MPC9352 Motorola, MPC9352 Datasheet - Page 12

• Manufacturer Part Number: MPC9352
• Description: 3.3V / 2.5V 1:11 LVCMOS ZERO DELAY CLOCK GENERATOR
• Manufacturer: Motorola

MPC9352
cause any false clock triggering, however designers may be
uncomfortable with unwanted reflections on the line. To better
MOTOROLA
Since this step is well above the threshold region it will not
Figure 11. Single versus Dual Waveforms
Figure 13. CCLK MPC9352 AC test reference for V
W
Freescale Semiconductor, Inc.
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Ω
Ω
12
match the impedances when driving multiple lines the
situation in Figure 12. “Optimized Dual Line Termination”
should be used. In this case the series terminating resistors
are reduced such that when the parallel combination is added
to the output buffer impedance the line impedance is perfectly
matched.
Figure 12. Optimized Dual Line Termination
cc
Ω
= 3.3V and V
14Ω + 22Ω k 22Ω = 50Ω k 50Ω
Ω
25Ω = 25Ω
cc
= 2.5V
Ω
Ω
Ω
TIMING SOLUTIONS
Ω
Ω