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. 666-8334
Mfr. Part No.dsPIC33FJ128GP802-I/SP
BrandMicrochip
TWD185.00
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
RS Stock No. 178-4893
Mfr. Part No.DSPIC33EV256GM106-I/MR
BrandMicrochip
TWD136.30
Each (In a Tube of 40)
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount QFN 64 4.5 → 5.5 V 2
RS Stock No. 666-9642
Mfr. Part No.dsPIC33FJ128GP708A-I/PT
BrandMicrochip
TWD225.00
Each
units
40MIPS - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 80 3 → 3.6 V 2
RS Stock No. 666-8346
Mfr. Part No.dsPIC33FJ128GP804-I/PT
BrandMicrochip
TWD190.00
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 739-3677
Mfr. Part No.DSPIC33FJ256GP710A-I/PF
BrandMicrochip
TWD266.00
Each
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. 889-5112
Mfr. Part No.DSPIC30F4012-30I/SO
BrandMicrochip
TWD155.10
Each (In a Tube of 27)
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Surface Mount SOIC 28 2.5 → 5.5 V 1
RS Stock No. 912-6823
Mfr. Part No.DSPIC33FJ32MC304-I/PT
BrandMicrochip
TWD122.00
Each (In a Tray of 160)
units
40MHz - - 16bit 4 kB RISC 32 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 158-1842
Mfr. Part No.ADSP-BF537BBCZ-5B
TWD921.30
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. 869-6609
Mfr. Part No.DSPIC33FJ12MC201-I/P
BrandMicrochip
TWD111.30
Each (In a Tube of 22)
units
40MHz - 40MIPS 16bit 1 kB RISC 12 kB Flash - Through Hole PDIP 20 3 → 3.6 V 1
RS Stock No. 810-3914
Mfr. Part No.DSPIC33EP512GP502-I/SP
BrandMicrochip
TWD148.00
Each
units
5.5MHz - - 16bit 48 kB RISC 512 kB Flash - Through Hole PDIP 28 3 → 3.6 V 2
RS Stock No. 823-7821
Mfr. Part No.DSPIC33EP512MC806-I/PT
BrandMicrochip
TWD259.00
Each
units
70MHz - - 16bit 52 kB Code Efficient 536 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 4
RS Stock No. 666-9725
Mfr. Part No.dsPIC33FJ64MC706A-I/PT
BrandMicrochip
TWD202.00
Each
units
40MIPS dsPIC33F 40MIPS 16bit 16 kB RISC 64 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 160-2628
Mfr. Part No.ADSP-BF532SBBCZ400
TWD557.90
Each (In a Tray of 189)
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. 912-6785
Mfr. Part No.DSPIC33FJ128MC802-E/SP
BrandMicrochip
TWD198.70
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. 177-3513
Mfr. Part No.DSPIC33EP256MC204-I/PT
BrandMicrochip
TWD94.80
Each (In a Tray of 160)
units
70MHz DSPIC33EP256MC204 70MIPS 16bit 32 kB Harvard 256 kB Flash ALU Surface Mount TQFP 44 - 2
RS Stock No. 183-2291
Mfr. Part No.ADSP-BF523BBCZ-5A
TWD858.60
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. 823-7792
Mfr. Part No.DSPIC33EP256MC502-I/SP
BrandMicrochip
TWD123.50
Each (In a Pack of 2)
units
70MHz - - 16bit 32 kB Code Efficient 256 kB Flash - Surface Mount SPDIP 28 3 → 3.6 V 2
RS Stock No. 538-5047
Mfr. Part No.ADSP-BF532SBSTZ400
TWD670.00
Each
units
400MHz Blackfin 400MIPS 16bit - Modified Harvard - ROM, SRAM Fixed Point Surface Mount LQFP 176 1.2 V, 1.8 V, 2.5 V, 3.3 V -
RS Stock No. 666-8277
Mfr. Part No.dsPIC30F3013-30I/SO
BrandMicrochip
TWD134.00
Each
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 24 kB Flash - Surface Mount SOIC 28 2.5 → 5.5 V 2
RS Stock No. 134-5631
Mfr. Part No.dsPIC33EP128GS805-I/PT
BrandMicrochip
TWD173.00
Each
units
60MHz dsPIC33EP 70MIPS 16bit 8 kB DSP 128 kB Flash MAC Surface Mount TQFP 48 3 → 3.6 V 2