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. 835-3835
Mfr. Part No.ADSP-BF706BCPZ-4
$20.41
Each
units
400MHz Blackfin - 16/32bit 1.024 MB Modified Harvard 512 kB ROM ALU Surface Mount LFCSP 88 1.8 V, 3.3 V 2
RS Stock No. 160-2634
Mfr. Part No.ADSP-21369KSWZ-4A
$70.451
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. 809-9102
Mfr. Part No.ADSP-21369KSWZ-4A
$67.53
Each
units
800MHz SHARC 350MIPS 32bit 2 Mbit Harvard 6 Mbit ROM Floating Point Surface Mount LQFP 208 3.3 V 2
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. 909-3452
Mfr. Part No.ADSP-BF518BSWZ4F16
$35.53
Each
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. 697-6975
Mfr. Part No.AD6620ASZ
$56.14
Each
units
- - - - - - - - - PCB - - - -
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. 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. 798-9916
Mfr. Part No.ADAU1452WBCPZ
$24.75
Each
units
294.912MHz SHARC 294MIPS 32bit - DSP - Flash Fixed Point Surface Mount LFCSP 72 3.3 V -
RS Stock No. 877-9221
Mfr. Part No.ADSP-BF592KCPZ
$10.08
Each
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. 759-1887
Mfr. Part No.ADSP-BF533SBSTZ400
$31.62
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. 158-0167
Mfr. Part No.ADSP-BF532SBSTZ400
$25.25
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. 158-0488
Mfr. Part No.AD6620ASZ
$56.165
Each (In a Tray of 84)
units
- - - - - - - - - PCB - - - -
RS Stock No. 159-7706
Mfr. Part No.ADSP-21262SKSTZ200
$48.16
Each (In a Tray of 60)
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. 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. 759-1862
Mfr. Part No.ADSP-21262SKSTZ200
$46.15
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. 877-9155
Mfr. Part No.ADSP-21489KSWZ-5B
$31.48
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. 160-2905
Mfr. Part No.ADSP-BF512BBCZ-4
$23.518
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. 802-3963
Mfr. Part No.ADSP-21479KBCZ-2A
$25.82
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. 160-2906
Mfr. Part No.ADSP-BF512KBCZ-4
$22.015
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