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. 798-5226
Mfr. Part No.DSPIC33FJ64GS608-I/PT
BrandMicrochip
$8.82
Each
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. 178-4985
Mfr. Part No.DSPIC33EV256GM102-I/MM
BrandMicrochip
$4.97
Each (In a Tube of 61)
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount QFN 28 4.5 → 5.5 V 2
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. 160-2920
Mfr. Part No.ADSP-BF592KCPZ
$10.52
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. 145-6667
Mfr. Part No.ADSP-BF518BSWZ4F16
$37.073
Each (In a Tray of 40)
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. 666-8292
Mfr. Part No.dsPIC30F4011-30I/PT
BrandMicrochip
$8.22
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. 178-5209
Mfr. Part No.DSPIC33EP512GM304-I/PT
BrandMicrochip
$7.098
Each (In a Tray of 160)
units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 4
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. 810-3914
Mfr. Part No.DSPIC33EP512GP502-I/SP
BrandMicrochip
$6.26
Each
units
5.5MHz - - 16bit 48 kB RISC 512 kB Flash - Through Hole PDIP 28 3 → 3.6 V 2
RS Stock No. 770-7723
Mfr. Part No.dsPIC33EP128GP504-I/PT
BrandMicrochip
$6.06
Each
units
70MHz - - 16bit 16 kB Modified Harvard 128 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
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. 889-6076
Mfr. Part No.dsPIC33FJ256GP506A-I/PT
BrandMicrochip
$7.127
Each (In a Tray of 160)
units
40MIPS - - 16bit 16 kB RISC 256 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
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. 660-6645
Mfr. Part No.TMS320F2812ZHHA
$32.86
Each
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. 825-1023
Mfr. Part No.DSPIC33EP128GM604-I/PT
BrandMicrochip
$8.65
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. 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. 538-5047
Mfr. Part No.ADSP-BF532SBSTZ400
$24.53
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. 823-7837
Mfr. Part No.DSPIC33EP64MC204-I/PT
BrandMicrochip
$3.75
Each (In a Pack of 2)
units
70MHz - - 16bit 8 kB Code Efficient 64 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 697-6975
Mfr. Part No.AD6620ASZ
$56.14
Each
units
- - - - - - - - - PCB - - - -
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
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