Digital Signal Processing Reference
In-Depth Information
PROBLEMS
10-1
For a transmission line in a bus specified to operate at 10 Gb/s with 50-ps
rise and fall times, how high in frequency should the tabular model be
constructed?
10-2
Derive an analytical formula to approximate the inductance and capac-
itance of a via. (
Hint:
Use the transmission-line techniques detained in
Chapter 3.)
10-3
Derive the
S
-parameters directly from a tabular RLCG model. (
Hint:
Remember the telegrapher's equations?)
10-4
Derive the characteristic impedance for a parallel-plate waveguide with a
width of
w
.
10-5
Create a model to estimate the crosstalk between two differential pairs
traversing a slot in the ground plane.
10-6
For an 8-bit-wide bus crossing a slot in the ground plane, what techniques
can be used to minimize the nonideal return paths? Create a model for
each option and simulate it in SPICE to demonstrate.
10-7
Can the slot be used as a bus? If so, what would the architecture and
topology look like? What would the advantages of this type of bus be?
Create a model of the bus and simulate the pulse response.
10-8
Approximate the voltage across a via 1 in. away if
E
and
H
are launched
in the TEM mode. (
Hint: E
ยท
dl
.)
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