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. 709-3908
Mfr. Part No.TMS320F2812PGFA
HK$206.28
Each
units
150MHz - 150MIPS 32bit 36 kB Harvard 256 kB Flash EEPROM Fixed Point Surface Mount LQFP 176 1.9 V, 3.3 V -
RS Stock No. 923-6845
Mfr. Part No.TMS320F2812PGFA
HK$178.936
Each (In a Tray of 40)
units
150MHz - 150MIPS 32bit 36 kB Harvard 256 kB Flash EEPROM Fixed Point Surface Mount LQFP 176 1.9 V, 3.3 V -
RS Stock No. 759-0216
Mfr. Part No.ADAU1442YSVZ-3A
HK$157.81
Each
units
172MHz SHARC 3584IPS 28 bit, 56 bit 4 (Parameter) kB, 8 (Data RAM) kB - 40 kB EEPROM MAC Surface Mount TQFP 100 1.8 → 3.3 V -
RS Stock No. 178-4836
Mfr. Part No.DSPIC30F4011-20I/P
BrandMicrochip
HK$46.902
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. 159-8137
Mfr. Part No.ADAU1442YSVZ-3A
HK$131.501
Each (In a Tray of 90)
units
172MHz SHARC 3584IPS 28 bit, 56 bit 4 (Parameter) kB, 8 (Data RAM) kB - 40 kB EEPROM MAC Surface Mount TQFP 100 1.8 → 3.3 V -
RS Stock No. 889-5187
Mfr. Part No.dsPIC30F4011-30I/PT
BrandMicrochip
HK$39.624
Each (In a Tray of 160)
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Surface Mount TQFP 44 2.5 → 5.5 V 2
RS Stock No. 823-3431
Mfr. Part No.DSPIC33FJ64GS610-I/PT
BrandMicrochip
HK$56.76
Each
units
40MHz - - 16bit 9 kB RISC 64 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 825-1032
Mfr. Part No.DSPIC33EP32MC202-I/SS
BrandMicrochip
HK$16.60
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. 622-9932
Mfr. Part No.DSPIC30F4011-20I/P
BrandMicrochip
HK$46.44
Each
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. 709-3933
Mfr. Part No.TMS320F2806PZA
HK$137.01
Each
units
100MHz - 100MIPS 32bit 20 kB Harvard 64 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 823-3400
Mfr. Part No.DSPIC33EP256MC502-I/SO
BrandMicrochip
HK$29.02
Each (In a Pack of 2)
units
60MHz - - 16bit 32 kB RISC 256 kB Flash - Surface Mount SOIC 28 3 → 3.6 V 2
RS Stock No. 162-7546
Mfr. Part No.TMS320F2806PZA
HK$119.88
Each (In a Tray of 90)
units
100MHz - 100MIPS 32bit 20 kB Harvard 64 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 666-8292
Mfr. Part No.dsPIC30F4011-30I/PT
BrandMicrochip
HK$48.19
Each
units
30MIPS dsPIC30F 30MIPS 16bit 2.048 kB RISC 1.024 kB, 48 kB Flash - Surface Mount TQFP 44 2.5 → 5.5 V 2
RS Stock No. 869-6615
Mfr. Part No.DSPIC33FJ12MC201-I/SO
BrandMicrochip
HK$23.823
Each (In a Tube of 38)
units
40MIPS dsPIC33F 40MIPS 16bit 1 kB RISC 12 kB Flash - Surface Mount SOIC 20 3 → 3.6 V 1
RS Stock No. 619-5659
Mfr. Part No.TMS320F2808PZA
HK$174.06
Each
units
100MHz - 100MIPS 32bit 36 kB Harvard 128 kB Flash Fixed Point Surface Mount LQFP 100 1.8 V, 3.3 V -
RS Stock No. 869-6621
Mfr. Part No.DSPIC33FJ32MC202-I/SP
BrandMicrochip
HK$31.414
Each (In a Tube of 15)
units
40MIPS dsPIC33F 40MIPS 16bit 8 kB RISC 64 kB Flash - Surface Mount TQFP 100 3 → 3.6 V 2
RS Stock No. 177-1819
Mfr. Part No.DSPIC33EP256GP502-I/SP
BrandMicrochip
HK$31.20
Each (In a Pack of 2)
units
60MHz DSPIC 70MIPS 16bit 32 kB C 256 kB Flash ALU Surface Mount SPDIP 28 3.3 V 2
RS Stock No. 178-5217
Mfr. Part No.DSPIC33EP128GM304-I/PT
BrandMicrochip
HK$36.962
Each (In a Tray of 160)
units
70MIPS dsPIC33EP 70MIPS 16bit 16 kB C Compiler, DSP, MCU, Modified Harvard 128 kB Flash Fixed Point, Floating Point Surface Mount TQFP 44 3 → 3.6 V 4
RS Stock No. 869-6595
Mfr. Part No.DSPIC33FJ12MC202-I/SO
BrandMicrochip
HK$24.984
Each (In a Tube of 27)
units
40MHz - 40MIPS 16bit 1 kB RISC 12 kB Flash - Through Hole PDIP 20 3 → 3.6 V 1
RS Stock No. 921-2785
Mfr. Part No.TMS320C5535AZHH05
HK$40.746
Each (In a Tube of 160)
units
50MHz - 50MIPS 32bit 320 kB DSP 128 kB ROM Fixed Point Surface Mount BGA 144 1.05 V 1
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