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. 681-1180
Mfr. Part No.DSPIC33FJ256GP710-I/PF
BrandMicrochip
£6.52
Each
Units
40MIPS - - 16bit 30 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 889-5566
Mfr. Part No.DSPIC33FJ256GP710-I/PF
BrandMicrochip
£5.99
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. 622-9954
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
£4.75
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. 889-5941
Mfr. Part No.DSPIC30F4011-30I/P
BrandMicrochip
£4.752
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. 666-9655
Mfr. Part No.dsPIC33FJ128MC506A-I/PT
BrandMicrochip
£4.44
Each
Units
40MIPS dsPIC33F 40MIPS 16bit 8 kB RISC 128 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 861-0545
Mfr. Part No.dsPIC33EV256GM102-I/SP
BrandMicrochip
£2.94
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. 178-4849
Mfr. Part No.DSPIC33EV256GM102-I/SP
BrandMicrochip
£2.94
Each (In a Tube of 15)
Units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Through Hole PDIP 28 4.5 → 5.5 V 2
RS Stock No. 619-5643
Mfr. Part No.TMS320LF2406APZA
£13.77
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. 162-4884
Mfr. Part No.TMS320LF2406APZA
£12.005
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. 178-4842
Mfr. Part No.DSPIC33FJ128GP802-I/SP
BrandMicrochip
£4.178
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. 666-8334
Mfr. Part No.dsPIC33FJ128GP802-I/SP
BrandMicrochip
£4.18
Each
Units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
RS Stock No. 889-5550
Mfr. Part No.DSPIC30F4013-30I/P
BrandMicrochip
£4.633
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. 622-9998
Mfr. Part No.DSPIC30F4013-30I/P
BrandMicrochip
£4.63
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. 666-8318
Mfr. Part No.dsPIC30F6012A-30I/PF
BrandMicrochip
£8.27
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. 399-785
Mfr. Part No.DSPIC33FJ256MC710-I/PT
BrandMicrochip
£6.52
Each
Units
40MIPS - - 16bit 32 kB RISC 256 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 869-6634
Mfr. Part No.DSPIC33FJ256MC710-I/PT
BrandMicrochip
£5.98
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. 825-1032
Mfr. Part No.DSPIC33EP32MC202-I/SS
BrandMicrochip
£1.208
Each (In a Pack of 5)
Units
140MHz - - 16bit 4 kB DSP 32 kB Flash - Surface Mount SSOP 28 3 → 3.6 V 2
RS Stock No. 887-7378
Mfr. Part No.dsPIC30F6012A-30I/PF
BrandMicrochip
£7.504
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. 876-6749
Mfr. Part No.DSPIC33FJ256GP506-I/PT
BrandMicrochip
£4.445
Each (In a Tray of 160)
Units
40MHz - - 16bit 16 kB Modified Harvard 256 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
RS Stock No. 399-818
Mfr. Part No.DSPIC33FJ256GP506-I/PT
BrandMicrochip
£4.83
Each
Units
40MHz - - 16bit 16 kB Modified Harvard 256 kB Flash - Surface Mount TQFP 64 3 → 3.6 V 2
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