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. 819-7231
Mfr. Part No.ADSP-21065LCSZ-240
PHP4,227.30
Each
units
60MHz SHARC 60MIPS 32bit 544 kB Harvard - ROMLess Floating Point Surface Mount MQFP 208 3.13 → 3.6 V -
RS Stock No. 160-4510
Mfr. Part No.ADSP-21065LCSZ-240
PHP4,019.218
Each (In a Tray of 24)
units
60MHz SHARC 60MIPS 32bit 544 kB Harvard - ROMLess Floating Point Surface Mount MQFP 208 3.13 → 3.6 V -
RS Stock No. 159-7586
Mfr. Part No.ADSP-21261SKSTZ150
PHP659.93
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. 759-0465
Mfr. Part No.ADSP-21261SKSTZ150
PHP803.78
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. 183-2292
Mfr. Part No.ADSP-BF561SBBZ600
PHP2,830.50
Each (In a Tray of 40)
units
600MHz ADSP-BF561 - 16bit 32 kB RISC 328 kB SRAM ALU Surface Mount PBGA 297 3.3 V 1
RS Stock No. 877-9151
Mfr. Part No.ADSP-21488KSWZ-4B
PHP1,153.95
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. 160-2917
Mfr. Part No.ADSP-BF561SKBZ600
PHP2,641.043
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. 160-9884
Mfr. Part No.ADSP-BF707BBCZ-4
PHP946.289
Each (In a Tray of 189)
units
400MHz Blackfin - 16/32bit 1.024 MB Modified Harvard 512 kB ROM ALU Surface Mount CSP BGA 184 1.8 V, 3.3 V 2
RS Stock No. 697-7818
Mfr. Part No.ADSP-BF533SBBCZ500
PHP1,492.05
Each
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. 159-7706
Mfr. Part No.ADSP-21262SKSTZ200
PHP1,604.603
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. 158-0581
Mfr. Part No.ADSP-2181BSZ-133
PHP2,615.066
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. 160-2897
Mfr. Part No.ADSP-21488KSWZ-4B
PHP1,023.75
Each (In a Tray of 40)
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. 697-7833
Mfr. Part No.ADSP-BF537BBCZ-5B
PHP1,668.98
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. 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. 798-9916
Mfr. Part No.ADAU1452WBCPZ
PHP698.78
Each
units
294.912MHz SHARC 294MIPS 32bit - DSP - Flash Fixed Point Surface Mount LFCSP 72 3.3 V -
RS Stock No. 183-2206
Mfr. Part No.ADAU1445YSVZ-3A
PHP1,031.24
Each
units
172MHz ADAU1445 3584 28 bit, 56 bit 8 k - - EEPROM MAC Surface Mount TQFP_EP 100 1.8 V, 3.3 V -
RS Stock No. 759-0216
Mfr. Part No.ADAU1442YSVZ-3A
PHP1,202.42
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. 158-0167
Mfr. Part No.ADSP-BF532SBSTZ400
PHP903.53
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. 835-3835
Mfr. Part No.ADSP-BF706BCPZ-4
PHP1,016.40
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. 835-3838
Mfr. Part No.ADSP-BF707BBCZ-4
PHP1,019.03
Each
units
400MHz Blackfin - 16/32bit 1.024 MB Modified Harvard 512 kB ROM ALU Surface Mount CSP BGA 184 1.8 V, 3.3 V 2