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ComLink™ Series
CY2DP818
Document #: 38-07061 Rev. *A
Page 5 of 8
Notes:
2.
All input pulses are supplied by a frequency generator with the following characteristics: tR and tF ≤ 1 ns; pulse rerate = 50 Mpps; pulse width = 10 ± 0.2 ns.
3.
RL = 50 ohm
± 1%; Zline = 50 ohm 6”.
4.
CL includes instrumentation and fixture capacitance within 6 mm of the UT.
5.
TPA and B are used for prop delay and Rise/Fall measurements. TPC is used for VOC measurements only and is otherwise connected to VDD – 2.
80 %
20%
0V Diffe rentia l
V0 Y -
V0 Z
t
R
t
F
1.4 V
1.0 V
1.4 V
1.0 V
0V D iffe rentia l
0V D iffe rentia l
1.2 V C M
1.2 V C M
V1A
V1B
V0Y
V0Z
T PL H
T PH L
TPA
TPC
TPB
50
50
GND
150
150
Standard Termination
Pulse
Generator
A
B
10pF
VDD-2V
Figure 1. Differential Receiver to Driver Propagation Delay and Driver Transition Time[2,3,4,5]
2.0V
1.6V
VI(A)
VI(B)
Next Device
VOD
VOC
TPA
TPC
TPB
50
50
GND
150
150
Standard Termination
Pulse
Generator
A
B
Figure 2. Test Circuit and Voltage Definitions for the Driver Common-Mode Output Voltage[2,3,4,5]
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