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. 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. 876-6755
Mfr. Part No.DSPIC33FJ128MC706-I/PT
BrandMicrochip
MYR24.501
Each (In a Tray of 160)
units
40MHz - - 16bit 16 kB Modified Harvard 128 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 819-7225
Mfr. Part No.ADSP-BF525KBCZ-6A
MYR141.88
Each
units
600MHz Blackfin 600MIPS 32bit 32 kB Harvard - ROMLess - Surface Mount BGA 208 1.8 V, 2.5 V, 3.3 V 2
RS Stock No. 869-6643
Mfr. Part No.DSPIC33FJ32GP202-I/SO
BrandMicrochip
MYR13.58
Each (In a Tube of 27)
units
40MIPS - - 16bit 2 kB RISC 32 kB Flash - Through Hole SPDIP 28 3 → 3.6 V 1
RS Stock No. 802-3963
Mfr. Part No.ADSP-21479KBCZ-2A
MYR79.43
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. 869-6595
Mfr. Part No.DSPIC33FJ12MC202-I/SO
BrandMicrochip
MYR12.39
Each (In a Tube of 27)
units
40MHz - 40MIPS 16bit 1 kB RISC 12 kB Flash - Through Hole PDIP 20 3 → 3.6 V 1
RS Stock No. 399-789
Mfr. Part No.DSPIC33FJ32GP202-I/SO
BrandMicrochip
MYR14.85
Each
units
40MIPS - - 16bit 2 kB RISC 32 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 1
RS Stock No. 666-8292
Mfr. Part No.dsPIC30F4011-30I/PT
BrandMicrochip
MYR23.39
Each
units
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. 912-6384
Mfr. Part No.ADSP-BF533SBBCZ500
MYR114.564
Each (In a Tray of 189)
units
500MHz Blackfin 500MIPS 16bit - Modified Harvard - ROM, SRAM Fixed Point Surface Mount CSP BGA 160 1.2 V, 1.8 V, 2.5 V, 3.3 V -
RS Stock No. 619-5637
Mfr. Part No.TMS320F2801PZA
MYR47.50
Each
units
100MHz - 100MIPS 32bit 12 kB Harvard 32 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 160-2917
Mfr. Part No.ADSP-BF561SKBZ600
MYR241.299
Each (In a Tray of 40)
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. 823-7840
Mfr. Part No.DSPIC33FJ128GP706A-E/PT
BrandMicrochip
MYR31.07
Each
units
40MHz - - 16bit 16 kB Code Efficient 128 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 823-7770
Mfr. Part No.DSPIC30F6014-30I/PF
BrandMicrochip
MYR136.22
Each
units
30MHz - - 16bit 8.192 kB RISC 144 kB Flash - Surface Mount TQFP 80 2.5 → 5.5 V 2
RS Stock No. 869-6621
Mfr. Part No.DSPIC33FJ32MC202-I/SP
BrandMicrochip
MYR15.83
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. 177-3892
Mfr. Part No.DSPIC33FJ256MC710-I/PF
BrandMicrochip
MYR34.89
Each
units
80MHz DSPIC33FJ256MC710 40MIPS 16bit 30 kB Harvard 256 kB Flash ALU Surface Mount TQFP 100 - 2
RS Stock No. 880-2683
Mfr. Part No.DSPIC33EP128GM304-I/PT
BrandMicrochip
MYR24.93
Each
units
70MIPS dsPIC33EP 70MIPS 16bit 16 kB C Compiler, DSP, MCU, Modified Harvard 128 kB Flash Fixed Point, Floating Point Surface Mount TQFP 44 3 → 3.6 V 4
RS Stock No. 178-4851
Mfr. Part No.DSPIC33EV32GM102-I/SP
BrandMicrochip
MYR12.39
Each (In a Tube of 15)
units
25MHz - 70MIPS 16bit 4 kB C Compiler, DSP, MCU, Modified Harvard 32 kB Flash ALU, MAC Through Hole SPDIP 28 4.5 → 5.5 V 2
RS Stock No. 160-0707
Mfr. Part No.ADSP-21479KBCZ-2A
MYR85.381
Each (In a Tray of 189)
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. 697-6975
Mfr. Part No.AD6620ASZ
MYR148.14
Each
units
- - - - - - - - - PCB - - - -
RS Stock No. 923-6857
Mfr. Part No.TMS320VC5416PGE160
MYR319.15
Each (In a Tray of 60)
units
160MHz - 160MIPS 16bit 256 kB Harvard 32 kB DARAM, ROM, SARAM Fixed Point Surface Mount LQFP 144 1.6 V, 3.3 V -
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