The top 10 crystal oscillators! – SnapEDA Blog:
'via Blog this'
Sunday, December 17, 2017
Thursday, December 14, 2017
Monday, November 27, 2017
Sunday, November 26, 2017
Calculating Voltage Drops - Saturn PCB Toolkit
click on image to view
Example:
Start by getting the Conductor's DC Resistance
click on image to view
0.04445 Ohms in the above example
Select the Ohm's Law tab, Solve for Volts, enter the trace DC resistance and current.
Then select Solve.
click on image to view
That's it !
Example:
Start by getting the Conductor's DC Resistance
click on image to view
0.04445 Ohms in the above example
Select the Ohm's Law tab, Solve for Volts, enter the trace DC resistance and current.
Then select Solve.
click on image to view
That's it !
Monday, October 16, 2017
Tuesday, October 10, 2017
Landless Vias
You may be
surprised to know that HP Test equipment has used landless vias (no annular rings) for several years.
HP’s studies
show the landless vias can be more reliable than vias with pads.
Benefits include
higher routing density (more traces per layer) which may reduce the total number
of layers required in the PCB stackup.
Every layer
pair in the stackup is approximately a 20% cost adder.
The trick
is to find the fabricator that knows the process for plating via barrels with no annular
rings.
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