Basic but Advanced Measurement Info
时间：03-30
整理：3721RD
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Hello!
I have taped out my first chip, as my thesis for the university, and i'm expecting it back in a month. I have to prepare the measurements setup for that. It's a clock, running in 32kHz.
The issue is that all the measurements i've done in previous classes were really non "delicate". I mean we had 2 wires to which we connected VDD and gnd (using the crocodile wire end), we were placing the probes on the pads (the "feet" going on the board) of the chips we were using, and that was it.
Now i have to measure more accurately, so i'll have to use large coupling caps (size?) , i have to add connectors (as i noticed they are just to keep the probes steady or something) but i'm really confused about what i should take care of. Is there some tutorial, or you can name for me what my board would need? General ideas, like you need a connector for Vdd, and a coupling cap before the pad of the chip. For enable button you need....blah blah blah :)
Thank you very much
PS my chip has output, POR input, disable input, and supplies. I need to measure frequency over temperature, rise time fall time (i guess all these simply from the oscilloscope) and phase noise which will be even more tricky since i'll need 50 Ohm matching which needs even more extra work.... Any help is welcome!
I have taped out my first chip, as my thesis for the university, and i'm expecting it back in a month. I have to prepare the measurements setup for that. It's a clock, running in 32kHz.
The issue is that all the measurements i've done in previous classes were really non "delicate". I mean we had 2 wires to which we connected VDD and gnd (using the crocodile wire end), we were placing the probes on the pads (the "feet" going on the board) of the chips we were using, and that was it.
Now i have to measure more accurately, so i'll have to use large coupling caps (size?) , i have to add connectors (as i noticed they are just to keep the probes steady or something) but i'm really confused about what i should take care of. Is there some tutorial, or you can name for me what my board would need? General ideas, like you need a connector for Vdd, and a coupling cap before the pad of the chip. For enable button you need....blah blah blah :)
Thank you very much
PS my chip has output, POR input, disable input, and supplies. I need to measure frequency over temperature, rise time fall time (i guess all these simply from the oscilloscope) and phase noise which will be even more tricky since i'll need 50 Ohm matching which needs even more extra work.... Any help is welcome!