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. 549-401
Mfr. Part No.DSPIC33FJ64GP802-I/SP
BrandMicrochip
$8.24
Each
units
40MIPS - - 16bit 16 kB RISC 64 kB Flash - Through Hole SPDIP 28 3 → 3.6 V 2
RS Stock No. 160-2920
Mfr. Part No.ADSP-BF592KCPZ
$10.714
Each (In a Tray of 260)
units
400MHz Blackfin 400MIPS - 32 kB RISC - - ALU Surface Mount LFCSP 64 1.8 V, 2.5 V, 3.3 V 1
RS Stock No. 178-4842
Mfr. Part No.DSPIC33FJ128GP802-I/SP
BrandMicrochip
$9.251
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. 666-8334
Mfr. Part No.dsPIC33FJ128GP802-I/SP
BrandMicrochip
$9.25
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
RS Stock No. 877-9221
Mfr. Part No.ADSP-BF592KCPZ
$15.10
Each
units
400MHz Blackfin 400MIPS - 32 kB RISC - - ALU Surface Mount LFCSP 64 1.8 V, 2.5 V, 3.3 V 1
RS Stock No. 666-8330
Mfr. Part No.dsPIC33FJ128GP802-E/SP
BrandMicrochip
$10.13
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
RS Stock No. 887-7202
Mfr. Part No.DSPIC30F6014A-30I/PF
BrandMicrochip
$17.841
Each (In a Tray of 90)
units
30MIPS dsPIC30F 30MIPS 16bit 8.192 kB RISC 4.096 kB, 144 kB Flash - Surface Mount TQFP 80 2.5 → 5.5 V 2
RS Stock No. 623-0011
Mfr. Part No.DSPIC30F6014A-30I/PF
BrandMicrochip
$18.40
Each
units
30MIPS dsPIC30F 30MIPS 16bit 8.192 kB RISC 4.096 kB, 144 kB Flash - Surface Mount TQFP 80 2.5 → 5.5 V 2
RS Stock No. 622-9910
Mfr. Part No.DSPIC30F3012-30I/SO
BrandMicrochip
$6.64
Each
units
30MIPS dsPIC30F 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. 178-4841
Mfr. Part No.DSPIC33FJ128GP802-E/SP
BrandMicrochip
$9.801
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. 912-6968
Mfr. Part No.DSPIC30F3012-30I/SO
BrandMicrochip
$6.039
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. 666-8343
Mfr. Part No.dsPIC33FJ128GP804-I/ML
BrandMicrochip
$9.37
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN 44 3.3 V 2
RS Stock No. 835-3835
Mfr. Part No.ADSP-BF706BCPZ-4
$32.56
Each
units
400MHz Blackfin - 16/32bit 1.024 MB Modified Harvard 512 kB ROM ALU Surface Mount LFCSP 88 1.8 V, 3.3 V 2
RS Stock No. 861-0545
Mfr. Part No.dsPIC33EV256GM102-I/SP
BrandMicrochip
$6.33
Each
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Through Hole PDIP 28 4.5 → 5.5 V 2
RS Stock No. 799-0146
Mfr. Part No.DSPIC33EP512GP504-I/PT
BrandMicrochip
$7.29
Each
units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 177-1578
Mfr. Part No.DSPIC30F4013-20I/ML
BrandMicrochip
$9.587
Each (In a Tube of 45)
units
40MHz DSPIC 20MIPS 16bit 2.048 kB - 48 kB Flash ALU Surface Mount QFN 44 5.5 V 2
RS Stock No. 869-6621
Mfr. Part No.DSPIC33FJ32MC202-I/SP
BrandMicrochip
$6.424
Each (In a Tube of 15)
units
40MIPS dsPIC33F 40MIPS 16bit 8 kB RISC 64 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 681-1180
Mfr. Part No.DSPIC33FJ256GP710-I/PF
BrandMicrochip
$13.99
Each
units
40MIPS - - 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 178-4984
Mfr. Part No.DSPIC33FJ64MC802-I/MM
BrandMicrochip
$7.601
Each (In a Tube of 61)
units
40MIPS - - 16bit 16 kB RISC 64 kB Flash - Surface Mount QFN-S 28 3 → 3.6 V 2
RS Stock No. 178-4909
Mfr. Part No.DSPIC33EV256GM104-I/ML
BrandMicrochip
$6.116
Each (In a Tube of 45)
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount QFN 44 4.5 → 5.5 V 2
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