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. 177-1576
Mfr. Part No.DSPIC30F2010-20I/SO
BrandMicrochip
kr 28,854
Each (In a Tube of 27)
Units
40MHz DSPIC 20MIPS 16bit 512 B - 12 kB Flash ALU Surface Mount SOIC 28 5.5 V 1
RS Stock No. 709-3995
Mfr. Part No.TMS320F2808PZS
kr 129,80
Each
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. 666-8374
Mfr. Part No.dsPIC33FJ128MC804-I/ML
BrandMicrochip
kr 52,24
Each
Units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN 44 3.3 V 2
RS Stock No. 912-6968
Mfr. Part No.DSPIC30F3012-30I/SO
BrandMicrochip
kr 31,807
Each (In a Tube of 42)
Units
30MIPS - - 16bit 2.048 kB RISC 1.024 kB, 24 kB Flash - Surface Mount SOIC 18 2.5 → 5.5 V 1
RS Stock No. 178-4874
Mfr. Part No.DSPIC33EP64GS502-I/SO
BrandMicrochip
kr 34,81
Each (In a Tube of 27)
Units
1MHz - 70MIPS 16bit 8 kB Code Efficient, MCU, Modified Harvard 64 kB EEPROM, SRAM MAC Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 809-9070
Mfr. Part No.ADSP-BF532SBBCZ400
kr 142,01
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. 666-9642
Mfr. Part No.dsPIC33FJ128GP708A-I/PT
BrandMicrochip
kr 60,02
Each
Units
40MIPS - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 80 3 → 3.6 V 2
RS Stock No. 158-0581
Mfr. Part No.ADSP-2181BSZ-133
kr 463,771
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. 666-8337
Mfr. Part No.dsPIC33FJ128GP802-I/SO
BrandMicrochip
kr 43,37
Each
Units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount SOIC W 28 3.3 V 2
RS Stock No. 869-6637
Mfr. Part No.DSPIC33FJ32MC204-I/PT
BrandMicrochip
kr 28,048
Each (In a Tray of 160)
Units
40MIPS - - 16bit 32 kB RISC 256 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 1
RS Stock No. 134-5583
Mfr. Part No.dsPIC33EP128GS702-I/SO
BrandMicrochip
kr 32,813
Each (In a Tube of 27)
Units
60MHz dsPIC33EP 70MIPS 16bit 8 kB DSP 128 kB Flash MAC Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 183-2291
Mfr. Part No.ADSP-BF523BBCZ-5A
kr 187,762
Each (In a Tray of 90)
Units
533MHz ADSP-BF523 - 32bit 32 kB RISC 132 kB SRAM ALU Surface Mount BGA 208 3.3 V 2
RS Stock No. 160-4509
Mfr. Part No.ADSP-BF525KBCZ-6A
kr 273,028
Each (In a Tray of 90)
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. 869-6113
Mfr. Part No.DSPIC33EV64GM106-I/PT
BrandMicrochip
kr 30,855
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. 178-4985
Mfr. Part No.DSPIC33EV256GM102-I/MM
BrandMicrochip
kr 28,016
Each (In a Tube of 61)
Units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount QFN 28 4.5 → 5.5 V 2
RS Stock No. 889-5941
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
kr 51,495
Each (In a Tube of 10)
Units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Through Hole PDIP 40 2.5 → 5.5 V 2
RS Stock No. 823-3416
Mfr. Part No.DSPIC33EP512MC202-I/SP
BrandMicrochip
kr 34,195
Each (In a Pack of 2)
Units
60MHz - - 16bit 48 kB RISC 512 kB Flash - Through Hole PDIP 28 3 → 3.6 V 2
RS Stock No. 877-9202
Mfr. Part No.ADSP-BF534BBCZ-5B
kr 261,71
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. 893-8322
Mfr. Part No.DSPIC33EP64GS504-I/PT
BrandMicrochip
kr 30,585
Each (In a Pack of 2)
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. 622-9932
Mfr. Part No.DSPIC30F4011-20I/P
BrandMicrochip
kr 48,25
Each
Units
20MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Through Hole PDIP 40 2.5 → 5.5 V 2