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I'm having trouble understanding the purpose of precharging the BLs during a read operation of a traditional SRAM.
Is it because after a previous operation you want a common starting point (both bit lines being 1) so the sense amplifier can begin to sense the change in the BLs?
Thanks...
In a very simple RC circuit where there is an AC power source (AC), resistor (R), capacitor (C)...
Fundamentally, why is a series circuit with the configuration AC->R->C with the output taken across the capacitor a Low-pass filter
WHEREAS
a series circuit with the configuration AC ->C->R with...
I have a mixed signal board with +5 / -5 split planes.
How important is it that my capacitors (that are connected to -5 and +5 used for decoupling and stuff) fall directly between the split plane so that each plate is above the corresponding plane? Can the cap be placed anywhere? What if...
I have to modify an existing PCB in OrCad 16.0. They need to shrink the PCB in the X-dimension by 1-2 inches. I need to grab the components, vias, attached nets on the right edge of the PCB and slide everything over to the left as much as I can. There is room for it, I just need to learn how...
I have a four layer PCB, TOP/VCC/GND/BOTTOM
When I route from Bottom to VCC the via connecting the two has BOTTOM, hole in the ground, VCC, and a little dot connecting to TOP. Why would it even go to top if I'm not routing in it. Also the previous PCB that I am editing has a ton of little...
EDIT: YOU CAN USE view -> color view save
ALSO:
CREDIT TO Ismail.A.
Its pretty easy to add the films.
This is what I do:
1. In the menu list go to manufacture - Artwork - Film control (tab)
Top and bottom films will be there defaultly..just right click on that
and add the new film using...
I need +Power, -Power, 2 routing layers, and a ground plane. However, I don't know how to choose my stack-up? If someone could explain all the different possibilities along with the trade-offs I'd really appreciate it. I'm concerned with things such as cost and routing difficulty and EMI and...
actually, I think the configuration is correct, but I don't know what the 10k and 100k resistors are for... the bridge is before the 10k and 100k, those resistors are after the "input"... so why have a voltage divider on the input of the inst. amp?
If you match the picture b) to my circuit...
https://obrazki.elektroda.pl/3817652500_1359058632.jpg
Isn't the negative power supply pin on the op amp still connected to "ground"? I might be wrong but I though the negative terminal of the battery was at a 0 potential?
Why won't the capacitor discharge when the circuit is open? Is the simulator wrong? I thought the charge would flow directly to ground! In an RC circuit with one resistor, it doesn't matter if the resistor comes AFTER or BEFORE the capacitor does it...
I don't have much layout experience but I presume that when a modification needs to be made to a design a "metal-only change" means that the modification will result in only changing the upper metal layers and not changing the base layers such as nwell and substrate.
However, could someone else...
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