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. 160-2906
Mfr. Part No.ADSP-BF512KBCZ-4
TWD439.00
Each (In a Tray of 189)
units
400MHz Blackfin 400MIPS 16bit 32 kB RISC 116 kB OTP ALU Surface Mount CSP BGA 168 1.8 V 2
RS Stock No. 160-2913
Mfr. Part No.ADSP-BF534BBCZ-5B
TWD889.60
Each (In a Tray of 90)
units
500MHz Blackfin 500MIPS 16bit 32 kB RISC 132 kB Flash ALU Surface Mount CSP BGA 208 1.3 V, 3.3 V 2
RS Stock No. 823-3416
Mfr. Part No.DSPIC33EP512MC202-I/SP
BrandMicrochip
TWD137.50
Each (In a Pack of 2)
units
60MHz - - 16bit 48 kB RISC 512 kB Flash - Through Hole PDIP 28 3 → 3.6 V 2
RS Stock No. 889-5597
Mfr. Part No.dsPIC33FJ256MC710A-I/PF
BrandMicrochip
TWD235.40
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. 666-9712
Mfr. Part No.dsPIC33FJ64GP706A-I/PT
BrandMicrochip
TWD199.00
Each
units
40MIPS - - 16bit 16 kB RISC 64 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 160-2917
Mfr. Part No.ADSP-BF561SKBZ600
TWD1,480.60
Each (In a Tray of 40)
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. 158-0167
Mfr. Part No.ADSP-BF532SBSTZ400
TWD579.40
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. 823-7843
Mfr. Part No.DSPIC33FJ128GP802-E/SO
BrandMicrochip
TWD197.00
Each
units
40MHz - - 16bit 16.384 kB Harvard 128 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 134-5585
Mfr. Part No.dsPIC33EP128GS804-I/ML
BrandMicrochip
TWD145.40
Each (In a Tube of 45)
units
60MHz dsPIC33EP 70MIPS 16bit 8 kB DSP 128 kB Flash MAC Surface Mount QFN 44 3 → 3.6 V 2
RS Stock No. 869-6110
Mfr. Part No.DSPIC33EV256GM104-I/PT
BrandMicrochip
TWD134.00
Each
units
70MHz - 70MIPS 16bit 16 kB C 256 kB Flash - Surface Mount TQFP 44 4.5 → 5.5 V 2
RS Stock No. 819-7231
Mfr. Part No.ADSP-21065LCSZ-240
TWD2,304.00
Each
units
60MHz SHARC 60MIPS 32bit 544 kB Harvard - ROMLess Floating Point Surface Mount MQFP 208 3.13 → 3.6 V -
RS Stock No. 880-2696
Mfr. Part No.DSPIC33EP128GM706-I/PT
BrandMicrochip
TWD197.00
Each
units
70MIPS dsPIC33EP 70MIPS 16bit 16 kB C Compiler, DSP, MCU, Modified Harvard 128 kB Flash Fixed Point, Floating Point Surface Mount TQFP 64 3 → 3.6 V 4
RS Stock No. 869-6107
Mfr. Part No.DSPIC33EP128GP502-I/SO
BrandMicrochip
TWD100.50
Each (In a Pack of 2)
units
70MHz - 70MIPS 16bit 16 kB C 128 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 823-7840
Mfr. Part No.DSPIC33FJ128GP706A-E/PT
BrandMicrochip
TWD232.00
Each
units
40MHz - - 16bit 16 kB Code Efficient 128 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 178-5218
Mfr. Part No.DSPIC33EP128GM706-I/PT
BrandMicrochip
TWD163.70
Each (In a Tray of 160)
units
70MIPS dsPIC33EP 70MIPS 16bit 16 kB C Compiler, DSP, MCU, Modified Harvard 128 kB Flash Fixed Point, Floating Point Surface Mount TQFP 64 3 → 3.6 V 4
RS Stock No. 162-8386
Mfr. Part No.TMS320C6205ZHK200
TWD590.50
Each (In a Tube of 90)
units
250MHz - 1600MIPS 32bit 64 kB DSP 64 kB EEPROM Fixed Point Surface Mount BGA 288 3.3 V -
RS Stock No. 759-1862
Mfr. Part No.ADSP-21262SKSTZ200
TWD986.00
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. 159-9536
Mfr. Part No.ADAU1452WBCPZ
TWD333.20
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. 799-0146
Mfr. Part No.DSPIC33EP512GP504-I/PT
BrandMicrochip
TWD151.00
Each
units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 877-9177
Mfr. Part No.ADSP-BF512KBCZ-4
TWD462.00
Each
units
400MHz Blackfin 400MIPS 16bit 32 kB RISC 116 kB OTP ALU Surface Mount CSP BGA 168 1.8 V 2