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. 177-1580
Mfr. Part No.DSPIC33EP128GP502-I/SP
HK$26.916
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. 177-1581
Mfr. Part No.DSPIC33EP128MC202-I/MM
HK$19.674
Each (In a Tube of 61)
units
60MHz DSPIC 70MIPS 16bit 16 kB C 128 kB Flash ALU Surface Mount QFN 28 3.3 V 2
RS Stock No. 177-1576
Mfr. Part No.DSPIC30F2010-20I/SO
HK$26.779
Each (In a Tube of 27)
units
40MHz DSPIC 20MIPS 16bit 512 B - 12 kB Flash ALU Surface Mount SOIC 28 5.5 V 1
RS Stock No. 177-1594
Mfr. Part No.DSPIC33FJ16GS402-I/SO
HK$27.55
Each (In a Tube of 27)
units
40MHz DSPIC 40MIPS 16bit 2 kB C 16 kB Flash ALU Surface Mount SOIC 28 3.3 V 2
RS Stock No. 177-3515
Mfr. Part No.DSPIC33FJ16GS504-E/PT
HK$37.664
Each (In a Tray of 160)
units
40MHz DSPIC33FJ16GS504 40MIPS 16bit 2 kB Harvard 16 kB Flash ALU Surface Mount TQFP 44 - 1
RS Stock No. 177-3511
Mfr. Part No.DSPIC33EP128MC206-I/PT
HK$23.178
Each (In a Tray of 160)
units
70MHz DSPIC33EP128MC206 70MIPS 16bit 16 kB Harvard 128 kB Flash ALU Surface Mount TQFP 64 - 2
RS Stock No. 177-3764
Mfr. Part No.DSPIC33EP256GP504-I/PT
HK$31.54
Each (In a Pack of 2)
units
70MHz DSPIC33EP256GP504 70MIPS 16bit 32 kB Harvard 256 kB Flash ALU Surface Mount TQFP 44 - 2
RS Stock No. 177-3508
Mfr. Part No.DSPIC30F4011-20I/PT
HK$39.76
Each (In a Tray of 160)
units
120 DSPIC30F4011 30MIPS 16bit 2 kB Harvard 48 kB Flash ALU Surface Mount TQFP 44 - 2
RS Stock No. 177-1582
Mfr. Part No.dsPIC33EP16GS502-I/SO
HK$23.089
Each (In a Tube of 27)
units
60MHz DSPIC 70MIPS 16bit 2 kB C 16 kB Flash ALU Surface Mount SOIC 28 3.3 V 2
RS Stock No. 177-3910
Mfr. Part No.DSPIC30F4011-20I/PT
HK$48.19
Each (In a Pack of 2)
units
120MHz DSPIC30F4011 30MIPS 16bit 2 kB Harvard 48 kB Flash ALU Surface Mount TQFP 44 - 2
RS Stock No. 177-1998
Mfr. Part No.DSPIC33EP32MC202-I/MM
HK$17.30
Each (In a Pack of 5)
units
60MHz DSPIC 70MIPS 16bit 4 kB C 32 kB Flash ALU Surface Mount QFN 28 3.3 V 2
RS Stock No. 177-1595
Mfr. Part No.DSPIC33FJ16GS502-E/MM
HK$35.607
Each (In a Tube of 61)
units
40MHz DSPIC 40MIPS 16bit 2 kB C 16 kB Flash ALU Surface Mount QFN 28 3.3 V 2
RS Stock No. 177-3801
Mfr. Part No.DSPIC33EP512MU814-E/PH
HK$90.10
Each
units
60MHz DSPIC33EP512MU814 60MIPS 16bit 52 kB Harvard 536 kB Flash ALU Surface Mount TQFP 144 - 4
RS Stock No. 177-1852
Mfr. Part No.DSPIC33EP256MC502-I/SS
HK$28.68
Each (In a Pack of 2)
units
60MHz DSPIC 70MIPS 16bit 32 kB C 256 kB Flash ALU Surface Mount SSOP 28 3.3 V 2
RS Stock No. 177-1593
Mfr. Part No.DSPIC33FJ128GP802-E/MM
HK$49.487
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. 177-1763
Mfr. Part No.DSPIC33EP128GP502-I/SP
HK$27.02
Each (In a Pack of 2)
units
60MHz DSPIC 70MIPS 16bit 16 kB C 128 kB Flash ALU Surface Mount SPDIP 28 3.3 V 2
RS Stock No. 177-3509
Mfr. Part No.DSPIC30F6014A-20E/PF
HK$88.835
Each (In a Tray of 90)
units
120MHz DSPIC30F6014A 30MIPS 16bit 8 kB Harvard 144 kB Flash ALU Surface Mount TQFP 64 - 2
RS Stock No. 177-1577
Mfr. Part No.DSPIC30F3013-20I/SO
HK$30.553
Each (In a Tube of 27)
units
40MHz DSPIC 20MIPS 16bit 2.048 kB - 24 kB Flash ALU Surface Mount SOIC 28 5.5 V 2
RS Stock No. 177-1578
Mfr. Part No.DSPIC30F4013-20I/ML
HK$44.511
Each (In a Tube of 45)
units
40MHz DSPIC 20MIPS 16bit 2.048 kB - 48 kB Flash ALU Surface Mount QFN 44 5.5 V 2
RS Stock No. 177-1583
Mfr. Part No.DSPIC33EP256GP502-I/SP
HK$30.899
Each (In a Tube of 15)
units
60MHz DSPIC 70MIPS 16bit 32 kB C 256 kB Flash ALU Surface Mount SPDIP 28 3.3 V 2