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. 399-779
Mfr. Part No.DSPIC33FJ64GP206-I/PT
BrandMicrochip
TWD165.00
Each
units
40MIPS dsPIC33F 40MIPS 16bit 8 kB RISC 64 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 399-795
Mfr. Part No.DSPIC33FJ32GP202-I/SP
BrandMicrochip
TWD124.00
Each
units
40MIPS - - 16bit 2 kB RISC 32 kB Flash - Through Hole SPDIP 28 3 to 3.6 V 1
RS Stock No. 912-6867
Mfr. Part No.DSPIC33FJ64GP802-I/SO
BrandMicrochip
TWD143.40
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. 889-5437
Mfr. Part No.DSPIC33FJ256GP710A-I/PF
BrandMicrochip
TWD230.60
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. 178-4860
Mfr. Part No.DSPIC33FJ32MC302-I/SO
BrandMicrochip
TWD120.40
Each (In a Tube of 27)
units
40MHz - - 16bit 4 kB RISC 32 kB Flash - Surface Mount SOIC W 28 3.3 V 1
RS Stock No. 177-3892
Mfr. Part No.DSPIC33FJ256MC710-I/PF
BrandMicrochip
TWD294.00
Each
units
80MHz DSPIC33FJ256MC710 40MIPS 16bit 30 kB Harvard 256 kB Flash ALU Surface Mount TQFP 100 - 2
RS Stock No. 160-2628
Mfr. Part No.ADSP-BF532SBBCZ400
TWD552.90
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. 177-3801
Mfr. Part No.DSPIC33EP512MU814-E/PH
BrandMicrochip
TWD341.00
Each
units
60MHz DSPIC33EP512MU814 60MIPS 16bit 52 kB Harvard 536 kB Flash ALU Surface Mount TQFP 144 - 4
RS Stock No. 177-1596
Mfr. Part No.DSPIC33FJ16GS502-I/MM
BrandMicrochip
TWD132.40
Each (In a Tube of 61)
units
40MHz DSPIC 50MIPS 16bit 2 kB C 16 kB Flash ALU Surface Mount QFN 28 3.3 V 2
RS Stock No. 134-5614
Mfr. Part No.dsPIC33EP128GS702-I/MM
BrandMicrochip
TWD159.00
Each
units
60MHz dsPIC33EP 70MIPS 16bit 8 kB DSP 128 kB Flash MAC Surface Mount QFN-S 28 3 → 3.6 V 2
RS Stock No. 666-8337
Mfr. Part No.dsPIC33FJ128GP802-I/SO
BrandMicrochip
TWD179.00
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount SOIC W 28 3.3 V 2
RS Stock No. 823-7792
Mfr. Part No.DSPIC33EP256MC502-I/SP
BrandMicrochip
TWD118.00
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. 697-7818
Mfr. Part No.ADSP-BF533SBBCZ500
TWD992.00
Each
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. 178-5220
Mfr. Part No.DSPIC33EV32GM106-I/PT
BrandMicrochip
TWD93.20
Each (In a Tray of 160)
units
25MHz - 70MIPS 16bit 4 kB C Compiler, DSP, MCU, Modified Harvard 32 kB Flash ALU, MAC Surface Mount TQFP 64 4.5 → 5.5 V 2
RS Stock No. 666-8245
Mfr. Part No.dsPIC30F2010-30I/SO
BrandMicrochip
TWD125.00
Each
units
30MIPS dsPIC30F 30MIPS 16bit 512 B RISC 1.024 kB, 12 kB Flash - Surface Mount SOIC 28 2.5 → 5.5 V 1
RS Stock No. 177-3984
Mfr. Part No.DSPIC33EP128MC206-I/PT
BrandMicrochip
TWD102.50
Each (In a Pack of 2)
units
70MHz DSPIC33EP128MC206 70MIPS 16bit 16 kB Harvard 128 kB Flash ALU Surface Mount TQFP 64 - 2
RS Stock No. 178-4841
Mfr. Part No.DSPIC33FJ128GP802-E/SP
BrandMicrochip
TWD193.90
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. 399-785
Mfr. Part No.DSPIC33FJ256MC710-I/PT
BrandMicrochip
TWD277.00
Each
units
40MIPS - - 16bit 32 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 159-7586
Mfr. Part No.ADSP-21261SKSTZ150
TWD434.10
Each (In a Tray of 60)
units
150MHz SHARC - 32 bit, 40 bit 1 (SRAM) Mbit Super Harvard 3 Mbit ROM Fixed Point, Floating Point Surface Mount LQFP 144 1.14 → 1.26 V, 3.13 → 3.47 V 4
RS Stock No. 160-4510
Mfr. Part No.ADSP-21065LCSZ-240
TWD2,313.90
Each (In a Tray of 24)
units
60MHz SHARC 60MIPS 32bit 544 kB Harvard - ROMLess Floating Point Surface Mount MQFP 208 3.13 → 3.6 V -