Hello everyone. I'm using the TSL2561 to get a ratio (VIS/IR) for a black body (sun and/or filament lamp. This ratio can be calculated theoretically, but for that I need to know what is the raw data for each diode. I know the data sheet gives the responsivity, and I imagine the analogic output is a integration of those curves with the irradiance, but what is considered, in this calculus, IR and VISIBLE? If we simply subtract one curve of the other, we would have a "visible region" from 300 to 500 nm... I don't know if I made myself clear.. Hope you guys can help me. Thank you very much!!
I guess I can simplify my question: what spectral band do I get when I ask for the raw data?for IR and for VIS?
the difference gives you mosly the visible++ spectrum. (250..900 with max at 500nm)
Thank you very much! 
That would be for chanel0, right? Where did you get those values from? From the data sheet I get Chanel 0 from 300 to 1100 and chanel1 from 500 to 1100..
Sorry.. I still don't get it 
Oh I saw the graph just now!! Thank you