I'm attempting to test a parameter of an IC to the specifications listed in the data sheet. The data sheet describes the following load circuitry for the output:
The data sheet notes that CL be 50pF minimum, and that the diodes be 1N3064 or equivalent.
The device I'm testing has six outputs that need to be tested for an implied total of 42 discretes that I'd need on my PCB. I suppose I could use a header/jumper system to change which output of the IC is connected to a single load circuit on the board but that would require the load to be not that close to the output, sort of on it's own "branch" of the trace which I believe would be detrimental to the timing measurements I'm trying to make.
I suppose I have a few questions, any of which could help me here:
When the data sheet says "1N3064 or equivalent," what parameters of the 1N3064 are important? The 1N3064 is an axial device and I will probably have to find a surface-mount equivalent.
Is there something magical about this configuration that I'm missing? For example, that four diodes actually being equivalent to some other type of component that would be easier to place on a board?
Would switching a single load with jumpers make my life easier or more difficult?