Whats the SSN common-mode noise in single-ended receivers?

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sigle-ended recievers?

Single-ended recievers are sensitive to the common-mode noise such as EMI and SSN.

what's meaning of SSN.

who can tell me why single-ended receivers are sensitive to the common-mode noise?
 

sigle-ended recievers?

SSN is simultaneous switch noise. This is a challenging of high speed IO. when many signal of IO switch simulaneous, they will drop a lot of current of IO. there will be great bounce at the supply and gnd.
All the single-ended signal is sensitive to commmon mode noise.
 

Re: sigle-ended recievers?

This high frequncy SSN will result into gorund bounce.(which will effect you Vt)
Plus board level "L inducatnce" Ldi/dt is also a major contributor for noise.
 

Re: sigle-ended recievers?

simultaneous switch noise (SSN) => V = N Ldi/dt
N=number of ouputs are switching
L=Inductance of your bonding wire
di/dt=mainly your speed

single-ended receivers are sensitive to the common-mode noise because
1. the driver and the receiver have different ground potential
2. the single ended receivers are sensitive to the trip point.
 

Re: sigle-ended recievers?

This may help. I am uploading again for ur reference.
Simultaneous Switching Noise and Signal Integrity
Actel Application Note.
 

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