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. 177-1669
Mfr. Part No.DSPIC30F4013-20I/ML
BrandMicrochip
TWD207.50
Each (In a Pack of 2)
units
40MHz DSPIC 20MIPS 16bit 2.048 kB - 48 kB Flash ALU Surface Mount QFN 44 5.5 V 2
RS Stock No. 823-3413
Mfr. Part No.DSPIC33FJ06GS101-E/SO
BrandMicrochip
TWD104.00
Each (In a Pack of 2)
units
40MHz - - 16bit 256 B RISC 6 kB Flash - Surface Mount SOIC 18 3 → 3.6 V 1
RS Stock No. 399-785
Mfr. Part No.DSPIC33FJ256MC710-I/PT
BrandMicrochip
TWD290.00
Each
units
40MIPS - - 16bit 32 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
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. 666-9696
Mfr. Part No.dsPIC33FJ256MC710A-I/PT
BrandMicrochip
TWD273.00
Each
units
40MIPS - - 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 177-1776
Mfr. Part No.DSPIC33EP512MC806-I/MR
BrandMicrochip
TWD279.00
Each
units
60MHz DSPIC 70MIPS 16bit 52 kB C 536 kB Flash ALU Surface Mount QFN 64 3.6 V 4
RS Stock No. 178-4858
Mfr. Part No.DSPIC33FJ128GP802-I/SO
BrandMicrochip
TWD164.10
Each (In a Tube of 27)
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount SOIC W 28 3.3 V 2
RS Stock No. 823-3407
Mfr. Part No.DSPIC33EP512GP806-I/PT
BrandMicrochip
TWD259.00
Each
units
60MHz - - 16bit 52 kB RISC 536 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 4
RS Stock No. 825-1023
Mfr. Part No.DSPIC33EP128GM604-I/PT
BrandMicrochip
TWD187.00
Each (In a Pack of 2)
units
140MHz - - 16bit 16 kB DSP 128 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 4
RS Stock No. 538-5047
Mfr. Part No.ADSP-BF532SBSTZ400
TWD705.00
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. 666-8337
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. 160-2634
Mfr. Part No.ADSP-21369KSWZ-4A
TWD1,584.70
Each (In a Tray of 36)
units
800MHz SHARC 350MIPS 32bit 2 Mbit Harvard 6 Mbit ROM Floating Point Surface Mount LQFP 208 3.3 V 2
RS Stock No. 178-4137
Mfr. Part No.DSPIC33FJ256MC710A-I/PT
BrandMicrochip
TWD226.20
Each (In a Tray of 119)
units
40MIPS - - 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 177-1594
Mfr. Part No.DSPIC33FJ16GS402-I/SO
BrandMicrochip
TWD111.00
Each (In a Tube of 27)
units
40MHz DSPIC 40MIPS 16bit 2 kB C 16 kB Flash ALU Surface Mount SOIC 28 3.3 V 2
RS Stock No. 823-7755
Mfr. Part No.DSPIC30F4011-20E/PT
BrandMicrochip
TWD228.00
Each
units
20MHz - - 16bit 2.048 kB RISC 48 kB Flash - Surface Mount TQFP 44 3 → 5.5 V 2
RS Stock No. 916-3696
Mfr. Part No.dsPIC33EP16GS202-I/MX
BrandMicrochip
TWD92.50
Each (In a Pack of 2)
units
70MIPS dsPIC33EP 70MIPS 16bit 2 kB Harvard 16 kB Flash Fixed Point, Floating Point Surface Mount UQFN 28 3 → 3.6 V 1
RS Stock No. 819-7225
Mfr. Part No.ADSP-BF525KBCZ-6A
TWD1,211.00
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. 158-0488
Mfr. Part No.AD6620ASZ
TWD1,080.90
Each (In a Tray of 84)
units
- - - - - - - - - PCB - - - -
RS Stock No. 122-9755
Mfr. Part No.dsPIC33EV256GM102-I/SS
BrandMicrochip
TWD123.00
Each (In a Pack of 2)
units
60MHz dsPIC33EV 70MIPS 16bit 16 kB Modified Harvard 256 kB Flash MAC Surface Mount SSOP 28 5 V 2
RS Stock No. 549-401
Mfr. Part No.DSPIC33FJ64GP802-I/SP
BrandMicrochip
TWD171.00
Each
units
40MIPS - - 16bit 16 kB RISC 64 kB Flash - Through Hole SPDIP 28 3 → 3.6 V 2