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DS92001 Datasheet, PDF (3/12 Pages) National Semiconductor (TI) – 3.3V B/LVDS-BLVDS Buffer | |||
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Electrical Characteristics (Continued)
Over recommended operating supply and temperature ranges unless otherwise specified. (Notes 2, 3)
Symbol
Parameter
Conditions
Min
BLVDS OUTPUT DC SPECIFICATIONS (OUT)
IOFF
IOS1
IOSD
Power-Off Leakage Current
VCC = 0V or Open Circuit, VOUT = 3.6V
â20
Output Short Circuit Current
(Note 4)
EN = VCC, VCM = 1.2V,VID = 200mV, VOUT+ = 0V,
or
VID = â200mV, VCM = 1.2V, VOUTâ = 0V
VID = â200mV, VCM = 1.2V, VOUT+ = VCC , or
VID = 200mV, VCM =1.2V, VOUTâ = VCC
Differential Output Short Circuit EN = VCC, VID = |200mV|, VCM. = 1.2V, VOD = 0V
Current (Note 4)
(connect true and complement outputs through a
current meter)
B/LVDS RECEIVER DC SPECIFICATIONS (IN)
VTH
Differential Input High
Threshold (Note 5)
VCM = +0.05V, +1.2V or +3.25V
VTL
Differential Input Low
â70
Threshold (Note 5)
VCMR
Common Mode Voltage Range
(Note 5)
|VID|/2
IIN
Input Current
VIN = VCC
VCC = 3.6V or 0V
VIN = 0V
âIIN
Change in Magnitude of IIN
VIN = VCC
VIN = 0V
VFSOD Fail-safe BLVDS Outputs
Inputs open,
RL = 27â¦
250
(OUT+ is a more positive
shorted, or
voltage than OUTâ)
terminated
RL = 50â¦
350
(Note 5)
SUPPLY CURRENT
ICCD
ICCZ
Total Dynamic Supply Current
(includes load current)
TRI-STATE Supply Current
EN = VCC, RL = 27⦠or 50â¦, CL = 15 pF,
Freq. = 200MHz 50% duty cycle,
VID = 200mV, VCM = 1.2V
EN = 0V,Freq. = 200MHz 50% duty cycle,
VID = 200mV, VCM= 1.2V
Typ Max Units
±5 +20 µA
â30 â60 mA
53
80 mA
|30| |42| mA
â30 â5 mV
â30
mV
VCC
V
â|VID|/2
|1.5| |20| µA
|1.5| |20| µA
1
6
µA
1
6
µA
350 500 mV
450 600 mV
50
65 mA
36
46 mA
AC Electrical Characteristics
Over recommended operating supply and temperature ranges unless otherwise specified. (Note 3)
Symbol
Parameter
Conditions
Min Typ Max Units
LVDS OUTPUT AC SPECIFICATIONS (OUT)
tPHLD
Differential Propagation Delay
High to Low
(Note 10)
VID = 200mV, VCM = 1.2V,
RL = 27⦠or 50â¦, CL = 15pF
Figure 3 and Figure 4
1.0
1.4
2.0
ns
tPLHD
Differential Propagation Delay
Low to High
(Note 10)
1.0
1.4
2.0
ns
tSKD1
Pulse Skew |tPLHD â tPHLD|
(measure of duty cycle)
(Notes 5, 6)
0
20 200 ps
tSKD3
Part-to-Part Skew (Note 5)
(Note 7)
0
200 300 ps
tSKD4
Part-to-Part Skew (Note 5)
(Note 8)
0
1
ns
3
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