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. 177-1577
Mfr. Part No.DSPIC30F3013-20I/SO
BrandMicrochip
PHP183.27
Each (In a Tube of 27)
units
40MHz DSPIC 20MIPS 16bit 2.048 kB - 24 kB Flash ALU Surface Mount SOIC 28 5.5 V 2
RS Stock No. 869-6113
Mfr. Part No.DSPIC33EV64GM106-I/PT
BrandMicrochip
PHP187.65
Each (In a Pack of 2)
units
70MHz - 70MIPS 16bit 8 kB C 64 kB Flash - Surface Mount TQFP 64 4.5 → 5.5 V 2
RS Stock No. 809-9070
Mfr. Part No.ADSP-BF532SBBCZ400
PHP1,096.43
Each
units
32.768kHz Blackfin 400MIPS 16bit 80 kB Harvard - ROMLess Fixed Point Surface Mount CSP BGA 160 1.2 V, 3.3 V 1
RS Stock No. 159-9536
Mfr. Part No.ADAU1452WBCPZ
PHP701.81
Each (In a Tray of 168)
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294.912MHz SHARC 294MIPS 32bit - DSP - Flash Fixed Point Surface Mount LFCSP 72 3.3 V -
RS Stock No. 399-785
Mfr. Part No.DSPIC33FJ256MC710-I/PT
BrandMicrochip
PHP396.61
Each
units
40MIPS - - 16bit 32 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 158-0581
Mfr. Part No.ADSP-2181BSZ-133
PHP2,874.963
Each (In a Tray of 24)
units
33.3MHz - 33.3MIPS 16bit 80 kB Enhanced Harvard - RAM Fixed Point Surface Mount MQFP 128 5 V -
RS Stock No. 399-773
Mfr. Part No.DSPIC33FJ32MC204-I/PT
BrandMicrochip
PHP195.51
Each
units
40MIPS - - 16bit 2 kB RISC 32 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 1
RS Stock No. 818-4711
Mfr. Part No.TMS320C5505AZCH12
PHP498.04
Each
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150MHz - - 16bit 64 kB DSP 320 kB EPROM, Flash, ROM Fixed Point Surface Mount NFBGA 196 1.8 V, 2.5 V, 2.8 V, 3.3 V 1
RS Stock No. 889-5437
Mfr. Part No.DSPIC33FJ256GP710A-I/PF
BrandMicrochip
PHP368.382
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. 178-4861
Mfr. Part No.DSPIC33FJ64MC802-I/SO
BrandMicrochip
PHP232.785
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. 818-4890
Mfr. Part No.TMSDC6722BRFPA225
PHP1,009.45
Each
units
350MHz - 2800MIPS 32 bit, 64 bit 128 kB DSP 32 kB EPROM Floating Point Surface Mount HTQFP 144 3.3 V 0
RS Stock No. 178-4848
Mfr. Part No.DSPIC33EP512MC502-I/SP
BrandMicrochip
PHP225.75
Each (In a Tube of 15)
units
5.5MHz - - 16bit 48 kB RISC 512 kB Flash - Through Hole PDIP 28 3 → 3.6 V 2
RS Stock No. 666-9677
Mfr. Part No.dsPIC33FJ16GS502-I/SO
BrandMicrochip
PHP245.53
Each
units
50MIPS - - 16bit 2 kB RISC 16 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 1
RS Stock No. 861-0539
Mfr. Part No.DSPIC30F5013-20I/PT
BrandMicrochip
PHP395.12
Each
units
20MIPS dsPIC30F 30MIPS 16bit 4 kB RISC 66 kB Flash - Surface Mount TQFP 80 2.5 → 5.5 V 2
RS Stock No. 178-4154
Mfr. Part No.DSPIC33FJ64GP706A-I/PT
BrandMicrochip
PHP526.067
Each (In a Tray of 160)
units
40MIPS - - 16bit 16 kB RISC 64 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 177-3858
Mfr. Part No.DSPIC33FJ256MC710A-H/PF
BrandMicrochip
PHP660.87
Each
units
40MHz DSPIC33FJ256MC710A 20MIPS 16bit 30 kB Harvard 256 kB Flash ALU Surface Mount TQFP 100 - 2
RS Stock No. 178-5357
Mfr. Part No.DSPIC33FJ64MC802-I/SP
BrandMicrochip
PHP462.299
Each (In a Bag of 500)
units
40MIPS - - 16bit 16 kB RISC 64 kB Flash - Through Hole SPDIP 28 3 → 3.6 V 2
RS Stock No. 183-2711
Mfr. Part No.ADSP-BF561SBBZ600
PHP2,886.00
Each
units
600MHz ADSP-BF561 - 16bit 32 kB RISC 328 kB SRAM ALU Surface Mount PBGA 297 3.3 V 1
RS Stock No. 170-4520
Mfr. Part No.XRT6166CD-F
BrandEXAR
PHP685.314
Each (In a Tube of 27)
units
2.048MHz - - 8bit - - - - - Surface Mount SOIC 28 - -
RS Stock No. 923-6857
Mfr. Part No.TMS320VC5416PGE160
PHP2,165.016
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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