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. 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. 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. 158-0488
Mfr. Part No.AD6620ASZ
$56.165
Each (In a Tray of 84)
units
- - - - - - - - - PCB - - - -
RS Stock No. 909-3452
Mfr. Part No.ADSP-BF518BSWZ4F16
$35.53
Each
units
400MHz Blackfin - 16 bit, 32 bit 116 kB RISC 16 Mbit Flash MAC Surface Mount LQFP EP 176 1.8 V, 2.5 V, 3.3 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. 178-4141
Mfr. Part No.DSPIC33FJ64GS608-I/PT
BrandMicrochip
$7.48
Each (In a Tray of 119)
units
50kHz - 50MIPS 16bit 9 kB RISC 64 kB Flash Fixed Point, Floating Point Surface Mount TQFP 80 3.3 V 2
RS Stock No. 889-5281
Mfr. Part No.dsPIC30F4013-30I/PT
BrandMicrochip
$6.268
Each (In a Tray of 160)
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. 889-5187
Mfr. Part No.dsPIC30F4011-30I/PT
BrandMicrochip
$6.954
Each (In a Tray of 160)
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. 178-5212
Mfr. Part No.DSPIC33EP512GP504-I/PT
BrandMicrochip
$5.42
Each (In a Tray of 160)
units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 666-8368
Mfr. Part No.dsPIC33FJ128MC802-I/SO
BrandMicrochip
$8.61
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount SOIC W 28 3.3 V 2
RS Stock No. 178-4841
Mfr. Part No.DSPIC33FJ128GP802-E/SP
BrandMicrochip
$8.66
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. 869-6609
Mfr. Part No.DSPIC33FJ12MC201-I/P
BrandMicrochip
$4.549
Each (In a Tube of 22)
units
40MHz - 40MIPS 16bit 1 kB RISC 12 kB Flash - Through Hole PDIP 20 3 → 3.6 V 1
RS Stock No. 923-3678
Mfr. Part No.TMS320F2812ZHHA
$27.012
Each (In a Tube of 160)
units
150MHz - 150MIPS 32bit 36 kB Harvard 256 kB Flash EEPROM Fixed Point Surface Mount BGA MICROSTAR 179 1.9 V, 3.3 V -
RS Stock No. 162-8383
Mfr. Part No.TMS320C5515AZCH12
$16.606
Each (In a Tray of 168)
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. 798-9916
Mfr. Part No.ADAU1452WBCPZ
$24.75
Each
units
294.912MHz SHARC 294MIPS 32bit - DSP - Flash Fixed Point Surface Mount LFCSP 72 3.3 V -
RS Stock No. 666-9677
Mfr. Part No.dsPIC33FJ16GS502-I/SO
BrandMicrochip
$6.83
Each
units
50MIPS - - 16bit 2 kB RISC 16 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 1
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. 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. 770-7739
Mfr. Part No.dsPIC33EP128MC502-I/SO
BrandMicrochip
$5.37
Each
units
70MHz - - 16bit 16 kB Modified Harvard 128 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 159-7706
Mfr. Part No.ADSP-21262SKSTZ200
$48.16
Each (In a Tray of 60)
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
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