Digital Signal Processing Reference
In-Depth Information
V
DD
W = 440
m
m
L = 1
m
m
i
out
v
in
v
out
W = 100
m
m
L = 1
m
m
V
ss
Figure 11-43
Push-pull transmitter for Problem 11-2.
2.5
V
v
d
= 0.5
V
50
W
100
W
, 1
ns
v
d
= 0.5
V
2.5
V
0
V
Figure 11-44
Diode-terminated circuit for Problem 11-6.
11-7
Describe how the GTL transmitter circuit shown in Figure 11-30 slows
the rising-edge transition to reduce ringing due to parasitic package
inductance.
11-8
Use a Bergeron diagram to analyze the far-end-terminated open-drain
circuit in Figure 11-45.
11-9
Analyze the two open-drain circuits in Figure 11-45. How do the resulting
waveforms differ? Which is likely to be capable of supporting a higher
data transfer rate?
11-10
Wired-OR glitch:
The circuit in Figure 11-46 contains transmitters at
each end, with a receiver circuit near the middle. Initially, the right-hand
transmitter pulls the circuit low while the transmitter on the left is turned
off. At time
t
=
0 the left-hand transmitter turns on and the right-hand
transmitter turns off. Sketch the waveform at the receiver.
11-11
Use the device parameters in Table 11.5 to calculate the current versus
voltage curve for the on-die termination circuit shown in Figure 11-47
and estimate the effective termination resistance.
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