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. 889-5887
Mfr. Part No.dsPIC33FJ256MC510A-I/PT
BrandMicrochip
$9.60
Each (In a Tray of 119)
units
40MIPS - - 16bit 16 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 861-0551
Mfr. Part No.dsPIC33EV256GM106-I/PT
BrandMicrochip
$7.00
Each
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount TQFP 64 4.5 → 5.5 V 2
RS Stock No. 666-8283
Mfr. Part No.dsPIC30F4011-30I/ML
BrandMicrochip
$10.29
Each
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Surface Mount QFN 44 2.5 → 5.5 V 2
RS Stock No. 178-4984
Mfr. Part No.DSPIC33FJ64MC802-I/MM
BrandMicrochip
$7.64
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. 877-9177
Mfr. Part No.ADSP-BF512KBCZ-4
$29.63
Each
units
400MHz Blackfin 400MIPS 16bit 32 kB RISC 116 kB OTP ALU Surface Mount CSP BGA 168 1.8 V 2
RS Stock No. 739-3674
Mfr. Part No.DSPIC33FJ256GP510A-I/PF
BrandMicrochip
$11.66
Each
units
40MHz - 40MIPS 16bit 16 kB Harvard 256 kB Flash Fixed Point, Floating Point Surface Mount TQFP 100 3.3 V 2
RS Stock No. 861-0541
Mfr. Part No.dsPIC33EV256GM102-I/SO
BrandMicrochip
$6.02
Each
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount SOIC 28 4.5 → 5.5 V 2
RS Stock No. 877-9212
Mfr. Part No.ADSP-BF561SKBZ600
$83.86
Each
units
600MHz Blackfin 600MIPS 16bit 32 kB RISC 328 kB Flash ALU Surface Mount PBGA 297 1.35 V, 3.3 V 1
RS Stock No. 177-3511
Mfr. Part No.DSPIC33EP128MC206-I/PT
BrandMicrochip
$4.46
Each (In a Tray of 160)
units
70MHz DSPIC33EP128MC206 70MIPS 16bit 16 kB Harvard 128 kB Flash ALU Surface Mount TQFP 64 - 2
RS Stock No. 622-9998
Mfr. Part No.DSPIC30F4013-30I/P
BrandMicrochip
$9.99
Each
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Through Hole PDIP 40 2.5 → 5.5 V 2
RS Stock No. 177-1580
Mfr. Part No.DSPIC33EP128GP502-I/SP
BrandMicrochip
$5.21
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. 399-757
Mfr. Part No.DSPIC33FJ32MC202-I/SP
BrandMicrochip
$6.46
Each
units
40MIPS - - 16bit 2 kB RISC 32 kB Flash - Through Hole SPDIP 28 3 to 3.6 V 1
RS Stock No. 889-5178
Mfr. Part No.dsPIC30F3013-30I/SO
BrandMicrochip
$6.27
Each (In a Tube of 27)
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 24 kB Flash - Surface Mount SOIC 28 2.5 → 5.5 V 2
RS Stock No. 823-3407
Mfr. Part No.DSPIC33EP512GP806-I/PT
BrandMicrochip
$11.34
Each
units
60MHz - - 16bit 52 kB RISC 536 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 4
RS Stock No. 802-3963
Mfr. Part No.ADSP-21479KBCZ-2A
$34.70
Each
units
266MHz SHARC - 32bit 5 Mbit Super Harvard 4 Mbit ROM Floating Point Surface Mount CSP BGA 196 3.3 V 1
RS Stock No. 759-0216
Mfr. Part No.ADAU1442YSVZ-3A
$33.11
Each
units
172MHz SHARC 3584IPS 28 bit, 56 bit 4 (Parameter) kB, 8 (Data RAM) kB - 40 kB EEPROM MAC Surface Mount TQFP 100 1.8 → 3.3 V 0
RS Stock No. 709-3995
Mfr. Part No.TMS320F2808PZS
$34.90
Each
units
100MHz - 100MIPS 32bit 36 kB Harvard 128 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 178-4861
Mfr. Part No.DSPIC33FJ64MC802-I/SO
BrandMicrochip
$6.76
Each (In a Tube of 27)
units
40MHz - - 16bit 16 kB RISC 64 kB Flash - Surface Mount SOIC W 28 3.3 V 2
RS Stock No. 666-8343
Mfr. Part No.dsPIC33FJ128GP804-I/ML
BrandMicrochip
$8.52
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN 44 3.3 V 2
RS Stock No. 666-8334
Mfr. Part No.dsPIC33FJ128GP802-I/SP
BrandMicrochip
$8.99
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
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