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. 160-2634
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. 887-7378
Mfr. Part No.dsPIC30F6012A-30I/PF
BrandMicrochip
$12.998
Each (In a Tray of 90)
units
30MIPS dsPIC30F 30MIPS 16bit 8.192 kB RISC 4.096 kB, 144 kB Flash - Surface Mount TQFP 64 2.5 → 5.5 V 2
RS Stock No. 889-5941
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
$8.862
Each (In a Tube of 10)
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Through Hole PDIP 40 2.5 → 5.5 V 2
RS Stock No. 666-8318
Mfr. Part No.dsPIC30F6012A-30I/PF
BrandMicrochip
$15.59
Each
units
30MIPS dsPIC30F 30MIPS 16bit 8.192 kB RISC 4.096 kB, 144 kB Flash - Surface Mount TQFP 64 2.5 → 5.5 V 2
RS Stock No. 823-3438
Mfr. Part No.DSPIC33FJ64GS610-I/PF
BrandMicrochip
$10.66
Each
units
40MHz - - 16bit 9 kB RISC 64 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
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. 666-9642
Mfr. Part No.dsPIC33FJ128GP708A-I/PT
BrandMicrochip
$10.76
Each
units
40MIPS - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 80 3 → 3.6 V 2
RS Stock No. 622-9954
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
$8.39
Each
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Through Hole PDIP 40 2.5 → 5.5 V 2
RS Stock No. 889-5856
Mfr. Part No.dsPIC33FJ128MC804-I/PT
BrandMicrochip
$6.781
Each (In a Tray of 160)
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 880-6705
Mfr. Part No.dsPIC33EV32GM102-I/SO
BrandMicrochip
$4.125
Each (In a Pack of 2)
units
25MHz - 70MIPS 16bit 4 kB C Compiler, DSP, MCU, Modified Harvard 32 kB Flash ALU, MAC Surface Mount SOIC 28 4.5 → 5.5 V 2
RS Stock No. 178-4871
Mfr. Part No.DSPIC33EV32GM102-I/SO
BrandMicrochip
$3.86
Each (In a Tube of 27)
units
25MHz - 70MIPS 16bit 4 kB C Compiler, DSP, MCU, Modified Harvard 32 kB Flash ALU, MAC Surface Mount SOIC 28 4.5 → 5.5 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. 666-8378
Mfr. Part No.dsPIC33FJ128MC804-I/PT
BrandMicrochip
$11.34
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 178-4841
Mfr. Part No.DSPIC33FJ128GP802-E/SP
BrandMicrochip
$8.66
Each (In a Tube of 15)
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
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. 889-6076
Mfr. Part No.dsPIC33FJ256GP506A-I/PT
BrandMicrochip
$7.127
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. 823-7837
Mfr. Part No.DSPIC33EP64MC204-I/PT
BrandMicrochip
$3.75
Each (In a Pack of 2)
units
70MHz - - 16bit 8 kB Code Efficient 64 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 666-9677
Mfr. Part No.dsPIC33FJ16GS502-I/SO
BrandMicrochip
$6.83
Each
units
50MIPS - - 16bit 2 kB RISC 16 kB Flash - Surface Mount SOIC 28 3 → 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. 889-5281
Mfr. Part No.dsPIC30F4013-30I/PT
BrandMicrochip
$6.268
Each (In a Tray of 160)
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Surface Mount TQFP 44 2.5 → 5.5 V 2
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