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PRELIMINARY
CY2DP818-2
Document #: 38-07588 Rev. **
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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” of the DUT.
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 Differential
QXA - QXB
tR
tF
1.4 V
1.0 V
1.4 V
1.0 V
0V Differential
0V Differential
1.2 V CM
1.2 V CM
INA
INB
QXA
QXB
TPLH
TPHL
TPA
TPC
TPB
50
50
GND
150
150
Standard Termination
Pulse
Generator
A
B
10pF
VDD-2V
Figure 2. 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 3. Test Circuit and Voltage Definitions for the Driver Common-Mode Output Voltage[2,3,4,5]