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. 889-5566
Mfr. Part No.DSPIC33FJ256GP710-I/PF
BrandMicrochip
£5.581
Each (In a Tray of 90)
Units
40MIPS - - 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 681-1180
Mfr. Part No.DSPIC33FJ256GP710-I/PF
BrandMicrochip
£6.40
Each
Units
40MIPS - - 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 869-6211
Mfr. Part No.SSC7150-ML-AB0
BrandMicrochip
£3.01
Each (In a Pack of 2)
Units
400kHz - - 32bit - - - - - Surface Mount QFN 28 3.3 V -
RS Stock No. 889-5941
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
£4.276
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. 622-9954
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
£4.67
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. 666-9655
Mfr. Part No.dsPIC33FJ128MC506A-I/PT
BrandMicrochip
£4.63
Each
Units
40MIPS dsPIC33F 40MIPS 16bit 8 kB RISC 128 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
New
RS Stock No. 178-4849
Mfr. Part No.DSPIC33EV256GM102-I/SP
BrandMicrochip
£2.825
Each (In a Tube of 15)
Units
- - - - - - - - - - - - - -
RS Stock No. 861-0545
Mfr. Part No.dsPIC33EV256GM102-I/SP
BrandMicrochip
£3.07
Each
Units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Through Hole PDIP 28 4.5 → 5.5 V 2
RS Stock No. 923-6867
Mfr. Part No.TMS320F2809PZA
£13.182
Each (In a Tube of 90)
Units
100MHz - 100MIPS 32bit 36 kB Harvard 256 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 909-3452
Mfr. Part No.ADSP-BF518BSWZ4F16
£18.11
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. 145-6667
Mfr. Part No.ADSP-BF518BSWZ4F16
£17.563
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. 709-3961
Mfr. Part No.TMS320F2809PZA
£16.28
Each
Units
100MHz - 100MIPS 32bit 36 kB Harvard 256 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 162-4884
Mfr. Part No.TMS320LF2406APZA
£10.42
Each (In a Tray of 90)
Units
40MHz - 40MIPS 16bit 5 kB Harvard 64 kB Flash EEPROM Fixed Point Surface Mount LQFP 100 3.3 V, 5 V -
RS Stock No. 619-5643
Mfr. Part No.TMS320LF2406APZA
£12.31
Each
Units
40MHz - 40MIPS 16bit 5 kB Harvard 64 kB Flash EEPROM Fixed Point Surface Mount LQFP 100 3.3 V, 5 V -
RS Stock No. 666-8334
Mfr. Part No.dsPIC33FJ128GP802-I/SP
BrandMicrochip
£4.35
Each
Units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
New
RS Stock No. 178-4842
Mfr. Part No.DSPIC33FJ128GP802-I/SP
BrandMicrochip
£3.994
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. 869-6634
Mfr. Part No.DSPIC33FJ256MC710-I/PT
BrandMicrochip
£5.059
Each (In a Tray of 119)
Units
40MIPS dsPIC33F 40MIPS 16bit 16 kB RISC 128 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 666-8318
Mfr. Part No.dsPIC30F6012A-30I/PF
BrandMicrochip
£8.63
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. 889-5550
Mfr. Part No.DSPIC30F4013-30I/P
BrandMicrochip
£4.327
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. 887-7378
Mfr. Part No.dsPIC30F6012A-30I/PF
BrandMicrochip
£7.454
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
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