| Onvinyl |
Hi,
is anyone aware of an (online or book) resource, where several scope pictures (like overshoot on a square-wave) an their possible reasons are discussed ? Some are intiutive to me, but some are not.
At the moment, I'm having an otherwise good looking square-wave with an additional step on the top, like this:
__----------
|
|
|
I'm in the process of tweaking the feedback path of a discrete pre, so I often run into funny (to me) slopes and envelopes, and such a resource would be great.
Thanks,
Rüdiger |
|
|
| I_Forgot |
First, have you tuned the probe's capacitance to match the Z in of the scope? This is what calibrator signals are for in scopes. You connect the probe to it then use a tiny screw driver to adjust the capacitance in the little box that is part of the probe's connector until you get a clean looking square wave.
Do that before judging anything going on at the rising edge of a waveform.
I_F |
|
|
| jcx |
Linear.com App note 47 High Speed Amplifier Techniques
http://www.linear.com/pc/downloadDo...028,P1219,D4138
really big - slow to load even with dsl
because it has lots of 'scope photos
including appendix A: ABC's of probes - written by tektronix staff
sarting p69 |
|
|
| Onvinyl |
jcx, I_F,
thanks a lot, that will keep me going!
Rüdiger |
|
|
|
