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Receiver Electrical Characteristics
Driver Switching Characteristics
Receiver Switching Characteristics
SN65LVDS179-EP , , SN65LVDS180-EP
SN65LVDS050-EP , SN65LVDS051-EP
HIGH-SPEED DIFFERENTIAL LINE DRIVERS AND RECEIVERS
SGLS203B – SEPTEMBER 2003 – REVISED JANUARY 2007
over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
100
V
IT+
Positive-going differential input voltage threshold
See Figure 5 and Table 1 mV
–100
V
IT–
Negative-going differential input voltage threshold
I
OH
= –8 mA 2.4
V
OH
High-level output voltage V
I
OH
= –4 mA 2.8
V
OL
Low-level output voltage I
OL
= 8 mA 0.4 V
V
I
= 0 –2 –11 –20
I
I
Input current (A or B inputs) µ A
V
I
= 2.4 V –1.2 –3
I
I(OFF)
Power-off input current (A or B inputs) V
CC
= 0 V ± 20 µ A
I
IH
High-level input current (enables) V
IH
= 5 V ± 10 µ A
I
IL
Low-level input current (enables) V
IL
= 0.8 V ± 10 µ A
I
OZ
High-impedance output current V
O
= 0 or 5 V ± 10 µ A
C
I
Input capacitance 5 pF
over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
(1)
MAX UNIT
t
PLH
Propagation delay time, low- to high-level output 1.7 4.5 ns
t
PHL
Propagation delay time, high- to low-level output 1.7 4.5 ns
t
r
Differential output signal rise time 0.8 1.2 ns
R
L
= 100 Ω , C
L
= 10 pF,
See Figure 2
t
f
Differential output signal fall time 0.8 1.2 ns
t
sk(p)
Pulse skew (|t
PHL
– t
PLH
|)
(2)
300 ps
t
sk(o)
Channel-to-channel output skew
(3)
150 ps
t
en
Enable time 4.3 10 ns
See Figure 4
t
dis
Disable time 3.1 10 ns
(1) All typical values are at 25 ° C and with a 3.3-V supply.
(2) t
sk(p)
is the magnitude of the time difference between the high-to-low and low-to-high propagation delay times at an output.
(3) t
sk(o)
is the magnitude of the time difference between the outputs of a single device with all of their inputs connected together.
over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
(1)
MAX UNIT
t
PLH
Propagation delay time, low- to high-level output 3.7 4.5 ns
t
PHL
Propagation delay time, high- to low-level output 3.7 4.5 ns
C
L
= 10 pF,
t
sk(p)
Pulse skew (|t
PHL
– t
PLH
|)
(2)
0.3 ns
See Figure 6
t
r
Output signal rise time 0.7 1.5 ns
t
f
Output signal fall time 0.9 1.5 ns
t
PZH
Propagation delay time, high-impedance to high-level output 2.5 ns
t
PZL
Propagation delay time, high-impedance to low-level output 2.5 ns
See Figure 7
t
PHZ
Propagation delay time, high-level to high-impedance output 7 ns
t
PLZ
Propagation delay time, low-level to high-impedance output 4 ns
(1) All typical values are at 25 ° C and with a 3.3-V supply.
(2) t
sk(p)
is the magnitude of the time difference between the high-to-low and low-to-high propagation delay times at an output.
7
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