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. 666-8419
Mfr. Part No.dsPIC33FJ32GP204-I/PT
BrandMicrochip
TWD127.00
Each
units
40MHz - - 16bit 2 kB RISC 32 kB Flash - Surface Mount TQFP 44 3.3 V 1
RS Stock No. 177-1817
Mfr. Part No.DSPIC33FJ16GS402-I/SO
BrandMicrochip
TWD121.00
Each (In a Pack of 2)
units
40MHz DSPIC 40MIPS 16bit 2 kB C 16 kB Flash ALU Surface Mount SOIC 28 3.3 V 2
RS Stock No. 666-8315
Mfr. Part No.dsPIC30F6011A-30I/PF
BrandMicrochip
TWD355.00
Each
units
30MIPS dsPIC30F 30MIPS 16bit 6.144 kB RISC 2.048 kB, 132 kB Flash - Surface Mount TQFP 64 2.5 → 5.5 V 2
RS Stock No. 666-9709
Mfr. Part No.dsPIC33FJ64GP306A-I/PT
BrandMicrochip
TWD169.00
Each
units
40MIPS - - 16bit 16 kB RISC 64 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 178-5214
Mfr. Part No.DSPIC33EP512MC506-I/PT
BrandMicrochip
TWD133.90
Each (In a Tray of 160)
units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 178-4869
Mfr. Part No.DSPIC33EP512MC202-I/SO
BrandMicrochip
TWD120.30
Each (In a Tube of 27)
units
5.5MHz - - 16bit 48 kB RISC 512 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 622-9982
Mfr. Part No.DSPIC30F4012-30I/SP
BrandMicrochip
TWD182.00
Each
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Through Hole SPDIP 28 2.5 → 5.5 V 1
RS Stock No. 759-1862
Mfr. Part No.ADSP-21262SKSTZ200
TWD1,096.00
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. 160-2897
Mfr. Part No.ADSP-21488KSWZ-4B
TWD661.00
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. 869-6113
Mfr. Part No.DSPIC33EV64GM106-I/PT
BrandMicrochip
TWD124.00
Each (In a Pack of 2)
units
70MHz - 70MIPS 16bit 8 kB C 64 kB Flash - Surface Mount TQFP 64 4.5 → 5.5 V 2
RS Stock No. 177-3513
Mfr. Part No.DSPIC33EP256MC204-I/PT
BrandMicrochip
TWD94.80
Each (In a Tray of 160)
units
70MHz DSPIC33EP256MC204 70MIPS 16bit 32 kB Harvard 256 kB Flash ALU Surface Mount TQFP 44 - 2
RS Stock No. 177-1580
Mfr. Part No.DSPIC33EP128GP502-I/SP
BrandMicrochip
TWD104.20
Each (In a Tube of 15)
units
60MHz DSPIC 70MIPS 16bit 16 kB C 128 kB Flash ALU Surface Mount SPDIP 28 3.3 V 2
RS Stock No. 178-4836
Mfr. Part No.DSPIC30F4011-20I/P
BrandMicrochip
TWD189.30
Each (In a Tube of 10)
units
20MIPS 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. 178-4142
Mfr. Part No.DSPIC30F5013-20I/PT
BrandMicrochip
TWD218.30
Each (In a Tray of 119)
units
20MIPS dsPIC30F 30MIPS 16bit 4 kB RISC 66 kB Flash - Surface Mount TQFP 80 2.5 → 5.5 V 2
RS Stock No. 178-4899
Mfr. Part No.DSPIC30F4011-30I/ML
BrandMicrochip
TWD79.00
Each (In a Tube of 45)
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Surface Mount QFN 44 2.5 → 5.5 V 2
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. 666-9652
Mfr. Part No.dsPIC33FJ128MC706A-I/PT
BrandMicrochip
TWD216.00
Each
units
40MIPS - - 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 666-8258
Mfr. Part No.dsPIC30F2011-30I/SO
BrandMicrochip
TWD108.00
Each
units
30MIPS dsPIC30F 30MIPS 16bit 1.024 kB RISC 12 kB Flash - Surface Mount SOIC 18 2.5 → 5.5 V 1
RS Stock No. 177-1593
Mfr. Part No.DSPIC33FJ128GP802-E/MM
BrandMicrochip
TWD199.50
Each (In a Tube of 61)
units
40MHz DSPIC 40MIPS 16bit 16 kB Modified Harvard 128 kB Flash ALU Surface Mount QFN 28 3.6 V 2
RS Stock No. 160-2634
Mfr. Part No.ADSP-21369KSWZ-4A
TWD1,584.70
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