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. 177-1581
Mfr. Part No.DSPIC33EP128MC202-I/MM
BrandMicrochip
PHP124.509
Each (In a Tube of 61)
units
60MHz DSPIC 70MIPS 16bit 16 kB C 128 kB Flash ALU Surface Mount QFN 28 3.3 V 2
RS Stock No. 666-8463
Mfr. Part No.dsPIC33FJ64GP804-I/PT
BrandMicrochip
PHP308.25
Each
units
40MHz - - 16bit 16 kB RISC 64 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 177-1857
Mfr. Part No.DSPIC30F2010-20I/SO
BrandMicrochip
PHP176.91
Each (In a Pack of 2)
units
40MHz DSPIC 20MIPS 16bit 512 B - 12 kB Flash ALU Surface Mount SOIC 28 5.5 V 1
RS Stock No. 619-5637
Mfr. Part No.TMS320F2801PZA
PHP609.69
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100MHz - 100MIPS 32bit 12 kB Harvard 32 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 178-4858
Mfr. Part No.DSPIC33FJ128GP802-I/SO
BrandMicrochip
PHP247.53
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. 912-6384
Mfr. Part No.ADSP-BF533SBBCZ500
PHP1,280.069
Each (In a Tray of 189)
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. 823-3425
Mfr. Part No.DSPIC33FJ128MC804-E/PT
BrandMicrochip
PHP372.51
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 162-8388
Mfr. Part No.TMS320C6713BGDP300
PHP2,414.554
Each (In a Tray of 40)
units
300MHz - 2400MIPS 32bit 64 kB DSP 264 kB EPROM Floating Point Surface Mount BGA 272 3.3 V 0
RS Stock No. 177-1580
Mfr. Part No.DSPIC33EP128GP502-I/SP
BrandMicrochip
PHP162.08
Each (In a Tube of 15)
units
60MHz DSPIC 70MIPS 16bit 16 kB C 128 kB Flash ALU Surface Mount SPDIP 28 3.3 V 2
RS Stock No. 869-6615
Mfr. Part No.DSPIC33FJ12MC201-I/SO
BrandMicrochip
PHP149.205
Each (In a Tube of 38)
units
40MIPS dsPIC33F 40MIPS 16bit 1 kB RISC 12 kB Flash - Surface Mount SOIC 20 3 → 3.6 V 1
RS Stock No. 912-2837
Mfr. Part No.DSPIC33FJ128GP804-I/ML
BrandMicrochip
PHP262.914
Each (In a Tube of 45)
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN 44 3.3 V 2
RS Stock No. 893-8329
Mfr. Part No.DSPIC33EP64GS506-I/PT
BrandMicrochip
PHP290.66
Each
units
1MHz - 70MIPS 16bit 8 kB Code Efficient, MCU, Modified Harvard 64 kB EEPROM, SRAM MAC Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 178-5223
Mfr. Part No.DSPIC33FJ128GP306-I/PT
BrandMicrochip
PHP482.586
Each (In a Tray of 160)
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 177-1833
Mfr. Part No.DSPIC33EP256GP504-I/ML
BrandMicrochip
PHP197.87
Each (In a Pack of 2)
units
60MHz DSPIC 70MIPS 16bit 32 kB C 256 kB Flash ALU Surface Mount QFN 44 3.3 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. 399-729
Mfr. Part No.DSPIC33FJ12MC201-I/P
BrandMicrochip
PHP179.168
Each (In a Pack of 5)
units
40MHz - 40MIPS 16bit 1 kB RISC 12 kB Flash - Through Hole PDIP 20 3 → 3.6 V 1
RS Stock No. 877-9151
Mfr. Part No.ADSP-21488KSWZ-4B
PHP1,130.87
Each
units
400MHz SHARC 400MIPS 32/64bit 3 MB Super Harvard 5 MB RAM MAC Surface Mount LQFP 176 1.1 V 1
RS Stock No. 177-1866
Mfr. Part No.DSPIC33EP32GP502-I/SS
BrandMicrochip
PHP115.04
Each (In a Pack of 5)
units
60MHz DSPIC 70MIPS 16bit 4 kB C 32 kB Flash ALU Surface Mount SSOP 28 3.3 V 2
RS Stock No. 666-8444
Mfr. Part No.dsPIC33FJ32MC304-I/PT
BrandMicrochip
PHP226.51
Each
units
40MHz - - 16bit 4 kB RISC 32 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 178-4849
Mfr. Part No.DSPIC33EV256GM102-I/SP
BrandMicrochip
PHP197.87
Each (In a Tube of 15)
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Through Hole PDIP 28 4.5 → 5.5 V 2
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