.DSPIC33EV256GM102-I/SO
BrandMicrochip
kr 29,26
Each (In a Tube of 27)
Units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount SOIC 28 4.5 → 5.5 V 2
RS Stock No. 823-3419
Mfr. Part No.DSPIC33EP64MC202-I/MM
BrandMicrochip
kr 20,985
Each (In a Pack of 2)
Units
60MHz - - 16bit 8 kB RISC 64 kB Flash - Surface Mount QFN 28 3 → 3.6 V 2
RS Stock No. 923-6845
Mfr. Part No.TMS320F2812PGFA
kr 162,08
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. 177-3811
Mfr. Part No.DSPIC33FJ16GS504-E/PT
BrandMicrochip
kr 44,715
Each (In a Pack of 2)
Units
40MHz DSPIC33FJ16GS504 40MIPS 16bit 2 kB Harvard 16 kB Flash ALU Surface Mount TQFP 44 - 1
RS Stock No. 183-2206
Mfr. Part No.ADAU1445YSVZ-3A
kr 136,69
Each
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. 177-1585
Mfr. Part No.DSPIC33EP256MC502-I/SS
BrandMicrochip
kr 25,716
Each (In a Tube of 47)
Units
60MHz DSPIC 70MIPS 16bit 32 kB C 256 kB Flash ALU Surface Mount SSOP 28 3.3 V 2
RS Stock No. 666-8378
Mfr. Part No.dsPIC33FJ128MC804-I/PT
BrandMicrochip
kr 54,04
Each
Units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 823-7843
Mfr. Part No.DSPIC33FJ128GP802-E/SO
BrandMicrochip
kr 52,34
Each
Units
40MHz - - 16bit 16.384 kB Harvard 128 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 770-7723
Mfr. Part No.dsPIC33EP128GP504-I/PT
BrandMicrochip
kr 28,22
Each
Units
70MHz - - 16bit 16 kB Modified Harvard 128 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 802-3963
Mfr. Part No.ADSP-21479KBCZ-2A
kr 133,74
Each
Units
266MHz SHARC - 32bit 5 Mbit Super Harvard 4 Mbit ROM Floating Point Surface Mount CSP BGA 196 3.3 V 1
RS Stock No. 823-0868
Mfr. Part No.DSPIC33FJ128GP804-E/PT
BrandMicrochip
kr 55,63
Each
Units
40MHz - - 16bit 16 kB Harvard 128 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 912-6867
Mfr. Part No.DSPIC33FJ64GP802-I/SO
BrandMicrochip
kr 36,697
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. 162-8387
Mfr. Part No.TMS320C6712DZDP150
kr 169,393
Each (In a Tray of 40)
Units
150MHz - - 32bit 64 kB DSP 72 kB EPROM, Flash, ROM Floating Point Surface Mount BGA 272 3.3 V -
RS Stock No. 823-7752
Mfr. Part No.DSPIC30F6012-30I/PF
BrandMicrochip
kr 179,36
Each
Units
30MHz - - 16bit 8.192 kB RISC 144 kB Flash - Surface Mount TQFP 80 2.5 → 5.5 V 2
RS Stock No. 879-3264
Mfr. Part No.DSPIC33FJ64GS606-50I/PT
BrandMicrochip
kr 52,14
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. 178-5224
Mfr. Part No.DSPIC33EP64GS504-I/PT
BrandMicrochip
kr 31,113
Each (In a Tray of 160)
Units
1MHz - 70MIPS 16bit 8 kB Code Efficient, MCU, Modified Harvard 64 kB EEPROM, SRAM MAC Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 889-5856
Mfr. Part No.dsPIC33FJ128MC804-I/PT
BrandMicrochip
kr 45,486
Each (In a Tray of 160)
Units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 823-7770
Mfr. Part No.DSPIC30F6014-30I/PF
BrandMicrochip
kr 190,33
Each
Units
30MHz - - 16bit 8.192 kB RISC 144 kB Flash - Surface Mount TQFP 80 2.5 → 5.5 V 2
RS Stock No. 666-9699
Mfr. Part No.dsPIC33FJ256MC510A-I/PT
BrandMicrochip
kr 60,22
Each
Units
40MIPS - - 16bit 16 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
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