ComLink™ Series
CY2DP818
Document #: 38-07061 Rev. *A
Page 4 of 8
Table 7. DC Electrical Characteristics: 3.3V–LVPECL Output
Parameter
Description
Conditions
Min.
Typ.
Max.
Unit
VOD
Driver Differential Output
voltage p-p
VDD = Min., VIN = VIH or VIL
RL = 50 ohm
1000
3600
mV
VOC
Driver common-mode p-p VDD = Min., VIN = VIH or VIL
RL = 50 ohm
300
mV
Rise Time
Differential 20% to 80%
CL–10 pF RL and CL to GND
RL = 50 ohm
300
1200
ps
Fall Time
VOH
Output High Voltage
VDD = Min., VIN = VIH or VIL
IOH = –12 mA
2.1
3.0
V
VOL
Output Low Voltage
VDD = Min., VIN = VIH or VIL
User defined by VTT RTT.
0.8
1.3
V
IOS
Short Circuit Current
VDD = Max, VOUT = GND
–125
–150
mA
Table 8. AC Switching Characteristics @ 3.3 V (VDD = 3.3V ±5%, Temperature = –40°C to +85°C)
Parameter
Description
Conditions
Min.
Typ.
Max.
Unit
tPLH
Propagation Delay – Low to High
VOD = 100 mV
3
4
5
ns
tPHL
Propagation Delay – High to Low
3
4
5
ns
TPE
Enable (EN) to functional operation
6
ns
TPD
Functional operation to Disable
5
ns
tSK(0)
Output Skew: Skew between outputs of the same package (in phase)
0.2
ns
tSK(p)
Pulse Skew: Skew between opposite transitions of the same output
(tPHL–tPLH)
0.2
ns
tSK(t)
Package Skew: Skew between outputs of different packages at the
same power supply voltage, temperature and package type. Same
input signal level and output load.
VID = 100 mV
1
ns
Driver Design
Table 9. High-frequency Parametrics
Parameter
Description
Conditions
Min.
Typ.
Max.
Unit
Fmax
Maximum frequency
VDD = 3.3V
45%–55% duty cycle
Standard load circuit
350
MHz
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