| ??? 02/14/08 07:02 Modified: 02/14/08 07:05 Read: times |
#150786 - If you accept datasheet blindly I cant help Responding to: ???'s previous message |
Richard Erlacher said:
Not a bad idea, particularly when something in the datasheet looks suspect. Why do you think manufacturers provide free samples? Its also a matter of inspection after you are not willing to accept it blindly. Take for example, we are working on co2 sensor the Japnese Figaro datasheet says someting about the sensor , and real world scenario is something else after so many averaging we are not even close to their specs which claims a desired miliVolt level for 350ppmCo2 .But the calibrator says it is 350ppm inside the test chamber, Just an example . I asked Erik about what he's observed coming out of his DC-DC converter module, and he failed to answer, probably because he's never looked. true, we designed a filter based on the switchers datasheet and looked for the result of the combination to be "better than satisfactory", no component cares how you get a clean Vcc, most components care that you have one. Malund still the point is missing if a switcher is not upto its mark and you try to filter the crap , it has a potential to harm switcher electronics in the first place .This would result in what is know as a failed powersupply , see for yourself how the Damn TINY/TOP crap switches perform and fail . Erik Malund said:
I freely admit that I 'blindly' trust that my uC will execute the instructions as stated in the bible/datasheet. I also freely admit that I 'blindly' trust that my uC will be capable of delivering Voh min at Ioh max. I freely admit I leave the datasheet as well as the component in which the term 'TBD' is mentioned . I dont trust datasheets blindly . AP |
