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. 178-5220
Mfr. Part No.DSPIC33EV32GM106-I/PT
BrandMicrochip
HK$32.638
Each (In a Tray of 160)
units
25MHz - 70MIPS 16bit 4 kB C Compiler, DSP, MCU, Modified Harvard 32 kB Flash ALU, MAC Surface Mount TQFP 64 4.5 → 5.5 V 2
RS Stock No. 869-6643
Mfr. Part No.DSPIC33FJ32GP202-I/SO
BrandMicrochip
HK$37.651
Each (In a Tube of 27)
units
40MIPS - - 16bit 2 kB RISC 32 kB Flash - Through Hole SPDIP 28 3 → 3.6 V 1
RS Stock No. 177-3508
Mfr. Part No.DSPIC30F4011-20I/PT
BrandMicrochip
HK$60.494
Each (In a Tray of 160)
units
120MHz DSPIC30F4011 30MIPS 16bit 2 kB Harvard 48 kB Flash ALU Surface Mount TQFP 44 - 2
RS Stock No. 177-1596
Mfr. Part No.DSPIC33FJ16GS502-I/MM
BrandMicrochip
HK$46.396
Each (In a Tube of 61)
units
40MHz DSPIC 50MIPS 16bit 2 kB C 16 kB Flash ALU Surface Mount QFN 28 3.3 V 2
RS Stock No. 861-0557
Mfr. Part No.dsPIC33EV256GM106-I/MR
BrandMicrochip
HK$36.92
Each
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount QFN 64 4.5 → 5.5 V 2
RS Stock No. 177-1587
Mfr. Part No.DSPIC33EP32MC202-I/MM
BrandMicrochip
HK$17.014
Each (In a Tube of 61)
units
60MHz DSPIC 70MIPS 16bit 4 kB C 32 kB Flash ALU Surface Mount QFN 28 3.3 V 2
New
RS Stock No. 208-8622
Mfr. Part No.TMS320F2811PBKA
HK$215.82
Each
units
150MHz DSPs 150 32bit 36 KB - 256 KB - - - LQFP 128 - -
RS Stock No. 666-8330
Mfr. Part No.dsPIC33FJ128GP802-E/SP
BrandMicrochip
HK$51.39
Each
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Through Hole SPDIP 28 3.3 V 2
RS Stock No. 799-0092
Mfr. Part No.DSPIC33EP512GM304-I/PT
BrandMicrochip
HK$49.26
Each
units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 4
RS Stock No. 869-6101
Mfr. Part No.DSPIC33EV256GM002-I/SP
BrandMicrochip
HK$30.58
Each
units
70MHz - 70MIPS 16bit 16 kB C 256 kB Flash - Through Hole PDIP 28 4.5 → 5.5 V 2
RS Stock No. 869-6609
Mfr. Part No.DSPIC33FJ12MC201-I/P
BrandMicrochip
HK$29.53
Each (In a Tube of 22)
units
40MHz - 40MIPS 16bit 1 kB RISC 12 kB Flash - Through Hole PDIP 20 3 → 3.6 V 1
RS Stock No. 178-4870
Mfr. Part No.DSPIC33EV256GM102-I/SO
BrandMicrochip
HK$38.114
Each (In a Tube of 27)
units
70MIPS - 70MIPS 16bit 16 kB Code Efficient 256 kB Flash - Surface Mount SOIC 28 4.5 → 5.5 V 2
RS Stock No. 134-5586
Mfr. Part No.dsPIC33EP128GS804-I/PT
BrandMicrochip
HK$50.36
Each (In a Tray of 160)
units
60MHz dsPIC33EP 70MIPS 16bit 8 kB DSP 128 kB Flash MAC Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 823-7761
Mfr. Part No.DSPIC30F6012A-20E/PT
BrandMicrochip
HK$93.34
Each
units
20MHz - - 16bit 8.192 kB RISC 144 kB Flash - Surface Mount TQFP 64 3 → 5.5 V 2
RS Stock No. 666-8425
Mfr. Part No.dsPIC33FJ32GP304-I/PT
BrandMicrochip
HK$36.49
Each
units
40MHz - - 16bit 4 kB RISC 32 kB Flash - Surface Mount TQFP 44 3.3 V 2
RS Stock No. 889-5336
Mfr. Part No.dsPIC33EP256MU810-I/PF
BrandMicrochip
HK$85.912
Each (In a Tray of 90)
units
60MHz - - 16bit 28 kB RISC 280 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 4
RS Stock No. 177-1805
Mfr. Part No.dsPIC33EP16GS502-I/SO
BrandMicrochip
HK$25.296
Each (In a Pack of 5)
units
60MHz DSPIC 70MIPS 16bit 2 kB C 16 kB Flash ALU Surface Mount SOIC 28 3.3 V 2
RS Stock No. 178-5212
Mfr. Part No.DSPIC33EP512GP504-I/PT
BrandMicrochip
HK$41.969
Each (In a Tray of 160)
units
60MHz - - 16bit 48 kB Harvard 512 kB Flash - Surface Mount TQFP 44 3 → 3.6 V 2
RS Stock No. 709-3917
Mfr. Part No.TMS320VC5416PGE160
HK$414.86
Each
units
160MHz - 160MIPS 16bit 256 kB Harvard 32 kB DARAM, ROM, SARAM Fixed Point Surface Mount LQFP 144 1.6 V, 3.3 V -
RS Stock No. 912-2837
Mfr. Part No.DSPIC33FJ128GP804-I/ML
BrandMicrochip
HK$45.042
Each (In a Tube of 45)
units
40MHz - - 16bit 16 kB RISC 128 kB Flash - Surface Mount QFN 44 3.3 V 2
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