Datasheet

DS25BR440
www.ti.com SNLS258B –FEBRUARY 2008–REVISED MARCH 2013
Electrical Characteristics (continued)
Over recommended operating supply and temperature ranges unless otherwise specified.
(1) (2) (3)
Symbol Parameter Conditions Min Typ Max Units
I
IL
Low Level Input Current V
IN
= GND 0 ±10 μA
V
CC
= 3.6V
V
CL
Input Clamp Voltage I
CL
= −18 mA, V
CC
= 0V −0.9 −1.5 V
V
OL
Low Level Output Voltage I
OL
= 4 mA 0.26 0.4 V
LVDS INPUT DC SPECIFICATIONS
V
ID
Input Differential Voltage 0 1 V
V
TH
Differential Input High Threshold V
CM
= +0.05V or V
CC
-0.05V 0 +100 mV
V
TL
Differential Input Low Threshold −100 0 mV
V
CMR
Common Mode Voltage Range V
ID
= 100 mV 0.05 V
CC
- V
0.05
V
IN
= +3.6V or 0V ±1 ±10 μA
I
IN
Input Current
V
CC
= 3.6V or 0V
C
IN
Input Capacitance Any LVDS Input Pin to GND 1.7 pF
R
IN
Input Termination Resistor Between IN+ and IN- 100 Ω
LVDS OUTPUT DC SPECIFICATIONS
V
OD
Differential Output Voltage 250 350 450 mV
R
L
= 100Ω
ΔV
OD
Change in Magnitude of V
OD
for Complimentary
-35 35 mV
Output States
V
OS
Offset Voltage 1.05 1.2 1.375 V
R
L
= 100Ω
ΔV
OS
Change in Magnitude of V
OS
for Complimentary
-35 35 mV
Output States
I
OS
Output Short Circuit Current
(4)
OUT to GND -35 -55 mA
OUT to V
CC
7 55 mA
C
OUT
Output Capacitance Any LVDS Output Pin to GND 1.2 pF
R
OUT
Output Termination Resistor Between OUT+ and OUT- 100 Ω
SUPPLY CURRENT
I
CC
Supply Current PE = OFF, EQ = OFF 162 190 mA
PWDN = H
I
CCZ
Power Down Supply Current PWDN = L 55 63 mA
(4) Output short circuit current (I
OS
) is specified as magnitude only, minus sign indicates direction only.
AC Electrical Characteristics
(1) (2)
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Units
LVDS OUTPUT AC SPECIFICATIONS
t
PLHD
Differential Propagation Delay Low to 390 600 ps
High
(3)
R
L
= 100Ω
t
PHLD
Differential Propagation Delay High to 400 600 ps
Low
(3)
t
SKD1
Pulse Skew |t
PLHD
− t
PHLD
| 10 50 ps
(3) (4)
(1) The Electrical Characteristics tables list guaranteed specifications under the listed Recommended Operating Conditions except as
otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and
are not guaranteed.
(2) Typical values represent most likely parametric norms for V
CC
= +3.3V and T
A
= +25°C, and at the Recommended Operation Conditions
at the time of product characterization and are not guaranteed.
(3) Specification is guaranteed by characterization and is not tested in production.
(4) t
SKD1
, |t
PLHD
− t
PHLD
|, Pulse Skew, is the magnitude difference in differential propagation delay time between the positive going edge and
the negative going edge of the same channel.
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