Anonymous
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Jun 19, 2013
01:58 AM
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Jun 19, 2013
01:58 AM
Hi all
Is possible make analog (no dds lut) sine and saw or triangle waveform from internal blocks and few passive component ? (CY8C29466)
Many thanks help
Kamil
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PSoC 1
6 Replies
Anonymous
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Jun 19, 2013
03:59 AM
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Jun 19, 2013
03:59 AM
It depend on requirement of accuracy, One easy way is use PWM for basic oscillation and reduce high harmonic by LPF. This is for sine wave, SAW think yourself.
Anonymous
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Jun 19, 2013
04:47 AM
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Jun 19, 2013
04:47 AM
Internal connection from PWM digital output to analog LPF input is possible ? how to make ?
Jun 19, 2013
05:05 AM
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Jun 19, 2013
05:05 AM
There are many approaches.
1) This method shows filter approach as well as DDS. www.cypress.com/ AN2025
2) Another approach is to use SC Integrator for sww/triangle www.google.com/url AN2115
Regards, Dana.
Anonymous
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Jun 19, 2013
05:12 AM
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Jun 19, 2013
05:12 AM
You will be able almost you want to do. I offer you to place user module at first, Click every where, Double click every where. See dialog box and Obey that's order. Then you might be can design PSoC that you want.
Jun 19, 2013
05:42 AM
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Jun 19, 2013
05:42 AM
You could also experiment with Wien Bridge, capable of very low distortion,
using PGA. Note use of bulb for AGC, could be replaced with jfet/diode network
to implement AGC.
Anonymous
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Jun 19, 2013
07:13 AM
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Jun 19, 2013
07:13 AM
Thanks usefull links and info Kamil