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. 759-0216
Mfr. Part No.ADAU1442YSVZ-3A
HK$167.63
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 -
RS Stock No. 159-8137
Mfr. Part No.ADAU1442YSVZ-3A
HK$137.68
Each (In a Tray of 90)
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 -
RS Stock No. 159-9536
Mfr. Part No.ADAU1452WBCPZ
HK$84.12
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. 697-7798
Mfr. Part No.ADSP-2185MKSTZ-300
HK$235.83
Each
units
75MHz ADSP-21xx 75MIPS 16bit 80 kB Enhanced Harvard - RAM Fixed Point Surface Mount LQFP 100 2.5 V, 3.3 V -
RS Stock No. 496-7345
Mfr. Part No.ADSP-BF533SBBZ500
HK$280.84
Each
units
500MHz Blackfin 500MIPS 16bit - Modified Harvard - ROM, SRAM Fixed Point Surface Mount BGA 169 1.2 V, 1.8 V, 2.5 V, 3.3 V -
RS Stock No. 759-1887
Mfr. Part No.ADSP-BF533SBSTZ400
HK$193.47
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. 159-7586
Mfr. Part No.ADSP-21261SKSTZ150
HK$107.56
Each (In a Tray of 60)
units
150MHz SHARC - 32 bit, 40 bit 1 (SRAM) Mbit Super Harvard 3 Mbit ROM Fixed Point, Floating Point Surface Mount LQFP 144 1.14 → 1.26 V, 3.13 → 3.47 V 4
RS Stock No. 160-2634
Mfr. Part No.ADSP-21369KSWZ-4A
HK$377.928
Each (In a Tray of 36)
units
800MHz SHARC 350MIPS 32bit 2 Mbit Harvard 6 Mbit ROM Floating Point Surface Mount LQFP 208 3.3 V 2
RS Stock No. 183-2711
Mfr. Part No.ADSP-BF561SBBZ600
HK$470.73
Each
units
600MHz ADSP-BF561 - 16bit 32 kB RISC 328 kB SRAM ALU Surface Mount PBGA 297 3.3 V 1
RS Stock No. 160-2902
Mfr. Part No.ADSP-2185BSTZ-133
HK$508.89
Each (In a Tray of 90)
units
33.3MHz Blackfin 33.3MIPS 16bit 80 kB DSP 16 Kwords RAM Floating Point Surface Mount TQFP 100 4.5 → 5.5 V -
RS Stock No. 802-3997
Mfr. Part No.ADSP-BF592KCPZ-2
HK$46.81
Each (In a Pack of 2)
units
200MHz Blackfin - 32bit 32 kB Modified Harvard 64 kB ROM MAC Surface Mount LFCSP 64 1.8 V, 2.5 V, 3.3 V 1
RS Stock No. 877-9209
Mfr. Part No.ADSP-BF534BBCZ-5A
HK$244.13
Each
units
500MHz Blackfin 500MIPS 16bit 32 kB RISC 132 kB Flash ALU Surface Mount CSP BGA 182 1.3 V, 3.3 V 2
RS Stock No. 912-6384
Mfr. Part No.ADSP-BF533SBBCZ500
HK$196.81
Each (In a Tray of 189)
units
500MHz Blackfin 500MIPS 16bit - Modified Harvard - ROM, SRAM Fixed Point Surface Mount CSP BGA 160 1.2 V, 1.8 V, 2.5 V, 3.3 V -
RS Stock No. 877-9151
Mfr. Part No.ADSP-21488KSWZ-4B
HK$188.08
Each
units
400MHz SHARC 400MIPS 32/64bit 3 MB Super Harvard 5 MB RAM MAC Surface Mount LQFP 176 1.1 V 1
RS Stock No. 160-2913
Mfr. Part No.ADSP-BF534BBCZ-5B
HK$208.71
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. 759-0465
Mfr. Part No.ADSP-21261SKSTZ150
HK$131.01
Each
units
150MHz SHARC - 32 bit, 40 bit 1 (SRAM) Mbit Super Harvard 3 Mbit ROM Fixed Point, Floating Point Surface Mount LQFP 144 1.14 → 1.26 V, 3.13 → 3.47 V 4
RS Stock No. 819-7225
Mfr. Part No.ADSP-BF525KBCZ-6A
HK$296.84
Each
units
600MHz Blackfin 600MIPS 32bit 32 kB Harvard - ROMLess - Surface Mount BGA 208 1.8 V, 2.5 V, 3.3 V 2
RS Stock No. 160-2920
Mfr. Part No.ADSP-BF592KCPZ
HK$54.51
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. 697-7833
Mfr. Part No.ADSP-BF537BBCZ-5B
HK$272.03
Each
units
500MHz Blackfin 500MIPS 16bit 32 kB Modified Harvard - ROM, SRAM Fixed Point Surface Mount CSP BGA 208 1.2 V, 2.5 V, 3.3 V -
RS Stock No. 802-3963
Mfr. Part No.ADSP-21479KBCZ-2A
HK$163.87
Each
units
266MHz SHARC - 32bit 5 Mbit Super Harvard 4 Mbit ROM Floating Point Surface Mount CSP BGA 196 3.3 V 1