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. 177-1594
Mfr. Part No.DSPIC33FJ16GS402-I/SO
BrandMicrochip
PHP152.703
Each (In a Tube of 27)
units
40MHz DSPIC 40MIPS 16bit 2 kB C 16 kB Flash ALU Surface Mount SOIC 28 3.3 V 2
RS Stock No. 399-830
Mfr. Part No.DSPIC33FJ128MC706-I/PT
BrandMicrochip
PHP352.90
Each
units
40MHz - - 16bit 16 kB Modified Harvard 128 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 183-2291
Mfr. Part No.ADSP-BF523BBCZ-5A
PHP1,198.80
Each (In a Tray of 90)
units
533MHz ADSP-BF523 - 32bit 32 kB RISC 132 kB SRAM ALU Surface Mount BGA 208 3.3 V 2
RS Stock No. 889-6076
Mfr. Part No.dsPIC33FJ256GP506A-I/PT
BrandMicrochip
PHP253.697
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. 799-0127
Mfr. Part No.DSPIC33EP512GM706-I/MR
BrandMicrochip
PHP329.70
Each
units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount QFN 64 3 → 3.6 V 4
RS Stock No. 893-8329
Mfr. Part No.DSPIC33EP64GS506-I/PT
BrandMicrochip
PHP229.43
Each
units
1MHz - 70MIPS 16bit 8 kB Code Efficient, MCU, Modified Harvard 64 kB EEPROM, SRAM MAC Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 158-0581
Mfr. Part No.ADSP-2181BSZ-133
PHP2,435.60
Each (In a Tray of 24)
units
33.3MHz - 33.3MIPS 16bit 80 kB Enhanced Harvard - RAM Fixed Point Surface Mount MQFP 128 5 V -
RS Stock No. 759-1887
Mfr. Part No.ADSP-BF533SBSTZ400
PHP1,163.54
Each
units
400MHz Blackfin - 16bit 16 (Instruction SRAM Cache) kB, 32 (Data SRAM/Data SRAM Cache) kB, 64 (Instruction SRAM) kB RISC 1 kB ROM MAC Surface Mount LQFP 176 0.8 → 1.45 V, 1.75 → 3.6 V 1
RS Stock No. 178-4849
Mfr. Part No.DSPIC33EV256GM102-I/SP
BrandMicrochip
PHP197.87
Each (In a Tube of 15)
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Through Hole PDIP 28 4.5 → 5.5 V 2
RS Stock No. 877-9155
Mfr. Part No.ADSP-21489KSWZ-5B
PHP1,283.63
Each
units
450MHz SHARC 450MIPS 32/64bit 5 MB Super Harvard 5 MB RAM MAC Surface Mount LQFP 176 1.1 V 1
RS Stock No. 869-6637
Mfr. Part No.DSPIC33FJ32MC204-I/PT
BrandMicrochip
PHP162.415
Each (In a Tray of 160)
units
40MIPS - - 16bit 32 kB RISC 256 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 1
RS Stock No. 162-8388
Mfr. Part No.TMS320C6713BGDP300
PHP2,463.83
Each (In a Tray of 40)
units
300MHz - 2400MIPS 32bit 64 kB DSP 264 kB EPROM Floating Point Surface Mount BGA 272 3.3 V 0
RS Stock No. 739-3677
Mfr. Part No.DSPIC33FJ256GP710A-I/PF
BrandMicrochip
PHP410.03
Each
units
40MHz - 40MIPS 16bit 30 kB Harvard 256 kB Flash Fixed Point, Floating Point Surface Mount TQFP 100 3.3 V 2
RS Stock No. 666-9696
Mfr. Part No.dsPIC33FJ256MC710A-I/PT
BrandMicrochip
PHP411.09
Each
units
40MIPS - - 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 889-5714
Mfr. Part No.dsPIC30F5013-30I/PT
BrandMicrochip
PHP396.27
Each (In a Tray of 119)
units
30MIPS dsPIC30F 30MIPS 16bit 4.096 kB RISC 1.024 kB, 66 kB Flash - Surface Mount TQFP 80 2.5 → 5.5 V 2
RS Stock No. 666-9680
Mfr. Part No.dsPIC33FJ256GP710A-I/PT
BrandMicrochip
PHP449.00
Each
units
40MIPS - - 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 889-5597
Mfr. Part No.dsPIC33FJ256MC710A-I/PF
BrandMicrochip
PHP399.00
Each (In a Tray of 90)
units
40MIPS dsPIC33F 40MIPS 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 666-8334
Mfr. Part No.dsPIC33FJ128GP802-I/SP
BrandMicrochip
PHP325.85
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
RS Stock No. 823-3403
Mfr. Part No.dsPIC33EP256MU810-I/PF
BrandMicrochip
PHP493.36
Each
units
60MHz - - 16bit 28 kB RISC 280 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 4
RS Stock No. 177-1817
Mfr. Part No.DSPIC33FJ16GS402-I/SO
BrandMicrochip
PHP182.53
Each (In a Pack of 2)
units
40MHz DSPIC 40MIPS 16bit 2 kB C 16 kB Flash ALU Surface Mount SOIC 28 3.3 V 2
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