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. 666-8286
Mfr. Part No.dsPIC30F3013-30I/SP
BrandMicrochip
$7.11
Each
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 24 kB Flash - Through Hole SPDIP 28 2.5 → 5.5 V 2
RS Stock No. 178-4862
Mfr. Part No.DSPIC33FJ16GS502-I/SO
BrandMicrochip
$5.78
Each (In a Tube of 27)
units
50MIPS - - 16bit 2 kB RISC 16 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 1
RS Stock No. 666-8337
Mfr. Part No.dsPIC33FJ128GP802-I/SO
BrandMicrochip
$8.55
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount SOIC W 28 3.3 V 2
RS Stock No. 759-1862
Mfr. Part No.ADSP-21262SKSTZ200
$46.15
Each
units
200MHz SHARC - 32 bit, 40 bit 2 (SRAM) Mbit Super Harvard 4 Mbit ROM Fixed Point, Floating Point Surface Mount LQFP 144 1.14 → 1.26 V, 3.13 → 3.47 V 6
RS Stock No. 178-4859
Mfr. Part No.DSPIC33FJ128MC802-I/SO
BrandMicrochip
$7.27
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. 810-3914
Mfr. Part No.DSPIC33EP512GP502-I/SP
BrandMicrochip
$8.60
Each
units
5.5MHz - - 16bit 48 kB RISC 512 kB Flash - Through Hole PDIP 28 3 → 3.6 V 2
RS Stock No. 178-4867
Mfr. Part No.DSPIC33EP128MC502-I/SO
BrandMicrochip
$3.99
Each (In a Tube of 27)
units
70MHz - - 16bit 16 kB Modified Harvard 128 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 399-729
Mfr. Part No.DSPIC33FJ12MC201-I/P
BrandMicrochip
$5.146
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. 178-5204
Mfr. Part No.DSPIC33EP128GP504-I/PT
BrandMicrochip
$3.97
Each (In a Tray of 160)
units
70MHz - - 16bit 16 kB Modified Harvard 128 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 158-0167
Mfr. Part No.ADSP-BF532SBSTZ400
$25.25
Each (In a Tray of 40)
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. 697-6975
Mfr. Part No.AD6620ASZ
$56.14
Each
units
- - - - - - - - - PCB - - - -
RS Stock No. 818-4715
Mfr. Part No.TMS320C5515AZCH12
$15.49
Each
units
120MHz - - 32bit 64 kB DSP 320 kB EEPROM Fixed Point Surface Mount NFBGA 196 1.8 V, 2.5 V, 2.75 V, 3.3 V 1
RS Stock No. 823-3431
Mfr. Part No.DSPIC33FJ64GS610-I/PT
BrandMicrochip
$9.93
Each
units
40MHz - - 16bit 9 kB RISC 64 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 893-8322
Mfr. Part No.DSPIC33EP64GS504-I/PT
BrandMicrochip
$9.525
Each (In a Pack of 2)
units
1MHz - 70MIPS 16bit 8 kB Code Efficient, MCU, Modified Harvard 64 kB EEPROM, SRAM MAC Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 159-9536
Mfr. Part No.ADAU1452WBCPZ
$22.648
Each (In a Tray of 168)
units
294.912MHz SHARC 294MIPS 32bit - DSP - Flash Fixed Point Surface Mount LFCSP 72 3.3 V -
RS Stock No. 666-8309
Mfr. Part No.dsPIC30F4013-30I/PT
BrandMicrochip
$8.98
Each
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Surface Mount TQFP 44 2.5 → 5.5 V 2
RS Stock No. 823-7821
Mfr. Part No.DSPIC33EP512MC806-I/PT
BrandMicrochip
$10.92
Each
units
70MHz - - 16bit 52 kB Code Efficient 536 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 4
RS Stock No. 178-4847
Mfr. Part No.DSPIC33EP512GP502-I/SP
BrandMicrochip
$6.30
Each (In a Tube of 15)
units
5.5MHz - - 16bit 48 kB RISC 512 kB Flash - Through Hole PDIP 28 3 → 3.6 V 2
RS Stock No. 666-8292
Mfr. Part No.dsPIC30F4011-30I/PT
BrandMicrochip
$9.92
Each
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Surface Mount TQFP 44 2.5 → 5.5 V 2
RS Stock No. 178-5224
Mfr. Part No.DSPIC33EP64GS504-I/PT
BrandMicrochip
$5.63
Each (In a Tray of 160)
units
1MHz - 70MIPS 16bit 8 kB Code Efficient, MCU, Modified Harvard 64 kB EEPROM, SRAM MAC Surface Mount TQFP 44 3 → 3.6 V 2
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