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What's the benefit of using 2 ground line (instead of 1) in a differential pair of SATA3 data cable?

Your picture actually shows four ground wires (two on each side of each of the signal pairs). On the SATA connector, the middle two wires are connected to a single pin, so the connector has three ...
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2 votes
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What are the recommended CK, DQ, DQS, ADDR impedances for LPDDR4?

I talked with a few more people, the answer is found in whatever LPDDR controller documentation the manufacturer of the device says it is. After talking with the manufacturer, they said, "Oh yeah ...
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2 votes
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Instability of fully differential op-amp in LTspice

You are using the startup flag which adds a fixed 10 μs ramp to the DC sources. In your case, the only sources that are DC are the power supplies, and the total ...
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4 votes

Instability of fully differential op-amp in LTspice

Don't know if this can help. Made with microcap v12. EDIT: sometimes, some "parameters" need to be changed ... "standard" or "power" defaults ... ITL1, ITL2, ITL4 (...
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-1 votes

What are the recommended CK, DQ, DQS, ADDR impedances for LPDDR4?

Afraid I can't help with references. But, if it happens that there's no firm answer to be found from relevant authorities, there's a possible explanation for that. If you don't need source termination ...
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1 vote

What is SN75176 receiver pin drive current?

This is an ancient TTL device (not just TTL-compatible!). It has a curve similar to any other part in that family: From: https://www.nutsvolts.com/magazine/article/...
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3 votes
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What is SN75176 receiver pin drive current?

It is specified for driving LSTTL loads (much more sink current than source current). So guaranteed output levels when sourcing 400uA or sinking 8mA. It is not guaranteed to drive HC inputs, where you ...
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2 votes

Frequency response of a differential amplifier

Plot Vin1 separately, the difference between the inputs will remain a constant voltage at low frequency when far below the GBW of the amplifier. Extend the lower frequency range of the simulation and ...
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