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ComLink™ Series
CY2DP814
Document #: 38-07060 Rev. *B
Page 6 of 9
Notes:
8.
VOC measurement requires equipment with a 3-dB bandwidth of at least 300 MHz.
9.
All input pulses are supplied by a frequency generator with the following characteristics: TR and tF
≤ 1 nS; pulse re-rate = 50 Mpps; pulse width = 10 ± 0.2 nS.
1.4 V
1.0 V
V I(A )
V I(B )
V o c (ss)
V DD
V o c (pp)
VO D
VO C
TPA
TPC
TPB
50
50
GN D
15 0
15 0
S ta nda rd Te rm in a tio n
Pu ls e
G enerator
A
B
En 1
En 2
Figure 3. Test Circuit & Voltage Definitions for the Driver Common-mode Output Voltage[3, 4, 5, 7, 8]
0.0V
100%
80%
20%
0%
tR
tF
1.4V
1.0V
VI(A)
VI(B)
En1
En2
TPA
TPC
TPB
50
50
GND
150
150
Standard Termination
Pulse
Generator
A
B
10pF
VDD-2V
Figure 4. Test Circuit & Voltage Definitions for the Differential Output Signal [3, 4, 5, 6, 7]
TPA
TPC
TPB
50
50
Parallel Termination
En1
En2
Pu ls e
G enerator
Pu ls e
G enerator
VOC
t
pd
t
pe
DE
Q
+
VDD-2V
Figure 5. Test Circuit & Voltage Definitions for the Driver Common-Mode Output Voltage[3, 4, 5, 8, 9]
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